The contact owns a 2012 Mercedes-Benz C300. The contact stated that the vehicle was taken to the dealer for an airbag inspection. During the inspection, the dealer informed the contact that the rear subframe was corroded. The vehicle was diagnosed and the contact was informed that the brake lines and rear subframe needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 120,000.
2012 Mercedes-Benz C300 brakes complaints
Page 2 of 2: complaints 11 to 15 of 15, newest first, as owners wrote them.
From the mechanics notes: Four-wheel alignment could not be completed. Attempts to align the rear axle were unsuccessful due to flexing/movement in the rear suspension. A brief road test revealed occasional suspension “clunking” coming from the rear of the vehicle. Close examination of every suspension component mount revealed heavy cracking on the passenger side lower drag link subframe mount (see emailed image). The driver’s side low drag link mount location is also starting to show signs of overstress and rust/flaking. This is a known design defect that has been the subject of a manufacturer’s recall in Canada. Given the substantial safety impact of this design defect/failure, it is expected that a US recall will be forthcoming. Proper repair of this failure involves removing the entire rear axle/subframe assembly and either rebuilding/re enforcing the subframe or replacing it with a new unit and transferring all the suspension components to the new subframe. A current check of subframe availability is showing NLA (no longer available) status from Mercedes wholesale dealers – likely due to recent high demand and inability to satisfy that demand. This supply issue may also be playing a role in Mercedes’ failure to address this high level safety issue with a US based recall campaign. The manufacturer may be ramping up production of this component to address anticipated need – waiting to announce a recall when it has sufficient parts on hand to execute the campaign. It is strongly recommended that you file an the federal safety agency complaint for this issue and limit driving until the problem is rectified either independently or under the auspices of a recall campaign. The passenger side rear drag link has not yet completely separated from the subframe but is likely to do so soon which can result in an accident or loss of control as this critical suspension link is responsible for maintaining steering direction of the right rear wheel.
The rear drivers side had a loud chunking/clanking noise while driving and the vehicle was unable to control and break when in motion. Driving was impossible as the breaking component was a total failure and car could not be controlled while traveling down 45-50mph zone. I reduced my speed to 20-25 mph by letting off on the gas to get better control of the car if breaking would need to be suddenly made. I relied on the shoulder to pull off if any sudden breaking was needed. The car was immediately take to be reviewed by a specialized Mercedes benz mechanic and further inspection proved that the rear subframe on the driver’s (left) side was corroded and broken. The connecting arms are rusted, corroded and rendered the car inoperative. I notified my insurance company as well as car manufacturers corporate office. I researched this issue further and discovered that this reoccurring issue with this make and model. There are a pheletera of recounting of this same issue on various message boards to validate the same issues and callouts I found. The car was taken to the dealership that it was purchased and further inspection showed that the left side subframe/ subframe arms were corroded with rust and broken. The brake lines and fuel tank were equally rusted and corroded. The service manager confirmed that this is defect of the car but it had been part of a recall. I had the car towed for 2nd opinion to another dealership service department to access the car and this callout further validated the corrosion and rust was wide spread and has rendered the car inoperable unless these damages were fixed.
My vehicle was damaged by k and h auto. The electrical unit is malfunctioning, the light is broken on the right side, and the rotors and brakes have been rusted, please have someone attend to this matter. Thanks, and have a very blessed day. Another company by the name of ans towing, towed my vehicle without care and I am now having acceleration issues with my vehicle. The vehicle was dragged through water on october 17-18, 2018.
I made a sharp turn into a parking area then another sharp turn into the parking space and when I straighten the wheel out to complete parking an applied my foot on brake the pedal went to the floor and car would not stop the only thing that stopped me was the concrete curbing which I hit hard and damaged the under carriage of my car. The tires hitting the concrete is made forced car to stop. I contacted dealership to report the problem and see if they could tow vehicle and provide me with a car since I was stranded. They were closing and couldn't help me. Had the vehicle checked to see if a brake line had broke or if brake fluid level was ok, everything checked out ok drove car home very slow noticed car having a message on dash hold when I apply brakes and a message ( p shift in park) came on dash as I was driving. This had never happened before this incident occurred. Called dealer the following morning and had car towed to them. 5 days later they tell me that they cannot find anything wrong with my brakes and my car is safe. I am not driving the car I will be having it towed. There is something wrong with the brakes and I do not feel I should have to put myself or anyone else on the road at risk for losing there life. Just because they cant find anything it doesn't mean there isn't anything wrong. I have researched on the internet about the car I own and I have seen many people with the same problem as mine. I have not had the car but for 2 months. This is a safety issues and it seems as the manufactures of the vehicles being made don't have to back there products unless someone is killed.
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