Print this page

10.0

really awful
Crashes / Fires:
3 / 0
Injuries / Deaths:
4 / 0
Average Mileage:
30,384 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2014 Mercedes-Benz C300 engine problems

engine problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2014 Mercedes-Benz C300:

Unsubscribe any time. We don't sell/share your email.

2014 Mercedes-Benz C300 Owner Comments

problem #3

Feb 232019

C300 6-cyl

  • 34,366 miles

A D V E R T I S E M E N T S

The contact owned a 2014 Mercedes-Benz C350. The contact stated that while driving at approximately 15-30 mph, the vehicle independently accelerated. The contact stated that he was unaware of how his foot ended up under the accelerator pedal. The vehicle was then involved in a four vehicle collision. The contact stated that along with his wife who was in the car at the time, she was injured along with one other occupant of one of the other vehicles. It was unknown where the wife was seated. Medical attention was sought several days after the collision by the contact and his spouse. A police report was filed. The vehicle was towed to a towing lot. Aaa was able to retrieve data from the vehicle data recorder. The contact was informed that a comprehensive report could be attained by equipment that only the dealer or manufacturer possessed. The vehicle was not repaired. There was no diagnostic check or inspection performed on the vehicle. A dealer was not contacted. The vehicle was destroyed. The manufacturer was notified of the failure. The approximate failure mileage was 34,366.

- Simi Valley, CA, USA

problem #2

Apr 262018

C300

  • 45,785 miles
I was stopped in front of my garage (waiting for the door to go up). When I lightly pressed on the gas pedal to pull in, the engine roared and the car suddenly leaped forward at a very high rate of speed, going thru my detached garage wall. The accelerator pedal stuck and I could not get the car to stop. I have pulled into this garage thousands of times and knew this was the car. Slamming on the brakes could not stop the car because it was accelerating too quickly. Hitting the brick facade of the condominium, beyond the detached garage was the only thing that stopped the car. No airbags deployed, which I thought they should have because of the impact. Even though I only traveled approximately 30 feet, the car accelerated so quickly, it totaled the car. The car is currently under recall as of November 2017, for a steering column issue, which includes improperly grounded components and the steering column clock spring being broken issue related to the airbags deploying while driving the car. I have tired several times to have the car repaired and have been told the Mercedes dealership still does not have the part. Per the dealership and Mercedes, I was adviced I would receive a letter when it was available. I purchased the car used and have since found out since this is the third recall on this vehicle. I believe it had to be something with either the accelerator automatically engaging. It was almost like the cruise control quicked in. Since it is under recall for the steering wheel related issue, I don't know if it affected the cruise control and caused this to happen.

- Fort Wayne, IN, USA

problem #1

Apr 032015

C300

  • 11,000 miles
The contact owns a 2014 Mercedes Benz C300. When the ignition was turned to the on position and the vehicle was shifted into drive with the brake pedal depressed, the vehicle accelerated without warning. The vehicle crashed into a traffic light pole. The contact suffered lacerations to the head, muscle damage to the legs, and a fracture on the eye socket. The contact received medical attention. A police report was filed. The vehicle was towed to the contact's insurance company. The manufacturer was made aware of the failure. The approximate failure mileage was 11,000.

- Exton, PA, USA

Not what you are looking for?