Front Suspension Control Arm problems of the 2012 Mercedes Benz C300

One problem related to front suspension control arm has been reported for the 2012 Mercedes Benz C300. The most recently reported issues are listed below.

1 Front Suspension Control Arm problem

Failure Date: 08/03/2020

The rear subframe has corroded around the areas where the trailing arm and control arm meet the subframe on both sides of the vehicle, and has disintegrated around the drivers side rear trailing arm causing it to have detached, along with a piece of the subframe. The metal of the subframe is distorted around the area of the break. The detached trailing arm and piece of subframe are now making contact with the fuel tank as well. The fuel tank could have easily ruptured and ignited when this car was still in operation, as this car was driven for several days before the manufacturing defect was discovered. The failure happened when coming to a gentle stop from 20-30 miles per hour on a straight road. There was a loud snapping noise from the drivers side rear. This car had 92,000 miles at time of the structural failure and has been regularly serviced, exclusively at mercedes-benz. Mercedes-benz USA customer service is unable to offer any assistance. This exact issue has led to a recall of the same model in canada, and there are countless NHTSA reports describing similar structural failures. Mercedes-benz USA is aware of this issue and is also aware that there is a recall in canada, but has made it clear that goodwill will not be extended.


Other Suspension related problems of the 2012 Mercedes Benz C300

Suspension problems
4
Subframe/mounting Bracket problems
2
Front Suspension Control Arm problems
1


C300 Service Bulletins
C300 Safety Recalls
C300 Defect Investigations