Used BMW 4 Series Oil Cooler

Oil coolers are fitted to most BMW 4 Series engines, but coverage varies by variant — the higher-output petrol and diesel engines (such as the six-cylinder units and the four-cylinder turbodiesels) are the most commonly cooled, while some lower-output four-cylinder petrols may rely on a simpler coolant-fed arrangement rather than a dedicated oil cooler circuit. The engine code on your V5 or a VIN check is the most reliable way to confirm whether your specific engine was built with one. Give your engine code to the breaker and they can match the correct unit straightaway.

The F32 coupé and F36 Gran Coupé share the same platform and engine family across the first-generation 4 Series (2013–2020), so the oil cooler fitment is driven by the engine code rather than the body style — a Gran Coupé badge makes no difference here. As long as the engine codes match, the part should correspond, but confirm the exact part number with the breaker against your registration before buying, as ancillary bracket and pipe routing can vary mid-production.

The F32 first-generation 4 Series ran from 2013 to 2020, and the G22 second generation launched in 2021 with substantially revised engines and engine management, so these are not the same generation and the oil cooler is very unlikely to interchange. Even where engine displacements sound similar across generations, the internal architecture and fitment points differ. Stick to sourcing from the same generation and, crucially, the same engine code as your car.

Trim level — whether SE, Sport, M Sport, or M Sport Plus — does not affect the oil cooler; it is a mechanical component tied to the engine, not to the badge on the boot lid. What matters is the engine code, fuel type (petrol or diesel), and whether the car has a manual or automatic gearbox, as some gearbox-mounted coolers are part of the same circuit. Tell the breaker your engine code and registration and they will identify the correct unit regardless of trim.

The F3x LCI (Life Cycle Impulse) facelift arrived in 2017 and brought updated engines with revised power outputs, which means the oil cooler specification can differ between pre-facelift and post-facelift cars even on the same nominal engine size. The engine code is the safest guide here — supply it to the breaker along with your registration so they can check whether the part number changed across the facelift boundary before confirming the part.

The F30/F31 3 Series and the F32/F36 4 Series share the same underlying engine family and in many cases the same engine codes, so cross-model interchange is plausible where the engine code matches exactly. However, mounting positions, pipe runs, and ancillary brackets can differ between body styles, so this is not a straightforward yes — take the engine code from both cars and ask the breaker to verify the part numbers correspond before purchasing.