gas cap not closing c320
Mercedes-Benz Q&AAsk Your Question
2003 Mercedes-Benz C320 4MATIC Question: gas cap not closing c320
Answer #1JParsons May 13, 2010, 21:18Journeyman
Gas caps on these models will make a clicking sound when properly tightened. This may be deceiving because you will still be able to turn the cap. If the cap does not properly seal it will trigger a check engine light and may need to be replaced.