Used BMW X4 Radiator Fan

Most BMW X4 variants use an electric auxiliary cooling fan mounted in front of the radiator, so yes, the part exists on this model. However, some engine and cooling system configurations rely more heavily on the water pump and may have different fan arrangements, so the exact setup depends on your engine code. Check your V5 or run a VIN check to confirm your engine code before searching, as this is the most reliable way to ensure you're looking at the right part.

The F26 (2014–2018) and G02 (2018–present) are completely different generations built on different platforms, so their radiator fans are not interchangeable. The cooling system architecture, mounting points, and electrical connectors differ significantly between the two. Always confirm the generation of the donor vehicle matches yours, and verify against your registration with the breaker before buying.

Yes, engine code is the single most important detail here — the fan size, blade configuration, and electrical setup are matched to the cooling demands of each specific engine. A 2.0-litre diesel unit such as the B47 will have a different setup to a 3.0-litre petrol like the B58, even within the same generation. Find your engine code on your V5 or via a VIN check and give it to the breaker so they can cross-reference accurately.

Trim level does not affect radiator fan fitment on the BMW X4 — xLine, M Sport, M40i and other trims are cosmetic or chassis packages and do not change the core cooling system components. What matters is the engine code, fuel type, and whether the vehicle is the F26 or G02 generation. A breaker may supply a fan from any trim level and it should be correct provided the engine code and generation match yours.

2018 is the changeover year between the first-generation F26 (which ran until mid-2018) and the second-generation G02 (which launched from mid-2018 onwards), so your vehicle could be either depending on exact build date. This matters considerably for the radiator fan because the two generations use different parts. Check your VIN or V5 to confirm the generation and engine code, then share both with the breaker to avoid ordering the wrong unit.

In most cases the radiator fan is determined primarily by the engine code rather than whether the car has a manual or automatic gearbox. However, automatic gearboxes can generate additional heat and some vehicles have supplementary transmission coolers that interact with the main cooling fan circuit, so it is worth mentioning your gearbox type to the breaker when enquiring. Confirming both your engine code and gearbox type gives the breaker the best chance of supplying the correct part.