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Gas cap not closing c320

(2003 Mercedes-Benz C320 4MATIC)
in Louisville, KY on May 11, 2010
gas cap not closing c320
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Popular Answer
on May 13, 2010
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.
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