2012 Mercedes-Benz C-Class recalls & complaints
Source: NHTSA, updated daily. Last checked 2026-10-20. Recalls apply to specific VINs — run your VIN to confirm.
Recalls: check by VIN
Useful for owners
- OBD2 code reader — see what the car's computer is reporting
- Compact car fire extinguisher
- 2012 Mercedes-Benz C-Class owner's manual
Owner complaints filed with NHTSA
Most complained-about parts: Airbags (312), Suspension (74), Engine (71), Body / structure (62), Fuel system (38).
Complaints are unverified reports from owners. A pattern (many complaints about the same part) matters more than any single one.
Read recent complaints (8)
10/15/2026 · Fuel system
Fuel leaking in the back seat of the car
09/12/2026 · Fuel system
Fuel tank is rusting. Leaking fuel, heavy fuel smell inside cabin. My saftey and anyone around the vehicle would be at risk due to fire chance. Confirmed by independent service center Vehcile has only been inspected by me and the shop Only symptom that appeared was fuel smell in my garage and a puddle of gasoline underneath the vehicle.
08/31/2026 · Brakes
Brake line corrosion issues, related and reported along with the sub-frame assembly corrosion. After getting the sub-frame repaired XXX, corrosion and deformation of the tie rods and control arms caused vibration and noise at speed, and while cornering. Repaired XXX and vehicle inspection discovered no leaks in the corroded brake lines. After this repair,…
08/24/2026 · Suspension
The rear sub frame has rusted and part of it has failed
05/19/2026 · Fuel system
Vehicle: 2012 Mercedes-Benz C300 4Matic Sport Problem Component: Fuel / Propulsion System Safety Issue Description: My 2012 Mercedes-Benz C300 developed a serious fuel tank leak at approximately 106,460 miles which created overwhelming gasoline fumes and rendered the vehicle unsafe to operate. The gasoline fumes were extremely strong and entered the pas…
04/19/2026 · Suspension
I have a rust free, relatively lower mileage car I bought for my teen daughter. Despite being such a clean car the rear subframe has rusted and rear suspension has broke off while driving, hitting the fuel tank and is unstable. We avoided an accident but the car is not drivable.
11/24/2025 · Suspension
Mercedes of Danbury replaced the rear sub frame CODE 3441 47, since my mechanic (Newtown Auto Repair) told me that the Front subframe is in real bad shape, rotten/rusted, that it is dangerous to drive the car in this condition since the wheel and steering components are part and attached to it, the car would be out of control and all over the road any of th…
11/03/2025 · Electrical system
The taillights in my 2012 c300 was starting to go out intermittently. At first the notification came on for the brake light but the brake light kept working. Afterwards the rest of the taillights and the sidemarker light went out as well. I went to go take a look and the grounding wire was oxidated and corroded. A known issue in which there was a recall mad…