Mercedes-Benz GLE Fuel Injector Replacement Parts

Fuel injectors exist on all GLE variants regardless of engine, because both petrol and diesel engines use them — petrol engines use port or direct injectors, and diesel engines use high-pressure common-rail injectors. However, the injector type, fuel pressure rating, and connector design differ significantly between petrol and diesel units, so a diesel injector will never interchange with a petrol one. Always confirm your fuel type before requesting quotes from a breaker.

The GLE W166 ran from 2015 to 2019 with a mid-cycle refresh around 2018, and fitment of injectors within that generation is primarily governed by engine code rather than build year or facelift status. Injectors for the same engine code — for example the OM651 diesel or M276 petrol — are likely to be consistent across the W166 run, but confirm with the breaker against your registration because ancillary changes mid-production can affect part numbers. Your engine code from your V5 or a VIN check is the most useful detail to supply.

The W167 is a completely different generation from the W166, with new engine families introduced, so injectors from a W167 will not generally fit a W166 even if the displacement sounds similar. Engine codes changed across the generation boundary — for instance the OM656 diesel and M256 petrol are W167 units not shared with the W166 — so cross-generation fitment is very unlikely. Always quote the breaker your exact engine code rather than the badge or engine size.

No, trim level has no bearing on fuel injector fitment for the GLE — AMG Line, Sport, and SE are cosmetic and equipment packages, not different engine specifications. What matters is your engine code, fuel type, and model year, all of which determine the injector spec. Confirm your engine code from the V5 before approaching a breaker and ignore trim entirely when sourcing this part.

The 350d and 250d use different engines — the 350d uses a six-cylinder diesel (OM642 in the W166) while the 250d uses a four-cylinder diesel (OM651 in the W166) — so their injectors are not interchangeable despite both being diesel units. Engine displacement and cylinder count drive different injector specifications including pressure ratings and connector types. Always cross-reference engine codes with the breaker rather than relying on the badge alone.

This is an important consideration with modern diesel and direct-injection petrol injectors, as some systems use injector-specific calibration codes that need to be programmed into the ECU after fitting. Whether coding is required on your specific GLE depends on the engine and the diagnostic equipment available — this is something to confirm with your fitting garage or the breaker before purchasing a used injector. A reputable breaker should be able to advise whether calibration data is available with the part.