Loud Engine Noise Problems of Mercedes Benz C300

Mercedes Benz C300 owners have reported 4 problems related to loud engine noise (under the engine and engine cooling category). The most recently reported issues are listed below.

1 Loud Engine Noise problem of the 2015 Mercedes Benz C300

Failure Date: 07/01/2020

The contact owns a 2015 Mercedes Benz C300. The contact stated that while operating the vehicle, the check engine light remained illuminated with an abnormal sound coming from the engine. In addition, while driving the vehicle would not properly accelerate and unintentionally decelerated while sputtering. The vehicle was towed to the local dealer Mercedes Benz of wilmington located at 3801 lancaster pike, wilmington, DE 19805 to be diagnosed. The contact was informed that the engine was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 80,000.

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2 Loud Engine Noise problem of the 2015 Mercedes Benz C300

Failure Date: 03/10/2020

The contact owns a 2015 mercedes-benz C300. The contact stated that while attempting to accelerate from a stop light, a loud sound came from the engine compartment and the vehicle began to vibrate and shake before stalling. The vehicle was towed to the local dealer keeler Mercedes Benz located at 1111 troy schenectady rd, latham, NY 12110 who diagnosed that the engine was faulty and needed to be replaced. The cause of the engine failure was not provided. The manufacturer was notified of the failure. The failure mileage was 48,000. ## VIN passed ## mercedes-benz 2015 C300 amg ##.

3 Loud Engine Noise problem of the 2015 Mercedes Benz C300

Failure Date: 12/10/2019

While the vehicle in motion, hearing a loud sounds coming from the engine. At first it's sounded like a rock in a tin can, later it was a slapping sound. About 10 minutes later finally got off the highway and turned in to my neighbor hood. At the last right turn, the car seized up. Tried to restart nothing happened. Good thing it was around 11pm there was no traffic or as many cars on the road. If it were it could probably just stop on the middle of the highway. The car is at the dealership and saying it needs a new engine, costing about 13k. Which is absolutely ridiculous, there was no signs of engine problem, engine light wasn't on. Out of no where, engine locked up and I had to push it home.

4 Loud Engine Noise problem of the 2019 Mercedes Benz C300

Failure Date: 06/10/2019

Tl the contact owns a 2019 mercedes-benz C300w. The contact purchased the vehicle on April 6, 2019. On April 10, 2019 he took the vehicle back to the dealer (mercedes-benz of sarasota, 4754 clark rd, sarasota, FL 34233, (941) 275-1293) because it shook violently while driving and the engine felt like it was losing power at 20 mph. Also, an abnormal noise was heard. The dealer stated that the failures were not abnormal. The dealer test drove the vehicle with the windows up and could not replicate the failures; however, they stated that the noise was due to a design fault that occurred when the rear windows were open. The contact spoke with the state attorney general's office and was advised to pursue his concern under the state lemon law. The contact called the manufacturer and was informed that the case would be assigned to a case manager and he would be called back within 24 hours. If the issue could not be resolved, the case would be turned over to an executive investigating squad. The dealer called the contact and asked for a call back. After several attempts to call the dealer, the contact had not heard back. The failure mileage was 1,700.

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Other Common Engine And Engine Cooling related problems of Mercedes Benz C300



C300 Service Bulletins
C300 Safety Recalls
C300 Defect Investigations