Mercedes-Benz C-Class Body & structure problems
1.35 vs. all vehicles Rising
42 of the 341 complaints about the Mercedes-Benz C-Class (12.3%) concern Body & structure, making it the model's third-largest problem area. That share is 1.4× the Body & structure share across all tracked vehicles.
42Complaints · Body & structure
12.3%Share of complaints
1.35×vs. all vehicles
15Last 12 months
0.0%Share involving a crash or fire
0Related recalls
Analysis
15 Body & structure complaints were filed in the last 12 months versus 8 in the 12 months before — up 88%.
None of these reports describes a crash or fire.
No recall campaign addresses Body & structure for the tracked model years.
By model year
When complaints were filed
Last 12 months: 15 · Previous 12 months: 8
What owners report
I own a 2020 Mercedes-Benz C300 equipped with a power trunk. On July 22, 2026, I took my vehicle to Annapolis Mercedes-Benz because the power trunk was repeatedly closing on its own while people were standing in the trunk opening.
While driving on the highway with the panoramic sunroof open, the glass suddenly shattered, sounding like a gunshot or an explosion. Shards of glass flew into the vehicle and rained down on me, creating a very hazardous driving situation.
The contact owns a 2018 Mercedes-Benz C-300. The contact stated that while driving 70 MPH South on the interstate towards Miami, the front panel detached without warning.
The contact owns a 2019 Mercedes-Benz AMG C43. The contact stated that the convertible roof headliner tension cord was frayed, and the vehicle was taken to the local dealer.
I have begun noticing symptoms of the adhesive failing, such as excessive wind noise coming from the front roof area and visible gaps/separation between the panel and the vehicle body.
2018 Mercedes C300 - a hole rusted through the rear subframe causing structural safety concerns. This car has been routinely washed weekly and the frame should not have rusted through within only 8 years. This also led to a large repair bill.
Excerpts from complaints filed with NHTSA, trimmed for length. The ODI number is NHTSA's record identifier.
Related recalls
No recall campaign addresses Body & structure for the tracked model years.
Problem areas · Mercedes-Benz C-Class
Mercedes-Benz C-Class problems, complaints & recalls by model year ›