21st Century 124 Spider ~ Complete Specifications & Tidbits

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North American market specific – some specs may differ in other markets
[ 124 RALLY specs are listed separately here ]


Body Style: Roadster
Platform: 4th generation of N platform developed under Mazda/FCA joint partnership:
→ →ND: 4th generation Mazda MX-5 globally, introduced 1 year earlier than 124 Spider
→ →NE: Abarth 124 brand globally (except North America)
→ →NF
: Fiat 124 brand globally (including Abarth model in North America)
Assembly Plant(s): Hiroshima, Japan (same plant as ND MX-5); Abarths requiring special options like “Heritage stripe” and special badges, are finished up in Turin, Italy or Detroit, Michigan, depending on destination
EPA Vehicle Class: Two-seater
Drivetrain: Front-midship engine, rear wheel drive (RWD)
Safety Rating: 5 out of 5 stars (ANCAP)
NF Introduction Dates:
→ →Classica, Lusso – Summer 2016, as MY 2017
→ →Abarth – Fall 2016, as MY 2017
NE Introduction Dates:
→ →Abarth 124 SPIDER – Summer 2016, as MY 2017
→ →Abarth 124 RALLY – Fall 2016 (Europe); click here for RALLY specs
→ →Abarth 124 GT – Spring 2018 (Europe); click here for GT article
→ →Abarth 124 RALLY TRIBUTE – Spring 2019 (Europe); click here for article
Build Markets: Global (LHD & RHD versions)
Production Model Years (MY): 2017 through 2021 (2019 in Europe, since the 1.4 L MultiAir engine isn’t able to meet the new stricter WLPT emission regulations)
Zero to 60 mph: 6.8 seconds
60 mph to Zero (Braking with standard wheels / tires / brakes):
→ →Classica – 113 ft.
→ →Lusso – 110 ft.
→ →Abarth –  104 ft.
Quarter Mile: 14.9 sec. @ 93.2 mph
Top SpeedNF – 138 mph; NE – 144 mph
Drag Coefficient (Cd): 0.35 all models
Center of Gravity: 15.16 in. (38.5 cm)
Fiat 124 Spider Service Manual on USB: Mopar Tech Authority 81-270-17084-SUSB (see note)
Fiat 124 Spider Wiring Diagrams on USB: Mopar Tech Authority 81-270-17084-WUSB
Other Online References
: 2016 Mazda MX-5 manuals, Fiat 124 Spider Parts Catalog
Warranty (U.S.): 4 years / 50,000 miles

skyactiv-bodyLayout: Monocoque unibody ⇑ ; front and rear suspension sub-framesbody aluminum
Chassis construction: High-tensile strength steel
Aluminum body panels: Hood, front quarter panels, decklid  ⇒
Steel body panels: Doors, rear quarter panels, narrow panel just ahead of decklid
Other aluminum components: front bumper reinforcement, chassis tunnel braces, power plant frame (PPF), differential casing, roll bar, rear bulkhead panel, rear bumper reinforcement, interior access panel, roof frame & front panel, wiring loom, front wishbones, belly pan, and wheel uprights
Carbon Fiber composite
: Removable hardtop roof  (Abarth 124 GT only, more details)
Magnetic CB antenna capability: yes, on either rear quarter panel (unlike ND MX-5)
Windshield:  See my article for replacement details
Trim fasteners
: nylon push-type retainers used throughout vehicle and nylon clips for door trim panels
tow hook1Tow Eye: Mopar 68315340AA; should normally be found with tire-repair kit in trunk; fits either front or rear location

Ignition Switch: Mopar 68314297AA
Instructions (need key fob within operational range):

start stopIgnition Push Button Switch without pushing clutch pedal (MT) or brake pedal (AT):
Each time the keyless ignition START/STOP button is pushed, the ignition cycles in the order of OFF, ACC, ON, and back to OFF mode, without the engine ever starting.

Ignition Push Button Switch while  pushing clutch pedal (MT) or brake pedal (AT):
Each time the keyless ignition START/STOP button is pushed, the engine cycles in START or OFF mode.

Engine: Fiat 1.4 Liter Turbocharged Multi-Air* I-4, in-line four-cylinder with variable valve timing (VVT), liquid-cooled, assembled & shipped from Termoli, Italy
First longitudinal installation application of this engine required changes to
Manifolds, oil pan + dipstick, timing cover, intercooler, mounts, and engine cover
Displacement: 83.48 cu. in. (1,368 cc)
Bore x Stroke: 2.835 in. x 3.165 in. (72.0 mm x 80.4 mm)
Firing Order: 1 • 3 • 4 • 2 (# 1 is closest to the radiator @ timing belt end of engine)
Timing Belt Change Interval: 150,000 miles (240,000 km)
Intake Valve System: Instantaneous, fully variable intake valve lift and timing control by belt-driven, Multi-Air* hydraulic actuator “brick” that controls the 8 intake valves
Intake Valve Lobe Lift (max): 0.370 in. (9.3 mm)
Exhaust Valve System:
Single overhead camshaft that operates the 8 exhaust valves directly through inverted bucket tappets
Exhaust Valve Lobe Lift: 0.295 in. (7.5 mm)
Construction: Aluminum-alloy head and bed-plate; cast-iron block (details)
Compression Ratio: 9.8:1
Weight-to-Power Ratio: 15 lb./hp
TurboMopar 4892938AE; Garrett GT 1446 (great article on Fiat boost control)
Turbo Diverter (Surge) Valve: Mopar 4892991AA
Turbo Waste Gate Solenoid: Mopar 4627297AB 

Maximum Turbo Boost: @ 230,000 RPM; ECU limits max. boost to 22 psi / 2.49 bar
RPM Limiter: ECU limits max. to 6,250 rpm (and 3,000 rpm, if AT is in Park/Neutral)
“Too-Cold” Disable: ECU disables starter if below -22ºF (-30ºC) (more details)
ECU: Regional variations; all produced by Delphi
Air Filter: Mopar 68335718AA (note that Mazda installs the PEES-13-3A0 filter in both the ND MX-5 & the 124, and equivalent substitutions can also be used, like WIX WA10424)
Air Filter Change Interval: 30,000 miles (48,000 km) or 3 years (whichever comes first); if driven in dusty areas, inspect at every oil change, and change sooner, as warranted
Spark Plugs (4):  NGK SIKR9A7 Laser Iridium; Gap: 0.026 in. (Eurocompulsion recommends 0.024 in. for hi-perf. tunes, to prevent misfires at high revs)
Spark Plug Change Interval: 30,000 miles (48,000 km), or 3 years (whichever comes first)
Spark Plug Socket
:  58 in. (need to remove cover and remove ignition coil packs first)

Spark Plug Torque: 13 ft.•lb. (18 N•m)
Ignition Coil Packs (4): Mopar 68320163AA are OEM (coils wiring diagram)
Spark Plug/Coil Pack Install: application of dielectric grease inside boots at both ends of the spark plug wires, is strongly advised
Wrench size for Ignition Coil Pack Mounting Bolt: 10 mm
Ignition Coil Pack Mounting Bolt Torque: 6.6 ft.•lb. (9 N•m)
Re-calibrate Throttle Pedal (required after any ECU alterations): Ign ON (not ACC; more), press accel pedal to the floor 5X (within 10 seconds), Ign OFF (for another 10 seconds)

Power (horsepower):
Classica & Lusso: (SAE) 160 hp (119 kW) @ 5,500 rpm
Abarth: (SAE) 164 hp (122 kW) @ 5,500 rpm; extra 4 hp due to larger diameter exhaust crossover  and mid-pipe with no resonator.  Note that Europe uses metric hp (vs SAE), which explains why they state Abarth produces 170 hp.

Classica, Lusso & Abarth (normal mode): 184 lb.•ft. (250 N•m) @ 3,200 rpm
Abarth (sport mode): 184 lb.•ft. (250 N•m) @ 2,500 rpm

Fuel System: Sequential, multiport, returnless, electronically controlled fuel injection
Fuel Grade Requirement
→ →87 octane acceptable; 91 octane recommended (required for hi-perf. tunes)
Fuel Tank Capacity: 11.9 U.S. gallons (45 liters)
Emission Controls: 3-way catalytic converter, heated oxygen sensors, and no EGR valves – thanks to the precision of  Multi-Air* control of intake valves, resulting in CO² emissions of .66 lb./mile
EPA Fuel Economy (U.S. city/highway/combined):
→ →26/35/30 mpg with six-speed manual transmission
→ →25/36/29 mpg with six-speed automatic transmission
Highway Range (manual / automatic): 416.5 miles / 428.4 miles
MotorTrend “Real Fuel Economy” (U.S. city/highway/combined):
→ →30.4/43.4/35.1 mpg

Oil Grade Recommended: API Certified, FCA MS-12991 SAE 5W-40 Full Synthetic,
→ →
Mopar 05127394PC, or equivalent such as:

  • Pennzoil Platinum Euro ($ rebate $)
  • Total Quartz 9000 Energy 5W-40
  • Motul 8100 X-Cess 5W-40
  • Ravenol 5W-40 VST
  • Petronas Selenia Abarth 5W-40 ( aka Selenia K PE SAE 5W-40, believed to be the oil that Fiat fills each new engine built in Termoli, Italy with)
  • AMSOIL 5W-40 Classic ESP (AMSOIL has not sought FCA certification, but officially guaranties that this oil is a suitable alternative)

Note 1: Mobil has not sought FCA certification, but officially guaranties that their Mobil 1 ESP X3 0W-40 oil is also a suitable alternative.  I only mention this since, the others listed above may not be easily obtainable in some countries (since some Fiat dealers are even using Mobil 1, it is doubtful that FCA would fight this choice, should an oil related issue occur during the warranty period).

Note 2: In addition to lubricating your engine, the oil also plays a major function within the Multi-Air brick in controlling all of your intake valves* (the ECU even has the oil temperature/viscosity stats for the Pennzoil Platinum Euro oil, programmed in), so it is imperative that you adhere to the specified oil requirements, and not just find any ‘ol 5W-30 or 5W-40 oil that is convenient!

multiair brick

Multi-Air “brick”

*    Multi-Air: Hydraulically-actuated variable valve timing  
(VVT) engine technology enabling “cylinder by cylinder, stroke by stroke” control of intake air directly via the engine’s inlet valves (great article on Fiat’s Multi-Air technology)

Oil & Oil Filter Change Interval (shorter of ): 10,000 miles max. or ≈1 year or when
→ → the oil-life monitor indicates “Oil Change Due!
→ →(DIY instructions via drain plug + via extraction)
Oil Pump Pressure (@normal operating temp):
→ →@ curb idle: >10 psi
→ →@ 4,000 RPM: >58 psi
Oil Capacity
: Although the manual states 4 qts. with oil 03dry filter
→ →(3.8 liters), an initial fill of 3½ qts. is advised, to avoid having
→ →to extract potential overfill; add as necessary after running
→ →engine for a few moments (also good opportunity to inspect
→ →for O-ring seal leaks of the oil filter cap and drain plug)
Oil Drain Plug: Mopar 6507741AA, M14 x 1.5 mm (re-usable O-ring , not crush washer)
Oil Drain Plug Torque: 14.75 ft.•lb. (20 N•m)
Wrench size for Drain Plug: 13 mm (12 in.)
Wrench size for (9) Belly-Pan Bolts (to expose drain plug): 12 mm (1532 in.)
Belly-Pan Bolts Torque: 71 – 80 in.•lb.

Oil Filter Cartridge:
Mopar 68102241AA, or equivalent (includes new cap O-ring)
Oil Filter Cap (w/ Bypass Valve): Mopar 04892850AA (normally, no need to replace)
Oil Filter Cap Torque: 18 ft.•lb. (25 N•m) per Service Manual, but after it bottoms out,
→ →using the wrench, you risk distorting the O-ring
Wrench socket for oil filter cap: 27 mm (1 116 in.)
Reset Oil Change Monitor (also, an illuminated Wrench light, but only if oil change is what triggered the light (not tires or other scheduled maintenance):
→ →• Ign ON (not ACC; more)
→ →• press accel pedal to the floor 3X (within 10 seconds)
→ →• Ign OFF

→ → (regardless of wrench light status, reset after each oil change)


Although Mopar 68163848AB Antifreeze / Coolant was specified in the owner’s manual, Fiat is now (2018) recommending Mopar 68334695AA  Antifreeze / Coolantor equivalent FL22 coolant, as specified on the coolant reservoir cap, and matching the coolant Mazda installs (including the green color); more details

Coolant Capacity:
→ →7.6 qts. (7.2 liters) with six-speed manual
→ →7.5 qts. (7.1 liters) with six-speed automatic
Cold-Engine (blue) light: simply indicates coolant temperature is lower than 130° F
(54.5° C ); not to be considered a warning
Hot-Engine (red) light: warning that coolant temperature is at least 223° F (106° C )
Normal Operating Temperature Range
: 170°F – 195°F
Thermostat: Mopar 68320858AA (is this for U.S. and Canada only?)
Thermostat initial opening temperatures:
→ →Globally (except U.S. and Canada) ~ 188° F – 193° F (86.5° C – 89.5° C)
→ →U.S. and Canada ~ 177° F – 182° F (80.5° C – 83.5° C)

Availability Optional: Classica, Lusso, Abarth
Make / Model: Aisin B400 (Fiat # AW6R31)
Description: Six-speed; Planetary gear train, longitudinal layout
Prior usage: Same internals as Mazda’s SJ6A-EL (used in NC MX-5 and current ND MX-5) and Toyota’s A960 versions of the Aisin B400, although the housings differ slightly to accommodate respective engines
Rating: 229 lb.•ft.
Lockup Torque Converter: 2nd, 3rd, 4th, 5th and 6th gears
Fluid Requirement
: Mopar 68333587AA, or equivalent = JWS 3309
→ →(discussion of JWS 3324 alternative, as FYI)
Fluid Capacity
: 7.8 qts. (7.5 liters)
Wrench size for fill plug: 24 mm?; Victor Do states that a low-profile T55 Torx bit is rqd.
Wrench size for drain plug: 14 mm

Drain plug crush washer18mm ID/25mm OD
Gear Ratios (overall):
→ →1st: 3.538:1 (12.68:1)
→ →2nd: 2.06:1 (7.38:1)
→ →3rd: 1.404:1 (5.03:1)
→ →4th: 1.00:1 (3.58:1)
→ →5th: 0.713:1 (2.55:1)
→ →6th: 0.582:1 (2.09:1)
→ →Reverse: 3.168:1
Max. Speeds in gears:
→ →(manual shift mode, 17″ wheels, theoretical values for 5th and 6th gears)
→ →1st: 35 mph
→ →2nd: 61 mph
→ →3rd: 89 mph
→ →4th: 126 mph
→ →5th: 177 mph
→ →6th: 216 mph

Availability Standard: Classica, Lusso, Abarth
Make / Model: Mazda C635
Description: Six-speed; 1st, 2nd, 3rd, 4th gear: Triple cone
Prior usage: Mazda developed a different MT for the ND MX-5 (15 lbs. lighter, and presumably much lower torque capability) that Fiat chose to avoid, and instead use the same internals as version used in NC MX-5, although the housings differ slightly to accommodate respective engines; (adjustment procedure, should it pop out of 4th gear); per Good-Win Racing, clutch is not NC spec though.
Rating: 258 lb.•ft.
Fluid Requirement
: Mopar 68333586AA, or equivalent = 75W-90 GL-4 Gear Lube
→ →(not GL-5, nor GL-4/GL-5 combinations , per Workshop Manual ); (DIY instructions)
Fluid Capacity: 2.2 qts. (2.1 liters)
Wrench size for filler & drain plugs: 24 mm

top speed

photo courtesy of Thijs Helmers, on the Autobahn

Drain plug crush washer18mm ID/25mm OD
Gear Ratios (overall):
→ →1st: 4.363:1 (15.07:1)
→ →2nd: 2.348:1 (8.11:1)
→ →3rd: 1.647:1 (5.69:1)
→ →4th: 1.262:1 (4.36:1)
→ →5th: 1.000:1 (3.45:1)
→ →6th: 0.844:1 (2.92:1)
→ →Reverse: 3.863:1
Max. Speeds in gears (17″ wheels):
→ →1st: 30 mph
→ →2nd: 56 mph
→ →3rd: 79 mph
→ →4th: 104 mph
→ →5th: 131 mph
→ →6th: 155 mph (249 kmh; theoretical value without some goodies 🙂 )
Shift Knob thread: M10 x 1.25 mm (same as all MX-5)
Clutch Oil: Mopar 04318080AD, or equivalent = SAE J1703 DOT 3

Availability Standard: Classica, Lusso (both MT & AT)
Description: Torque-sensitive cone type, helical gears
Wrench socket for filler plug: 23 mm
Wrench socket for drain plug: 24 mm
Filler and drain plug crush washers18mm ID / 25mm OD
Fluid Requirement
: Mopar 68333589AA, or equivalent = 75W-90 SG1 (GL-5) Hypoid Gear Oil; (DIY instructions)
Fluid Capacity: 0.63 qt. (0.6 liter)
Axle Ratio: 3.454:1  with manual / 3.583:1  with automatic
Notes: Cross-compatible with ND MX-5 (different internals result in a 2.866:1 axle gear ratio with manual / 3.45:1 axle gear ratio with automatic); 15 lbs. lighter than the NC MX-5 differential)

Availability Standard
:  Abarth (both MT & AT)
Make / Model: GKN Driveline (Tochigi Fuji) / Super LSD
Description: Torque-sensitive cone clutch type
Torque Bias Ratio (TBR): 1.8:1
Wrench socket for filler plug: 23 mm
Wrench socket for drain plug
: 24 mm

Filler and drain plug crush washers
18mm ID / 25mm OD
Fluid Requirements
→ →•  Mopar 68334697AA, or equivalent = 4 oz. FCA MS-10111 Limited Slip Additive (friction modifier)
→ →•  and  remaining capacity: Mopar 68333589AA, or equivalent = 75W-90 SG1 (GL-5) Hypoid Gear Oil

Note that some equivalent products with the ‘limited slip’ designation, may already contain the additional
required friction modifier

Total Fluid Capacity: 0.63 qt. (0.6 liter)
Axle Ratio: 3.454:1  with manual / 3.583:1  with automatic
Notes: Cross-compatible with ND MX-5 GT (different internals result in a 2.866:1 axle gear ratio with manual / 3.45:1 axle gear ratio with automatic)

Alternator: Denso SC2 150 A with LIN regulator
Battery: Mazda’s “Start-Stop” EFB battery (Panasonic enhanced flooded cell lead-acid); Mazda part # PE1T-18-520-9U;  Q85, 520 CCA, 65 Ah [20 hr rate], 52 Ah [5 hr rate], 37.3 lbs (16.9 kg), more details

Important: The ⊝ negative* or ⊕ positive terminal should always be disconnected from the battery, prior to working on any electrical/electronic components:
→ →•  Tap the brake pedal afterwards, to completely discharge residual power
→ →•  Afterwards, upon re-connection, all modules learn current configurations

*  The sensor module (Mopar 68340388AA) attached to the ⊝ negative terminal is somewhat fragile.  Installing terminal with the customary tapping may cause damage, resulting in alternator not charging and warning message.

Wiring colors (source):

B Black, L Blue, BR Brown, DL Dark Blue, DG Dark Green, GY Grey, G Green, LB Light Blue, LG Light Green, O Orange, P Pink, R Red, SB Sky Blue, T Tan, V Violet, W White, Y Yellow

Most of the fuses are Low-profile mini-fuses; (article on adding fuse taps)
Engine Compartment Fuses:

Fuse Name Amperage Description
F01 ENG IG3 5 Engine control systems
F02 ENG IG2 5 Engine control systems
F03 HORN2 7.5 Horn
F04 C/U IG1 15 For protection of various circuits
F05 ENG IG1 7.5 Engine control system
F07 INTERIOR 15 Interior lighting
F09 AUDIO2 15 Audio system
F10 METER1 10 Instrument cluster
F11 SRIS1 7.5 Air bag
F13 RADIO 7.5 Audio system + Backup camera
F14 ENGNE3 20 Engine control system
F15 ENGNE1 10 Engine control system
F16 ENGNE2 15 Engine control system
F17 AUDIO1 25 Audio system
F18 A/C MAG 7.5 Air conditioner
F19 AT PUMP H/L HI 20 Transmission control system (IF Equipped)
F20 AT 15 Transmission control system (IF Equipped)
F21 D LOCK 25 Power door locks
F22 H/L RH 20 Headlight (RH)
F23 ENG+B2 7.5 Engine Control System
F24 TAIL 20 Taillights/Number plate lights/Position lights
F26 ROOM 25 Overhead light
F27 FOG 15 Fog lights
F28 H/CLEAN 20 Headlight washer (where provided)
F29 STOP 10 Stop lights/Rear fog light (where provided)
F30 HORN 15 Horn
F31 H/L LH 15 Headlight (LH)
F32 ABS/DSC S 30 ABS/DSC system
F33 HAZARD 15 Hazard warning flashers/Direction indicators lights
F34 FUEL PUMP 15 Fuel System
F35 ENG+B3 5 Engine Control System
F36 WIPER 20 Windshield wipers
F37 CABIN + B 50 For protection of various circuits
F40 ABS/DSC M 50 ABS/DSC system
F41 EVVT A/R PUMP 20 Engine control system
F44 FAN2 40 Cooling fan
F45 ENG. MAN 40 Engine control system
F46 EPS 60 Power steering system
F47 DEFOG 30 Rear window defogger
F48 IG2 30 For protection of various circuits
F50 HVAC 40 Heater + Air conditioner

Passenger Compartment Fuses:

Fuse Name Amperage Description
F01 RHT R 30
F02 RHT L 30
F05 F.OUTLET 15 Accessory sockets
F07 AT IND 7.5 AT shift indicator (where provided)
F08 MIRROR 7.5 Power control mirror
F09 R_DECK R 30
F10 R_DECK L 30
F11 F.WASHER 15 Windscreen washer
F12 P.WINDOW 30 Power windows
F14 SRS2/ESCL 30

Battery Fuses: 200 amp; the red module hanging from the positive battery terminal, protects the battery against reverse polarity; Mazda # N243-67-S99

Port: 16-pin, white SAE J1962 diagnostic connector located behind the dashboard, above the brake pedal, used to:
→ →•  Read/clear diagnostic trouble codes (DTC): List of Codes & Descriptions
→ →•  Update firmware for various modules
→ →•  Re-initialize modules (headlight aiming module, etc.)
→ →•  Feed vehicle data to various devices (gauges, dashcams, GPS trackers, etc.)
→ →•  Battery keep-alive/charging
→ →•  Add CAN module to change behavior of some features (ie turn signal volume)
Recommended Scanner Type (< $100; app-dependent interface): ELM327, more details
Recommended app (needed to interface with scanner): Torque Pro (try Lite first)

Maintenance Monitor App
: Scheduled Maintenance / Tire Rotation / Oil Change
→ →~ details
Warning Guidance App: Display of CEL messages; an OBDII device will provide more informative results
Screen Thermal Protection:  Warning message “Display is too Hot. Screen performance may be decreased until it cools” when temperature exceeds 176°F (80°C)
Fuel Economy App: Graphical display of fuel economy history ~ details
Navigation App: enabled with Fiat SatNav card Mopar Part # 68366118AA ~ details
Music Album/Song App: Gracenote® database ~ details
HD Radio Traffic App: TMC can provide real-time status of traffic for many major metropolitan areas in some firmware versions/regions/countries
Fiat Connect System FAQs: Mazda Document for Service Technicians
Personalization Settings:

Aside from Language, Distance & Temperature Units, Fuel Economy App options and Audio settings, the CMU can communicate with various electronic modules via the HS-CAN network, to alter settings for: Door Locks / Keyless Entry / BSM / Illuminated Entry / Auto-Wipers / various Headlights, DRL and Turn Signals options ~ details

→ →Double wishbone with aluminum control arms (same as ND MX-5)
→ →Tokico shocks (Classica, Lusso)
→ →Bilstein shocks (Abarth)
→ →Coil spring rate: 162 lbs.
→ →Front stabilizer bar size: 23.6 mm
→ →Strut tower brace (Abarth)

→ →Multi-link (5-arm) with aluminum bearing support (same as ND MX-5)
→ →Tokico shocks (Classica, Lusso)
→ →Bilstein shocks (Abarth)
→ →Coil spring rate: 97 lbs.
→ →Rear stabilizer bar size:
→ →→ →Classica & Lusso: 14.0 mm
→ →→ →Abarth: 13.0 mm

Alignment Specssome recommended settings; and a great suspension analysis article

124 SPIDER ~ STEERINGsteering
Description: Rack-and-pinion  
Power Assist: Double pinion electric power assist
Overall Ratio: 15.5:1
Turning Diameter (curb-to-curb): 30.8 ft. (9.4 m)
Steering Wheel Tilt Range: 3.3 in. (84 mm)
Steering Wheel Telescopic Stroke:
(if ever offered; doubtful) 1.18 in. (30 mm)
(article to add feature to 124 Spider)
Steering Wheel Turns (lock-to-lock): 2.7
Steering Wheel Diameter: 14 ½ in.

Description: plastic, aerodynamic design so that wind pushes them down against the windshield at highway speeds; Part #s are Mazda, as Fiat wants ≈$100 for the pair
Right side
: Blade insert only – N247-67-333; Wiper blade assembly – NA9C-67-330
Left side: Blade insert only – N256-67-333 ; Wiper blade assembly – NA8W-67-330
(see magoffin’s post for installation tips)

Refrigerant Type: HFC134a (R-134a, aka as Freon™ 134a, a hydrofluorocarbon (HFC) refrigerant) is specified in my MY 2017, but at some point switched over to HFO-1234yf (aka Opteon™ YF, a hydrofluoro-olefin (HFO) refrigerant) instead, and that is what Mopar now “officially” recommends, as it is claimed to be a compatible alternative (that meets EU standards), with “improved performance” and more environmentally friendly (although it is mildly flammable and does require special handling).  Refer to the label on the underside of your hood (also specifies the PAG compressor lubricant that needs to be added), and if you aren’t in Europe, and your AC shop still uses R-134a, you need not change over.

HVAC “Cabin” Filter: Mopar 68313632AA or Mazda N243-61-B05; it’s primary purpose is to protect foreign material from interfering with the fan, rather than filtering cabin air.  Contrary to the owner’s manual, which states mandatory replacement every 18,000 miles (every 3rd oil change; resulting in Mopar’s excessively high fee for this service), Fiat has now agreed that this filter should not normally need to be changed, unless air flow seems restricted. Filter access procedure here.  Note: If debris (or critters) seems to be an issue, consider adding a screen to the air inlet.

Standard four-wheel anti-lock brake system (ABS): Classica, Lusso, Abarth
→ →(All components are comparable with standard brakes in ND MX-5)
→ →Front Brakes:

→ →→ →Ventilated discs with 11 in. (279 mm) floating single-piston calipers
→ →→ →Pad thickness: 9 mm (new); 1.5 mm (min.)
→ →→ →Swept Area (per caliper): 10.5 sq. in. (67.8 sq. cm)
→ →Rear Brakes:
→ →→ →Solid discs with 11 in. (279 mm) floating single-piston calipers
→ →→ →Pad thickness: 8 mm (new); 1.5 mm (min.)
→ →→ →Swept Area (per caliper): 9.8 sq. in. (63.0 sq. cm)

Availability Optional: Abarth
→ →(Comparable with premium brakes in ND MX-5 Club)
→ →Front Brakes:
→ →→ →Brembo ventilated discs with 11 in. (279 mm) opposed, aluminum,
→ →→ →fixed red  4-piston calipers
→ →→ →Pad thickness: 14 mm (new); acoustic wear indicator
→ →→ →Swept Area (per caliper): 18.6 sq. in. (120 sq. cm)
→ →Rear Brakes:
→ →→ →Solid discs with 11 in. (279 mm) floating single-piston calipers
→ →→ →(standard configuration, but calipers are painted red to match)
→ →→ →Pad thickness: 8 mm (new); 1.5 mm (min.)
→ →→ →Swept Area (per caliper): 9.8 sq. in. (63.0 sq. cm)

Power-assist Type: Vacuum Booster
Rotor Removal Aid: If OEM rotor is stuck, thread a bolt in dedicated M8 threaded hole
Brake Fluid Type: Mopar 04318080AD, or equivalent = SAE J1703 DOT 3, which is standard for Classica, Lusso, Abarth in North America and Classica, Lusso elsewhere (DOT 4 is “acceptable”); DOT 4 is standard for Abarth elsewhere
Brake Fluid Capacity: 0.57 qt. (0.55 liter)
Parking Brake Type: Mechanical (lever type) via cable to rear calipers
Dynamic Stability Control (DSC): Standard
Traction Control System (TCS)
: StandardMazda-mx-5-gets-five-star-ancap-rating3
→ →(click here for article on DSC/TCS)
Airbags: Steering wheel hub + driver’s outboard   
seat-back bolster airbags are always in ready mode.  If the passenger seat is occupied by an adult, that seat’s outboard seat-back bolster + the passenger-side dashboard airbags will also be in ready mode.
Convertible Rollover Protection: same fixed aluminum hoops and high-strength steel A-pillars as ND MX-5



Common specs for all OEM wheels (including OZ), other than 124 RALLY:
Wheel Bolt Pattern: 4 x 100 PCD (same as all MX-5)wheel offset
Wheel Offset (ET): +45 mm (positive offset, aka wheel inset)  
Center Bore
: 54.1 mm (wheels are lugcentric, but if wheels with
→ → a larger center bore are used, lug nut procedure is critical)
Quantity Standard: 4 (no spare wheel)
Lug Nut Threads
: M12 x 1.5 mm
Lug Nut Seat: Cone @ 60° angle
Min. Lug Nut engagement (8+ turns OEM norm): 6½ turns
→ → (if spacers > 5 mm are installed, use longer lug bolts, or better
→ → yet, obtain spacers with pressed studs, like these)
Lug Nut Torque
:  94 ft.•lb. (128 N•m)
→ →(important to re-torque 50 – 100 miles after installation)
Wrench socket for OEM lug nuts
:  21 mm (1316 in.)
→ →Note: If you install locking lug nuts, Mopar brand key requires a 19 mm socket, unlike → →Mazda brand, which will work with existing 21 mm socket

Availability Standard: Classica
Tire Mfr. and ModelYokohama Advan Sport V105
Tire Size, Type and Rating:  195/50R16, three-season, “V” (149 mph)
Tire Weight:  18 lbs.
Tire Dimensions:  23.7 in. diameter, 7.7 in. width, 3.8 in. sidewall, 7.2 in. tread width
: 280
Tire/Rim Country of Origin
: Japan/China
Wheel Revs per Mile*: 875
Mopar Part #s: 68313985AA for rim; 68098829AA for Fiat center cap
Wheel Rims
: Custom exclusively for Fiat 124 Classica, 16″ x 6½”, aluminum alloy, silver, 14 spokes, 16.8 lbs.

Availability Standard: Lusso
Tire Mfr. and Model: Bridgestone Potenza S001
Tire Size, Type and Rating:  205/45R17, three-season, “W” (168 mph)
Tire Weight:  19 lbs.
Tire Dimensions
:   24.3 in. diameter, 8.1 in. width, 3.6 in. sidewall, 6.5 in. tread width
Treadwear: 280
Tire/Rim Country of Origin: Japan/China
Wheel Revs per Mile*: 859
Mopar Part #s: 68417402AA for rim; 68098829AA for Fiat center cap
Wheel Rims
: Custom exclusively for Fiat 124 Lusso, 17″ x 7″, aluminum alloy, silver, 12 spokes, 20.4 lbs.

Availability Standard: Abarth 124 SPIDER
Tire Mfr. and Model
: Bridgestone Potenza RE050A
Tire Size, Type and Rating:  205/45R17, three-season, “W” (168 mph)
Tire Weight:  20 lbs.
Tire Dimensions
:   24.3 in. diameter, 8.2 in. width, 3.6 in. sidewall, 7.4 in. tread width
: 140
Tire/Rim Country of Origin: Japan/China
Wheel Revs per Mile*:  857
Mopar Part #s: 68368813AA for rim; 4726183AB for center cap
Wheel Rims
: Custom exclusively for Abarth 124, 17″ x 7″, aluminum alloy, gun metal, 10 spokes, 21.78 lbs. w/o TPMS sensor

abarth wheel6Availability Standard: Abarth 124 GT
Tire Mfr. and Model
: Bridgestone Potenza RE050A
Tire Weight:  20 lbs.
Treadwear: 140
Wheel Revs per Mile*
:  857
Tire/Rim Country of Origin
: Japan/Italy
Tire Size, Type and Rating:  205/45R17, three-season, “W” (168 mph)
Tire Dimensions
:   24.3 in. diameter, 8.2 in. width, 3.6 in. sidewall, 7.4 in. tread width
Mopar Part #s: 52109667 for rim; 4726183AB for center cap
Wheel Rims
: Custom exclusively for Abarth 124 GT by OZ Racing, 17″ x 7″, aluminum alloy, matte black, 12 spokes, 15.18 lbs. w/o TPMS sensor (3 kg lighter than stock, although I suspect OZ was actually able to achieve a 4 kg reduction, like the Rally Tribute wheels ⇓), more details

oz wheels6Availability Standard: Abarth 124 RALLY TRIBUTE
Tire Mfr. and Model
: Bridgestone Potenza RE050A
Tire Weight:  20 lbs.
Treadwear: 140
Wheel Revs per Mile*
:  857
Tire/Rim Country of Origin
: Japan/Italy
Tire Size, Type and Rating:  205/45R17, three-season, “W” (168 mph)
Tire Dimensions
:   24.3 in. diameter, 8.2 in. width, 3.6 in. sidewall, 7.4 in. tread width
Mopar Part #s: ? for rim; 4726183AB for center cap
Wheel Rims
: Custom exclusively for Abarth 124 RALLY TRIBUTE by OZ Racing, 17″ x 7″, aluminum alloy, white, 12 spokes, 12.98 lbs. w/o TPMS sensor (4 kg lighter than stock)

Availability Standard: Classica “Urbana”urbanna
Tire Mfr. and Model
: Bridgestone Potenza S001
Tire Size, Type and Rating
:  205/45R17, three-season, “W” (168 mph)
Tire Weight
:  19 lbs.
Tire Dimensions
:   24.3 in. diameter, 8.1 in. width, 3.6 in. sidewall, 6.5 in. tread width
: 280
Tire/Rim Country of Origin
: Japan/China
Wheel Revs per Mile*
: 859
Mopar Part #s
: 68497744AA for rim; 68098829AA for Fiat center cap
Wheel Rims
: Custom exclusively for Fiat 124 Classica “Urbana”, 17″ x 7″, aluminum alloy, black diamond, 12 spokes

Availability Optional:  Fiat “Historical”
Wheel Bolt Pattern: 4 x 100 PCDhistorical wheel
Wheel Offset (ET)
: +45 mm 
Center Bore
: 54.1 mm
Recommended Tire Size and Rating:  205/45R17, “W” (168 mph)
Rim Country of Origin
: Italy
Mopar Part #s: 52064513 (52064514 is part # for set of 4 wheels)
Wheel Rims: Custom exclusively for Fiat, 17″ x 7″, aluminum alloy, silver, 4 spokes, ≈ 21 lbs.
Notes specific to these wheels:
→ →•  Apparently they don’t have DOT certification needed to be sold legally in U.S.
→ →•  Apparently they won’t clear Brembo brakes unless spacers are added (per source)


Recommended Tire Pressure (B-pillar placard states 29 PSI for both front & rear tires on all models, however, upon closer analysis of that placard):

Normal loading (cargo + occupants 340 lbs.): 32 – 36 PSI (cold) vs. stated 29 PSI
High-speed driving (> 75 mph): 32 – 36 PSI (cold)

Recommended Tire Fitment Max Sizes:

With stock 16″ wheels With stock 17″ wheels
225/45R16 (for stock vehicle height) 225/45R17 (for stock vehicle height)
225/45R16 (if vehicle lowered ≈ 1″) 215/45R17 (if vehicle lowered ≈ 1″)

Recommended 17″ Tires for Winter season:
→ →Vredstein Quatrac 5 205/45R17 or Vredstein Quatrac Pro 205/45R17 (source)

Recommended 17″ Replacement Tires (non-competitive):
→ →Michelin Pilot Sport 4 215/45 R 17 (source); comparison:

205/45-17 215/45-17 Difference
Diameter inches (mm) 24.26 (616.3) 24.62 (625.3) 0.35 (9) 1.5%
Width inches (mm) 8.07 (205) 8.46 (215) 0.39 (10) 4.9%
Circum. inches (mm) 76.23 (1936.16) 77.34 (1964.44) 1.11 (28.27) 1.5%
Sidewall Height inches (mm) 3.63 (92.25) 3.81 (96.75) 0.18 (4.5) 4.9%
Revolutions per mile (km) 831.2 (516.48) 819.24 (509.05) -11.96 (-7.43) -1.4%

Tire Pressure Monitoring System (TPMS):

✅ Classica & Lusso uses ABS algorithms; no actual wheel sensors (MY 2017, 2018)
Reset TPMS lamp  (Classica & Lusso):
Ign ON (not ACC; more), Hold TPMS button until beep, and lamp has flashed twice


✅ Abarth wheels have/require individual TPMS sensors
(and MY 2019, 2020 Classica & Lusso; to be confirmed):
→ →• North America:  315 Mhz
→ →• UK/Europe + Australia:  433 Mhz; details (click to enlarge
→ → →Australian Abarth rim photo, courtesy of Clark Rees)  
Note: If the sensors are the new rubber type, they are not reusable on replacement rims, per Mazda bulletin.
Reset/Register TPMS sensor’s ID codes after wheel changes
Ign ON (not ACC; more), Ign OFF, wait 15 min.,
drive ≥ 16 mph for 10 min.

*  Data source TireRack.com; values are adjusted to reflect representative rolling radius.  Manual calculation results may differ, using equation [63360/(πΦ)], where Φ is the tire’s unloaded diameter (inches), since Revolutions per mile of a mounted tire under load will generally be about 3% more than the calculated number.  These are most likely the numbers programmed into the PCM, for converting ABS wheel revolution data into Vehicle Speed.

Wheelbase: 90.9 in. (2,309 mm)
Track Width, Front: 58.9 in. (1,496 mm)
Track Width, Rear: 59.17 in. (1,503 mm)
Overall Length: 159.6 in. (4,054 mm)
Overall Width (w/o mirrors): 68.5 in. (1,740 mm)
Overall Height: 48.5 in. (1,232 mm)
Minimum Ground Clearance (Laden): 5.32 in. (135 mm)
Unladen Ground Clearance (MT Abarth): 5.9 in. (150 mm)
Approach angle: 13.1°
Max. Combined Capacity of Cargo & Occupants (@ 29 psi):
→ →340 lbs. (154 kg.), as stated on B-pillar tire placard; more details
Curb Weight*, pounds (kg):
→ →2,436 (1,105) six-speed manual (Classica, Lusso)
→ →2,477 (1,124) six-speed manual (Abarth)
→ →2,476 (1,123) six-speed automatic (Classica, Lusso)
→ →2,516 (1,141) six-speed automatic (Abarth)
Gross Vehicle Weight Rating (GVWR), pounds (kg): 2,932 (1,330)
Corner weight distribution: LF 28% (battery?);  RF 25%; LR 23%; RR 24%


Courtesy of Good-Win Racing ~ 2017 Classica with Technology package, full tank of gasoline, manual transmission

*  North American Curb Weight is defined as the weight of a vehicle in running order, unoccupied and unladen, with all fluid reservoirs filled to nominal capacity (full) including fuel, and with all standard equipment fitted (options and accessories are not included)

Seating Capacity: 2
Head Room: 37.4 in. (950 mm); more, if seats lowered
Legroom: Classica, Lusso, Abarth
→ →43.1 in. (1,095 mm) for driver
→ →38.0 in. (965 mm) for passenger due to subwoofer/wedge, even for non-Bose cars
Shoulder Room: 52.1 in. (1,325 mm)
Hip Room: 52.0 in. (1,320 mm)
Seat Travel: 8.3 in. (210 mm) driver / 6.7 in. (170 mm) passenger
Seat Back Angle: 25° nominal, 12° forward, 22° rearward
Trunk Cargo space: 4.94 cu ft (140 liter); more, if side trim panels are removed
Trunk Opening Size: approx. 35 in. W x 14 in. L (trunk cavity dimensions are larger)

Exterior Lights:

front-lites  rear-lites

LED adaptive headlights (optional) {1}:
→ →Front side-marker lights:
→ →→ →WY5W (5 Watts, amber, U.S. only)
→ →→ →W5W (5 Watts, white)
→ →Front (halo) parking lights: LED
→ →Low-beams: LED
→ →High-beams: LED
→ →Daytime Running Lights (DRL): LED
→ →Procedure to re-initialize adaptive aiming, if vehicle’s stance has been altered

Halogen fixed-aim headlights (standard) {1}:
→ →Front (halo) parking/side-marker lights:
→ →→ →WY5W (5 Watts, amber, U.S. only)
→ →→ →W5W (5 Watts, white)
→ →High-beam/Daytime Running Lights (DRL):
→ →→ →North America: HB3 9005 (65 Watts)
→ →→ →All other regions: H15 (55 Watts)
→ →Low-beams: H11 (55 Watts); recommended upgrade
→ →Procedure to manually adjust aiming, if vehicle’s stance has been altered

Front turn signal lights {2}: WY21W, SAE 7443NA (21 Watts)
Front Fog lights (optional) {3}: H11 (55 Watts); recommended upgrade
Rear tail lights {5}: LED
Brake lights {5}: LED
Center High Mount Stop Light (CHMSL) {7}: LED
Rear turn signal lights {5}: WY21W, SAE 7443NA (21 Watts)
Rear side-marker lights (Fiat U.S. + Abarth globally) {4}: W5W (5 Watts)
Reverse lights {6}: W21W, SAE 7440 (21 Watts)
Rear Fog light (optional) {6}: W21W, SAE 7440 (21 Watts)
License plate lights: W5W (5 Watts)
Side repeater lights (above front wheel wells) {8}: WY5W integral with lens (5 Watts);
 → →(nice alternatives with removable bulb: smoked lens or clear lens)

Interior lights:
Overhead light
: DE3175 (10 Watts, 31 mm Festoon)
Trunk light: DE3022 (5 Watts, 31 mm Festoon)
✅ Upgrading both interior light bulbs with Super-bright CANbus LED units* is highly recommended for significantly improved lighting

 Note: LED “bulb” substitutions can be made for incandescent bulbs, but they won’t always behave well with the Body Control Module (which interprets the very small circuit current draw as a burned-out bulb, resulting in “hyperflash”), unless: (1) at least one of the bulbs in the respective circuit remains incandescent, or (2) the LED bulbs are CANbus “error-free” units (built-in load resistor), or (3) you splice into the wiring circuit to add your own inline resistor.

Bulb replacement instructions:
Exterior    Abarth rear side-marker    Side repeater   |   Interior


FCA  # Subject
23-038-18 Convertible Top Rubs On Rear of Headrest When Opening/Closing
18-059-17 REV. A Powertrain Control Module (PCM) Update for Check Engine Light/Engine Knock/Downshift Issues


Key Fob Mfr./Model #: Mitsubishi SKE13D-01 (same as ND MX-5*)
Key Fob FCC #: WZASKE13D01
Key Fob battery
: CR2025 (expect to replace bi-annuallymore fob info)
Key Fob battery LOW: When the START/STOP button is pushed from ON to ACC or OFF position, and the cluster Key Indicator Light flashes green for approximately 30 seconds

 There have been several reports that Mazda fobs having the same FCC number were purchased as replacements, primarily because they are more plentiful and priced significantly lower, and although the fob functions in the 124 Spider, nevertheless, a variation is detected that results in an annoying red display of the cluster Key Indicator Light.

paint 124

Where to find your paint code: For North American 124 Spiders, Mazda prints their paint code on the B-pillar VIN placard (just above the striker plate for the driver’s door latch)
Paint: Mazda’s “Takuminuri”, water-based “Aqua-tech
Paint thickness (in microns per source, avoid polishing! as paint is VERY thin due to Mazda’s gram strategy):
→ →Aluminum body panels (hood, decklid): 33 μm; (front quarter panels): 46 μm
→ →Steel body panels (Doors, rear quarter panels): 109 μm


click illustration to enlarge; note the absence of primer

(color chips are my approximations, and may not accurately reflect true color)
whiteColor names
(regional and MY variations)
(notes; availability)
→ →
Fiat’s primary (and alternative) paint codes
→ →
Mazda’s paint code  | Mazda’s color name

Rosso Passione | Passion Red | Costa Brava 1972 Red | Hypnotique Red (MY 2019 name)    (solid; MY 2017 – 2020)
→ →PKM (PR2 895B 162C; some documents state PBM?)
→ →A7V |  —  (was never a Mazda color; no name)   @amazon

whiteBianco Gelato | Alpine White | Ice White | Arctic White Clear Coat | Turini 1975 White |  Ice White | Brillante White (MY 2019 name)    (solid; MY 2017 – 2020)
→ →PWE (PWV NWV 296A 163C)
→ →A4D | Artic White   @amazon

Bronzo Magnetico | Magnetic Bronze | Titanium | Bronze | Magnetico Bronze Metallic (MY 2019 name)   (metallic; MY 2017 – 2019 only)
→ →42S | Titanium Flash Mica   @amazon

Azzurro Italia  | Pacific | Italia Blue | Isola d’Elba 1974 Blue | Azure   (metallic; MY 2017 only)
→ →PB1 (KBP 599 208B)
→ →44J | Dynamic Blue Mica   @amazon

Grigio Moda  | Meteor Gray | Fashion Grey | Dark Gray | Moda Gray Metallic (MY 2019 name)    (metallic; MY 2017 – 2020)
→ →PA5 (243B)
→ →42A | Meteor Gray Mica   @amazon

Nero Cinema | Nero Vesuvio  | Black | Volcano Black | Jet Black | Nero San Marino 1972  | Forte Black (MY 2019 name)   (metallic; MY 2017 – 2020)
→ →PXC (PX8 244B)
→ →41W | Jet Black Mica @amazon

Grigio Argento  | Glacier Silver Metallic | Argento Grey | Aluminum Metallic | Portogallo 1974 Grey   (metallic; MY 2017 only)
→ →PSL (NSN 348B 235B)
→ →38P | Aluminum Metallic   @amazon

Bianco Ghiaccio Perla | Arctic Pearl | Urban White |  Crystal White Pearl | Tri-Coat White Pearl   (pearlescent; MY 2017 only)
→ →PWH (KWH)
→ →34K | Crystal White Pearl   @amazon

Bleu Scuro | Nuovo Blu Mediterraneo | Dark Blue Metallic |  Mare Blue Metallic   (metallic; MY 2018 – 2020)
→ →PHB (487B)
→ →42M | Deep Crystal Blue Mica   @amazon

E9E4DDPuro Bianca Perla | Nuovo Bianco Ghiaccio | Tri-Coat White Pearl  | Puro White Tri-Coat (MY 2019 name)   (pearlescent; MY 2018 – 2020)
→ →PWS (or PWW?)
→ →25D | Snowflake White Pearl Mica   @amazon

CBD5D0Grigio Chiaro | Nuovo Grigio Argento | Light Gray | Silver Metallic | Chiaro Silver Metallic (MY 2019 name)   (metallic; MY 2018 – 2020)
→ →PSP (620B)
→ →45P | Sonic Silver   @amazon

47aCeramica Gray Metallic  (metallic; MY 2019 – 2020)
→ →PAQ
→ →47A | Ceramic Metallic    @amazon

gt paintAlpi Orientali Grey  (new color exclusive to Abarth 124 GT )
→ →???
→ →


BBBCC2Black Heritage Stripe   (matte; Abarth exclusive option)
→ →QKM
→ →

Piano Black Trim & Mirror Covers
→ →
→ →A3F | Brilliant Black   @amazon

Abarth Wheels   (Gun Metal; Abarth exclusive option)
→ →607B  (Alfa Romeo’s Grigio Antracite is recommended)
→ →GMW | Gunmetal Wheel (needs to be verified)   @amazon
→ →

Classica/Lusso Wheels    (Silver)
→ →XZA-W  (Fiat code for 500 wheels; needs to be verified)
→ →

124-Spider-sideviewYou may note that there are many references to Mazda parts because the platform and a major portion of components are shared – and in many cases, the Mazda equivalents are not only more readily available, but also much less expensive
sources: Fiat500usa.com, automobile catalogowner’s manual, Tiresize.com,  mariokart, IHeartRoadsters,  Tire Rack,   Mopar Fluids Document

117 thoughts on “21st Century 124 Spider ~ Complete Specifications & Tidbits

  1. Hi, I am going to change oil in both differential and MT . I d like to have beforehands the Drain plug crush washers for the plugs .. By reading the specs posted they look to be 18mm ID/25mm OD but the link sends to a Washer Gaskets For Mazda Part# 9956-41-400 that if I am not wrong looks to be 14 mm internal diameter. Where do I misunderstand ?


    • Good catch Claudio! I’m surprised no one has said anything before. The link was from a Mazda forum reader, but I believe you are correct. I’m going to change the link to https://amzn.to/2qLVcpe , that appear to be not only cheaper, but better suited to the job as well. Please let me know how whatever you end up with, works out 😉


  2. Based on feedback from @HaZ & @Good-Win Racing, I’ve added to the Wheel & Tires Specs:

    Recommended Tire Fitment Max Sizes:

    225/45R17 (for stock vehicle height)
    215/45R17 (if vehicle lowered ≈ 1″)

    Had also added Specs for Fiat’s “Historical” wheel a few days ago, as well.


  3. [EDITED 11/25/2019]
    John M. pointed out nice alternatives to the factory side-repeater lights with removable bulb and either smoked lens or clear lens. I added to the Lights section.

    It’s also been pointed out that with some force, you can remove these lights (and the factory version) from the exterior by design:

    I just pushed the light rearward (with some force to deflect the large spring tab) & it allowed me to pull the front out & away.

    which is especially nice if the [optional Mopar] splash guards have been installed with rivets, making the fender guards difficult to be pulled aside for behind-the-panel access. [Be advised that the movement of the lamp could mar the body panel paint finish though.]


    • Hi Dan,
      sorry, but I have to disagree with that. Replaced my side repeaters with these ( https://www.zymexx.de/produkt/led-seitenblinker-fuer-mazda-mx-5-nd-rf-fiat-124-spider-und-124-abarth/ ) a few months ago.
      Opening a gap in the fender guards is actually pretty easy. They are held in place with rivets similar to the ones used on various interior panels.
      Turn the steering wheel to full lock and remove the lowermost 4 rivets. That should give you enough space to fiddle your arm in and reach the clip holding the repeater. Takes about 5 minutes per side.

      Some people on the Miata board warn about the remove-from-outside methods. Some have managed to scratch their paint cause quite a bit of dirt accumulates behind the repeaters.


  4. Added a footnote for Wheel Revs per Mile stats:

    * Data source TireRack.com; values are adjusted to reflect representative rolling radius. Manual calculation results may differ, using equation [63360/(πΦ)], where Φ is the tire’s unloaded diameter (inches), since Revolutions per mile of a mounted tire under load will generally be about 3% more than the calculated number. These are most likely the numbers programmed into the PCM, for converting ABS wheel revolution data into Vehicle Speed



  5. Thijs Helmers had to go to the store in his Abarth to get some essentials, and took a photo to document his speed along the emptied Autobahn 🙂 I’ve added it to the manual transmission section.


  6. Hi, love the site. Got me loads of info I was looking for. Only noticed one thing. The Abarth 124 Spider was delivered with 170bhp in The Netherlands and the normal one with 140bhp. Here it states it is 164/160 respectively. The gap here is way bigger.

    Are you sure this data is right? Or is a local difference?


  7. Just a small tidbit. The bolt used for the battery clamps is 1/4“ USF/BSF

    However there is a catch (at least it was a problem on my 124).
    Something wasn’t quite right with the thread for the clamp on the negative terminal. The first few milimeters seemed to be distorted so I had to use a ratchet to effectively recut the thread. The BSF nut was better at this, the USF crossthreaded immediately. Once the BSF nut fixed the the distorted part the USF also fitted.

    Positive terminal was fine from the beginning.

    Fitted a ctek comfort connector to prepare for the first winter where my spider will rest in the garage. Didn’t want to disconnect the battery for this and since the bolts are long enough just connecting it on top seemed to be a good idea at first ^^

    Liked by 1 person

  8. Hi Tobias once again 😉
    I just looked at my U.S. battery terminal clamp bolts, and a 1/4-20 nut spun on both quite nicely, so I think somebody somehow simply damaged those exposed threads. That is known here as UNC (course) thread, whereas I think BSF would be 1/4-26. What you call USF I guess? is our fine thread (UNF) which would be 1/4-28, so I imagine you simply “shaved off” the first couple of threads with your BSF nut.

    That looks like a safe, well-designed connector to have attached to your battery. This winter, I didn’t use my $5 trickle battery charger, and instead took the car out for a drive once in January, February and March – when the roads were clean and dry. Kept the proper oil pressure in the multi-air brick (although I’ve yet to have that be an issue), and this spring, I didn’t have to add any distilled water to the battery 🙂


    • Hi Dan,
      sorry to get things mixed up. Simply not accustomed to imperial sizes here in metricland 😉
      USF is of course totally wrong. UNF (1/4-28) is the correct term.

      Also tried a 1/4-20 nut but that didn’t fit as well.
      In fact i tried it in this order:
      M6 -> 1/4-20 -> 1/4-28 -> 1/4-26 -> 1/4-20(british)

      The only one that wouldn’t attempt to crossthread right from the start was 1/4-26. So i decided that a little bit of force might help and it worked out.

      Don’t know why now both 26 and 28 fit. Maybe a standard nut is just too short to make a difference here.
      Might give it a try with UNC again just for the science 🙂
      Maybe there are different versions of the battery clamp? Some with course and some with fine thread?

      Regardless i also think that the first few threads somehow got damaged.

      Well at least we can conclude that it isn’t anything metrical, which already is something unexpected for anybody non-US/UK ^^ and people should just try out which one fits on their spider.

      Regarding the Multiair Oil issue. Have to talk to my dealer about it. Owner keeps his Abarth parked during winter. Maybe he has some pro tip but my current plan is to start it up every 3 weeks or so.
      Have a little theory based on observations of the oil level but have yet to confirm it. If you do a cold start and switch the engine off before the oil has any chance to get warm it will take a lot longer for it to flow back into the oil pan.
      I think that if you switch the engine off when it is hot a lot of the oil stored in the Multiair unit will initially flow back. Over time the remainder will also flow back until it won’t start.
      Contrary, if you switch off the engine when it is still cold more oil should stay in the Multiair unit and delay the issue.
      Only a theory so far. Also it is my understanding that Fiats and Abarths use different oils so that might also have an effect.

      Used my 124 for the past 3 winters and the undercarriage takes it quite well (our roads get salted). However this spring i noticed that the paint on the welds of the rear subframe is coming off, so i have to fix this before it gets worse 😦
      Want to keep it for a long time and decided that an econobox should now take the beating.

      Also wanted the check the water levels of the battery but couldn‘t see any visible lines. Maybe i should remove plugs and shine into the chambers.


      • Well, I too stand corrected. The nuts I had were not UNC, but UNF – so 1/4-28. The drawer of nuts were mislabeled…


  9. Added note regarding Fiat’s Historical wheels today, courtesy of SpagWagonsScot, regarding the need for spacers if front wheels have Brembo brakes.


  10. In addition to adding Petronas Selenia Abarth 5W-40 oil to the approved list, I added a couple of notes to the Oil section today, to help clarify some of the confusion surrounding DIY choices.


    • Regarding the Fiat Service Repair Manual CD, I think Mopar could have done a much better job with the GUI presentation. There is a batch file (Launch.bat) that triggers your default browser to open up a web page (frontPage.htm) in the common\html folder. Most folks don’t normally set their default browser to Internet Explorer though, and this program ONLY works with IE (along with the Flash plugin), so I recommend either (1) using File Explorer to find frontPage.htm and right-clicking it to then select “Open with…” and choosing Internet Explorer OR (2) create a shortcut to your own batch file on your PC with the following modifications, that will leave your default browser alone, and invoke IE for this program only.

      @echo off
      #start common\html\frontPage.htm
      start iexplore file://%CD%\common\html\frontPage.htm


      Regarding the Fiat Wiring Information USB, I think Mopar could have done a much better job with the GUI presentation. There is a batch file (Launch.bat) that triggers your default browser to open up a web page (default.htm) in the splash folder. Most folks don’t normally set their default browser to Internet Explorer though, and although the instructions maintain that this program ONLY works with IE, I find that it seems to work with Chrome OK. If the program doesn’t behave with your browser though, I recommend either (1) using File Explorer to find default.htm and right-clicking it to then select “Open with…” and choosing Internet Explorer OR (2) create a shortcut to your own batch file on your PC with the following modifications, that will leave your default browser alone, and invoke IE for this program only.

      @echo off
      #start splash\default.htm
      start iexplore file://%CD%\splash\default.htm


      • Hi Dan,
        this workaround might also be useful for people that use the Mazda Manual. The wiring diagrams there use Adobe Flash which is disabled in nearly all modern browsers by default and is likely to be removed by the end of the year.

        After this users will likely only have MS Internet Explorer to access this information. Things might become even more difficult if Microsoft decides to also remove Flash support from IE or IE itself.
        I think the former is extremely likely since Adobe has announced EOL for Flash and will no longer offer support or security updates from 2021 onwards.

        Eventually though Mazda will have to port their manuals to use not-outdated web technologies at which point Fiat might (note the conjunctive 😉 ) also adapt it for the 124 manuals.

        Liked by 1 person

      • Microsoft has stated that they intend to “permanently kill Flash Player for Windows” via the Update process around summertime 2021. I don’t like some of the future initiatives that Microsoft has planned, and have blocked Updates for some time now. It is imperative that IE continue functioning on my PC, as that is the GUI for my Microsoft Money program. In another blog of mine, I explain how to disable Windows Updates, and this Flash kill is just another reason to keep my Windows at it’s current build.


        Cal will see in my most recent post on that blog, that I’m also going to the CEO, trying to resolve a shutdown of client data at Schwab, just as he is with FCA, trying to resolve a shutdown of Navigation map data 🙂



  11. I added a section to Wheels & Tires:

    Recommended 17″ Replacement Tires (non-competitive):
    Michelin Pilot Sport 4 215/45 R 17

    , as I’ve seen the Michelin Pilot Sports appear quite often. I also added a comparison chart of the tire characteristics, and note that these tires will fit fine with the stock rims, even if the car is lowered ≈ 1″.


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