NHTSA Complaint #11497482 — 2012 MERCEDES-BENZ C300

SUSPENSION issue reported to NHTSA

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Complaint Details

ODI Number	11497482
Vehicle	2012 MERCEDES-BENZ C300
Component	SUSPENSION
Date of Incident	November 22, 2022
Date Filed	December 14, 2022
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	MD

Consumer Description

I was driving our Mercedes Benz C300 and noticed the braking distance taking longer than normal. Also, the rear end responding differently than normal. We took our Mercedes C300 to Mercedes Benz Dealer to be serviced. The technician looked under the car and found the rear subframe rotted out. The service advisor informed us of this being a known defect. We have to be cautious about driving the car until it's repaired due to the fact of being a serious safety issue. MB needs to recall these vehicles and repair them before someone is seriously injured in an accident. Many drivers are uware their subframe has rotted out. I've taken this car to the same MB shop for 8 years and all in a sudden this comes out of nowhere.

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Recent Complaints for the 2012 MERCEDES-BENZ C300

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

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

#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...

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