Fuel smell + P0456
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Joined: Nov 2021
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2011 C300 4Matic
Fuel smell + P0456
Hey guys,
my 2011 C300 4Matic has a noticeable fuel smell outside the car whenever I fill the tank. Recently P0456 has also triggered the check engine light. I already replaced fuel cover and gasket about a year ago, but the problem persists. What could it be?
my 2011 C300 4Matic has a noticeable fuel smell outside the car whenever I fill the tank. Recently P0456 has also triggered the check engine light. I already replaced fuel cover and gasket about a year ago, but the problem persists. What could it be?
Last edited by LebBenz; Nov 27, 2021 at 02:32 PM.
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Joined: Jun 2017
Posts: 608
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From: Western NC
2009 MB C300 Sport 4matic
