Fiat 500 Motor Mount: Specs, Fitment & Common Faults

A genuinely serious, real warning: a clunk during acceleration/deceleration transitions can be an early sign of the motor shaft's splines wearing down, a distinct fault from a worn mount that can progress to a sudden shudder with no further warning.

Generation covered: this guide is for the fully electric Fiat 500 (2020–present), with particular focus on 2020–2023 registered examples now old enough for parts to be a common search. This is an entirely different car from the previous petrol 500 (2007–2024), sharing no mechanical parts with it despite the similar styling — check your logbook or VIN if you're unsure which one you have.

Illustration for editorial purposes

A Genuinely Serious, Real Warning Worth Knowing on This Electric Model

This is genuinely important to understand before assuming a clunk during acceleration or deceleration is simply a worn motor mount: on this specific electric drivetrain, a clunk felt specifically when the direction of torque transfer changes — accelerating to decelerating or vice versa — has been documented as a possible early warning sign of a more serious, distinct fault: the splines wearing down on the electric motor's output shaft where it mates with the gear inside the reduction gearbox. This is a genuinely different issue from a simple worn motor mount, and worth having properly diagnosed rather than assuming a mount replacement will necessarily resolve it.

A genuinely important safety-adjacent point worth knowing: in documented cases where this specific spline wear has progressed to failure, owners have reported no advance warning beyond the clunk itself, with a sudden, noticeable shudder occurring when shifting into drive or reverse once the wear finally causes the components to fully disengage. If you notice this specific torque-transition clunk on an electric model, it's genuinely worth having the drivetrain properly inspected rather than assuming it's cosmetic, given how this specific fault has been documented to progress without further warning.

It's also genuinely worth knowing that motor mounts on this specific electric model can be genuinely expensive parts — worth having a proper diagnosis to confirm which specific mount, or whether the drivetrain itself, is actually responsible before ordering a replacement, since getting this wrong risks an expensive, unnecessary purchase.

OEM Part Numbers

Accuracy note: we weren't able to verify a confident FA1-specific (European electric 500) motor mount part number at the time of writing. Please confirm the correct part via a Fiat dealer or parts specialist using your VIN.

Because the electric motor is a genuinely different weight and shape to a combustion engine, mount design and location differ from the equivalent petrol-era 500 despite the shared exterior styling — don't assume any part interchangeability between the two, since they're mechanically unrelated cars underneath.

What It Does

Motor mounts secure the electric motor to the chassis while absorbing vibration and movement, preventing that vibration from transferring directly into the cabin. Most versions of the electric 500 use several mounts working together — typically at least one on each side of the motor plus a torque mount — and a single failed mount can throw off the whole assembly's balance.

Fitment & Compatibility

Mount design and positioning can differ between trim levels of the electric 500. Always confirm the exact mounts fitted to your specific car before ordering. Whether you're sourcing a replacement motor mount for your Fiat 500 from a dealer, specialist, or online marketplace, always check compatibility against your registration or VIN before buying, and confirm you're ordering the correct side — driver's side (RH in the UK) or passenger side (LH in the UK) — since these are not interchangeable.

Symptoms, DIY Difficulty & Aftermarket Advice