Second Hand BMW 4 Series Air Filter

Yes, every variant of the BMW 4 Series has an air filter regardless of whether it is petrol or diesel, turbocharged or not — all internal combustion engines require one to clean the air entering the intake. Even the plug-in hybrid 4 Series (430e) retains a combustion engine and therefore has an air filter. If you are looking at a fully electric model you may have the wrong listing, but no fully electric 4 Series has been sold in the UK under the standard 4 Series name.

The F32 is the first-generation 4 Series, produced from 2013 to 2020, while the G22 is the second generation, launched in 2021 and still current — these are entirely different engine families and the air filter housings and filter elements are not interchangeable between them. Fitment follows the engine code above all else, and engines such as the B58 in the G22 use a different airbox design to the N20 or N55 found in the F32. Always confirm the engine code from your V5 or a VIN check before ordering, and verify the specific part against your registration with the breaker.

No, trim levels like Sport, M Sport, xLine, and Luxury do not affect the air filter — it is determined entirely by the engine code and fuel type, not the badge or interior specification. A 420d M Sport and a 420d Sport with the same engine code will use the same filter element. The trim differences between these grades are cosmetic — bodykit, interior trim, wheel design — and have no bearing on the air intake system.

Both years fall within the F32 first generation (2013–2020), and the 420d used the B47 four-cylinder diesel engine throughout most of this period, so filters from the same engine code are very likely compatible. However, BMW made running production changes during the F32 lifespan including an LCI (facelift) in 2017, and ancillary airbox components or mounting points can change mid-production even when the filter element itself does not. Check the engine code on both cars match exactly and confirm the specific part against your registration with the breaker before buying.

Body style — whether coupe, convertible (F33/G23), or Gran Coupe (F36/G26) — does not affect the air filter, as the engine and intake system are the same across body variants sharing an engine code. A 430i coupe and a 430i Gran Coupe with the same engine code use the same filter. Focus on matching the engine code from your V5 rather than the body style when sourcing from a breaker.

The xDrive four-wheel-drive system affects the drivetrain and transmission tunnel but does not change the engine's air intake setup, so an xDrive and a standard rear-wheel-drive car with the same engine code will generally use the same air filter element. That said, ancillary brackets or airbox routing can occasionally differ due to packaging constraints around the front axle hardware, so this is worth confirming with the breaker against your specific registration to be certain.