Second Hand Fiat 500X Glow Plugs

Glow plugs are only found on diesel engines, and the Fiat 500X was sold in the UK with both petrol and diesel variants, so glow plugs do exist on this model – but only on the diesel-engined versions. If your 500X runs on petrol, it uses spark plugs instead and never had glow plugs fitted. Check your V5 or a VIN check to confirm whether your engine is diesel before searching for this part.

The engine code is the single most important detail when buying glow plugs, because different diesel units – such as the 1.3 Multijet and 1.6 Multijet variants fitted to the 500X – can use different plug specifications even if they look similar from the outside. Your engine code is stamped on the engine block and also listed on your V5 registration document or via a VIN check. Always give the breaker your full engine code rather than just the engine size, as this is what determines the correct plug.

The Fiat 500X ran from 2014 onwards, with a facelift arriving for the 2018 model year that brought updates to styling and some mechanical areas. Whether glow plugs cross that 2018 boundary depends entirely on whether the diesel engine code remained the same on both sides of it – if the code matches, the plugs are very likely compatible. Confirm this with the breaker against your specific registration before purchasing, as ancillary components can change mid-production without a formal facelift.

Trim level makes no difference whatsoever to glow plug fitment on the Fiat 500X – whether you have a Pop Star, Lounge, Cross, Cross Plus, or any other trim, the plugs are determined entirely by the engine code and fuel type, not the badge on the tailgate. You may find differences in cosmetic or comfort kit between trims, but the diesel engine internals are the same across equivalent engine variants. Just supply your engine code and the breaker will match the correct plug.

The number of glow plugs matches the number of cylinders – the 1.3 Multijet is a four-cylinder engine requiring four plugs, and the 1.6 Multijet is likewise a four-cylinder unit also requiring four. It is generally recommended to replace all glow plugs at the same time rather than just the failed one, since the remaining plugs will be the same age and equally likely to fail soon. Buying a full set from a breaker is usually straightforward and more cost-effective than sourcing individual plugs.

Although the 500X shares some platform and powertrain DNA with other Fiat models, glow plug compatibility across different models depends on whether the exact engine code – and therefore the plug specification – is identical, not on the Fiat badge. Some Multijet engines were shared across the Fiat range, so there is a possibility of crossover, but you should never assume compatibility based on engine size or brand alone. Give the breaker both your 500X engine code and the code from the donor vehicle, and let them confirm whether the plugs are a genuine match.