Mercedes fitment is unusually strict — engine codes are tied tightly to chassis and market, and the same displacement can mean several different units. Enter your VIN before ordering; assuming from the badge is the most expensive mistake on this make.
C350, E350, ML350. Balance shaft gear wear is the known issue on early builds — check the donor.
Request photosC350, E350, GLK350. The M272 successor; addressed the balance shaft problem.
Request photosC230, C250, SLK200. Timing chain and camshaft wear worth verifying.
Request photosE320 CDI, ML320, Sprinter. Strong demand from Sprinter operators; oil cooler seals are the known weak point.
Request photosFitted across most 2005+ models. Conductor plate is the common failure — often repairable separately.
Request photosWe don't show pictures of units we haven't seen. Tell us the part and your vehicle, and we'll ask a yard that has one to photograph it for you.
More Mercedes-Benz orders go wrong on fitment than on unit quality. Three things matter more than they do on most makes:
| Chassis code, not model name | Mercedes engines are matched to chassis codes (W204, W211, W212) rather than model names. Two cars badged "E350" across a generation change take entirely different units. |
| 4MATIC vs RWD | All-wheel-drive variants use different oil pans, sumps and transmission housings. A correct engine code with the wrong drivetrain will not fit. |
| Grey import and market variants | Mercedes units sourced from European or JDM donors differ in emissions hardware and ECU coding. We flag donor origin on every listing — it matters more here than on most makes. |
Every Mercedes-Benz unit we sell carries OEMtronic's own 90-day warranty — issued and paid by us, not the yard that supplied it. If a fitment issue is ours, we resolve it; you don't chase a salvage yard in another state.
Send us the VIN and a parts specialist will confirm the exact engine family and what's available before you commit to anything.
Check fitment by VIN → Call (877) 939-0197