BMW 1 Series Air Filter Replacement Parts

Every BMW 1 Series has an air filter, so the part definitely exists across all variants. Fitment depends almost entirely on your engine code rather than the year alone — two cars from different years sharing the same engine code will typically use the same filter, while two cars from the same year with different engines will not. Find your engine code on your V5 or a VIN check and supply it to the breaker for a confident match.

The E87 (2004–2011) and the F20 (2011–2019, facelifted 2015) are entirely different generations with different engine families, so the air filters are not interchangeable. Even where both generations offered a similarly badged engine such as the 118d or 120i, the physical airbox and filter dimensions differ between platforms. Always quote your engine code and registration to the breaker so they can pull the correct filter for your specific generation.

Trim level makes no difference to air filter fitment on the BMW 1 Series — SE, Sport, M Sport, and M140i trim labels are cosmetic and equipment distinctions, not mechanical ones. What matters is the engine code underneath the bonnet; an M Sport with a B47 diesel engine takes exactly the same filter as an SE with the same B47. The only thing that would change the filter is if the M Sport badge corresponds to a genuinely different engine, such as the M140i's B58, so confirm your engine code with your breaker.

The F20 was facelifted in 2015, and while the platform remained the same, some engine codes changed around that time — for example, older N-series engines were progressively replaced by newer B-series units. If your 2015 car shares the same engine code as the pre-facelift car a breaker is offering the filter from, fitment is likely correct, but confirm the specific engine code match with the breaker against your registration before buying.

Yes, fuel type is one of the most important fitment factors for an air filter on the 1 Series, because petrol and diesel variants use different airbox assemblies and filter elements. A filter from a 118d will not suit a 118i even though the badge looks almost identical, because the underlying engines — and their induction systems — are completely different. Always tell the breaker both your fuel type and your engine code to avoid receiving the wrong part.

Gearbox type does not directly affect the air filter itself — the filter sits in the induction system and has no connection to the transmission. What matters for filter fitment is solely the engine code and fuel type, so a filter from an otherwise identical car with a different gearbox will fit correctly. Confirm the engine code match with the breaker and the gearbox type is irrelevant for this particular part.