A failed fuel cap can cause a check engine light. If the seal is bad enough it can cause you to fail emissions testing as well. Turner Motorsport carries Genuine BMW caps that fit perfectly and seal your tank properly.
This gas cap fits BMW E53 X5 3.0i 4.4i 4.6is 4.8is from 2000-2006 and Z4 2.5i 3.0i 30.0si M Roadster M Coupe 2004-2008. A faulty gas cap can often be the cause a fault code and trigger a "check engine" light. This item fits the following BMWs: 2000-2006 X5 BMW X5 3.0i X5 4.4i X5 4.6is X5 4.8is 2004-2008 Z4 BMW Z4 2.5i Z4 3.0i Z4 3.0si Z4 M Roadster M Coupe
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