2014 Mercedes-Benz C300 Other or unknown Problems

“At first the car would have a light ticking or knocking noise after a 15-20 minute run on the highway at 70 MPH. Last week, friday evening, I started smelling smoke something like plastic, enough to make you search for the source. It seem as thought the smokey smell is coming from the inside but after opening the driverside door the burning smell is coming from under the car. On yesterday, monday, four days since I first smell of smoke, which is consistent now and looked at by a mechanic who said running over a plastic bag is the possible problem. …”

“The vehicle was parked in a driveway and the trunk was opened when the rear window shattered for no apparent reason. The window was not struck. This occurred after a 200 mile highway trip with no issues. Obviously, if this had happened on the highway it could have been a difficult situation.”

“I purchased my car one year ago from a Mercedes dealership - 8/31/2021. I brought it in for service at the same dealership a week ago and they told me the rear subframe rusted from the inside out and it FAILED inspection. The parts are $5,100 and not available until some time in Q1 2023. There is no way a car rusts from the INSIDE OUT in one year. I have another vehicle in the same driveway, same everything and there is no rust anywhere. We have had all of our cars at least 10 years. This was a new car for us. …”

“Failed component: The subframe on my Mercedes C300 broke on one side and was almost broken on the other. It would be available for inspection as it is sitting in the Mercedes dealer bone yard waiting on the part to be shipped from Germany around September 17th. It also ruined my back tires & now I have to replace them too. I understand that in the UK the Mercedes dealers are fixing this problem free of charge but there seems to be no recalls! Safety: I was entering the freeway on a rainy afternoon. My car was fishtailing very badly. …”

“This car has 63,792 miles on it and has been continuously garaged and well cared for. All maintenance has been done timely and by Mercedes-Benz of Tysons Corner (Virginia) since it was purchased there on 01/08/14. All required maintenance was completed as advised and the car was covered under a 7 year 75,000 mile warranty. …”