NHTSA Complaint #11502013 — 2012 MERCEDES-BENZ C300

STRUCTURE:BODY issue reported to NHTSA

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Complaint Details

ODI Number	11502013
Vehicle	2012 MERCEDES-BENZ C300
Component	STRUCTURE:BODY
Date of Incident	January 15, 2023
Date Filed	January 16, 2023
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	OH

Consumer Description

Cradle and subframe are completely rusted out. This a widely common issue with these cars and am reading it across several forums. Other c300 owners say they have had the exact same issue and request for the MB dealership to fix it. Instead they are given a quote of nearly $10,000 to fix it. MB is responsible for this.

Related Complaints for the 2012 MERCEDES-BENZ C300

Other STRUCTURE:BODY Complaints

#11701264 — November 24, 2025 — Mercedes of Danbury replaced the rear sub frame CODE 3441 47, since my mechanic (Newtown Auto Repair) told me that th...

#11682005 — August 20, 2025 — Rear subframe rotted out and broke due to corrosion. Rear crossmember is broken and needs replaced. My safety as wel...

#11600131 — July 8, 2024 — We are having issues when braking. The backend of the car wiggles when braking hard. Shop advised that the subframe...

#11592433 — June 4, 2024 — Took my car for a doorknob repair and was told the whole subframe is rotted. They told me not to drive the car on the...

#11589443 — May 18, 2024 — This is a low mileage car with odometer reading of 25668 (less than 2000 miles per year), used sparingly and always p...

Recent Complaints for the 2012 MERCEDES-BENZ C300

#11701264 — SUSPENSION — November 24, 2025 — Mercedes of Danbury replaced the rear sub frame CODE 3441 47, since my mechanic (Newtown Auto Repair) told me that th...

#11696118 — FUEL SYSTEM, GASOLINE — October 28, 2025 — The contact owns a 2012 Mercedes-Benz C300. The contact stated the fuel tank was emitting a fuel odor. The contact st...

#11682005 — UNKNOWN OR OTHER — August 20, 2025 — Rear subframe rotted out and broke due to corrosion. Rear crossmember is broken and needs replaced. My safety as wel...

#11674095 — SUSPENSION — July 16, 2025 — Rear subframe crossmember rotting, needs replacement. It seems to be a common problem with this vehicle and the assum...

#11673323 — AIR BAGS — July 14, 2025 — I was driving normally last week when the driver's head restraint system (known by Mercedes as Neck Pro) unexpectedly...