update.
I tried a different fuel cap. This one seems to me much tighter. I actually traded it
from my E39 wagon. I also checked my OBD and all monitors have checked in with an OK.
There are no codes or pending codes. I feel that the new gas cap fixed it. Will I need to perform several drive tests to confirm my repair?
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2003 4.6is X5
2003 525it
2003 E53 X5 Standard shift
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