Second Hand BMW X4 Oil Cooler

Yes, oil coolers are fitted to BMW X4 engines, though the exact type and location varies by engine — most petrol and diesel variants use an oil-to-coolant heat exchanger integrated with or mounted near the oil filter housing, and some performance variants also use a separate engine oil cooler. If you have the M40i or M Competition variant, additional cooling provisions are fitted compared to standard engines. The safest starting point is to identify your engine code from your V5 or a VIN check, as this tells the breaker exactly which unit your car needs.

Almost certainly not without modification — the F26 X4 ran from 2014 to 2018, while the G02 X4 launched in 2018 as a completely new-generation model with different engine architecture, different mounting arrangements, and updated engine codes throughout. These generations do not share mechanical components at this level, so a straight swap across the F26-to-G02 boundary is very unlikely to work. Always confirm with the breaker by quoting your full engine code and registration.

Yes, the engine code is the critical detail here — the G02 X4 was offered with a range of petrols and diesels (including the B47, B57, B46, B48, B58 family codes) and the oil cooler specification can differ between them even within the same generation. There was also a G02 LCI (facelift) update around 2021, and while many mechanical parts carry over, ancillary and mounting changes mid-production should be confirmed with the breaker against your specific registration rather than assumed.

Trim level alone does not affect oil cooler fitment — xLine, M Sport, and standard trims on the same engine are mechanically identical at the oil cooler level, so the part follows the engine code, not the badge. The exception is the M40i or M40d and full M Competition variants, which have distinct engines (for example B58 versus B48 in the petrol range) and may use a different cooler specification. Tell the breaker your engine code and they can match the correct unit regardless of your trim name.

Yes, diesel X4s such as those running the B47 (four-cylinder) or B57 (six-cylinder) engines are fitted with oil coolers, and the unit will differ from the equivalent petrol engine cooler even within the same generation. Quoting your engine code to the breaker is essential here, as a B47 unit will not necessarily be interchangeable with a B57 unit despite both being diesels in the same body. Never assume compatibility between fuel types or cylinder counts when sourcing this part.

There is a reasonable chance of compatibility where the engine code is genuinely identical, since BMW engines are shared across many models in the F and G platform families — for example, a B47 or B58 fitted in an X4 is broadly the same unit as in a 3 Series or 5 Series of the same generation. However, ancillary brackets, pipework, and mounting points can vary by vehicle application even with a shared engine code, so this is something to confirm with the breaker rather than assume. Provide both your registration and engine code when asking.