Used BMW X3 Air Filter

Every BMW X3 has an air filter regardless of engine — petrol, diesel, or mild-hybrid — because all internal combustion engines need filtered air to run. There are no X3 variants that were ever sold without one, so you are always looking for a real part. What varies is the filter housing design and filter element shape, which is determined by the engine fitted rather than anything else.

The E83 is the first-generation X3, built from 2003 to 2010, while the F25 is the second generation, running from 2010 to 2017 — these are entirely different engine families with different airbox designs, so the filters do not interchange. Always match the part to the generation first, then narrow down by engine code. Quoting your engine code (found on your V5 or a VIN check) to the breaker is the quickest way to get the right unit.

Yes — the 20d and 30d use different diesel engines with different engine codes, and the air filter element and housing are matched to the specific engine, not simply to the fuel type. The xDrive20d typically uses a four-cylinder N47 or B47 unit, while the xDrive30d uses a six-cylinder N57, and these take different filters. Always confirm the engine code from your V5 rather than going by the badge alone, as mid-production engine swaps within the same model mean the badge is not always a reliable guide.

Trim level makes no difference at all to air filter fitment on the X3 — xLine, M Sport, SE, and any other trim grades all use the same filter as every other car with the same engine code. The trims affect things like body styling, interior spec, and suspension tuning, none of which change the air intake system. Focus entirely on matching the engine code, and ignore the trim name when searching.

A 2018 plate X3 will be the G01, the third generation, which launched in late 2017 and replaced the F25 (2010–2017). The G01 brought new engine families including B47 and B58 units, so air filters from F25 cars are not a straightforward swap even if the engine displacement looks the same. Confirm your exact engine code with the breaker against your registration to make sure you get the matching filter for the G01 platform.

The F25 received a facelift in 2014, and while many mechanical components carried over, ancillary components including airbox details can change mid-production run. The engine code is your safest guide — if the pre- and post-facelift cars share the same engine code, the filter element itself is often identical, but confirm any housing or mounting differences with the breaker against your specific registration before buying.