Used BMW 3 Series Oil Pump

No — the E46 (1998–2005) and E90 (2005–2013) generations are entirely different platforms with different engines, so oil pumps are not interchangeable between them. Even if both cars share a similar engine displacement or fuel type, the pump design, mounting points, and drive arrangement differ between generations. Always confirm the engine code from your V5 or a VIN check and supply it to the breaker, as the engine code is the definitive guide here.

The E90 3 Series was facelifted in 2009, and while many engines carried over, there were running production changes that could affect ancillary components like the oil pump. The engine code is the key detail — if the donor and recipient share the same engine code, fitment is much more likely, but you should still confirm with the breaker against your specific registration as mounting or ancillary changes can occur mid-production without a clear external sign.

Yes, every internal combustion engine variant of the BMW 3 Series has an oil pump — it is a fundamental engine component that circulates oil under pressure to lubricate the engine's moving parts. It is driven either from the crankshaft or via a chain depending on the specific engine, and it is a genuine used part that breakers regularly have available. Supply your engine code (found on your V5 or via a VIN check) when requesting quotes, as this determines which pump is correct for your car.

Trim level alone does not affect oil pump fitment — an SE and an M Sport 3 Series with identical engine codes use the same oil pump. What does matter is the engine code, fuel type, and whether the car is an xDrive variant, since xDrive uses the same engine family but you should still confirm the exact engine code as some xDrive applications introduced specific engine variants. Body style (saloon, touring, coupe, convertible) has no bearing on oil pump compatibility.

The 320d and 318d use diesel engines from the same BMW family but the engine codes differ, meaning internal specifications including the oil pump can vary between them. Fitment is determined by the engine code, not the badge on the boot — a 318d and 320d can share the same engine code in some generations, in which case the pump may interchange, but in other years they do not. Give the breaker your exact engine code rather than just the model designation, and let them confirm compatibility.

In most cases the oil pump is driven from the engine itself and is not directly affected by gearbox type, so a manual and automatic car with the same engine code will generally share the same oil pump. However, gearbox type is worth mentioning to the breaker as a cross-check, since some production variants paired specific engine builds or ancillary configurations with particular gearboxes. Providing both your engine code and gearbox type gives the breaker the best chance of confirming a correct match.