E-Class Coupe (C238) & Cabrio (A238) 2017 - E200, E220, E300, E350, E400, E450 [Coupes &Cabriolets]

A crack in my coupe

Old Aug 25, 2025 | 10:49 PM
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Lobsterotter's Avatar
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E450 C238 2022; 300E W124 1993
A crack in my coupe

My 2022 E450 coupe has developed a cracking noise. It is triggered by torsion of the body, such as turning into an elevated driveway which induces a twist in the body. This crack can occur on either side and is just behind the door in the panel near the seatbelt valet as best as I can tell. The sound is not low pitched nor high-pitched. It’s best described as a single crack or creak. It never occurs on smooth roads, driving in a straight line or on curves, even with hard cornering. It is not particularly triggered by hitting bumps.
Does anyone have an idea of what it is, where it is, and how to fix it?
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Old Aug 26, 2025 | 06:52 AM
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Originally Posted by Lobsterotter
My 2022 E450 coupe has developed a cracking noise. It is triggered by torsion of the body, such as turning into an elevated driveway which induces a twist in the body. This crack can occur on either side and is just behind the door in the panel near the seatbelt valet as best as I can tell. The sound is not low pitched nor high-pitched. It’s best described as a single crack or creak. It never occurs on smooth roads, driving in a straight line or on curves, even with hard cornering. It is not particularly triggered by hitting bumps.
Does anyone have an idea of what it is, where it is, and how to fix it?
look up fixing panoramic roof creaking. This would be my first guess. I don’t have the same model, but this happens across various models. After I did the fix the creaking has never come back and I have an off camber driveway that could/would cause the same torsional issue.
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