Air filter change BMW X3 2003 - 2010 | Haynes Manuals
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Air filter location
Undo the five 5mm Allen key retaining bolts
Now you can remove the engine cover - place it safely out of the way
Undo four 13mm retaining bolts on this strut
Remove the strut
now you can release the air intake
Undo two 5mm Allen key retaining bolts and then remove the second part of engine cover
Undo the five 5mm Allen key retaining bolts
Carefully lift away the air filter box
View of the air filter cover
Air filter in position
Lift out the air filter
Clean off any debris on the surface of the filter. Replace with new filter if heavily contaminated
Check air filter box for debris. Clean if required. Replace air filter
Reassemble the air filter housing