The contact owns a 2019 Mercedes-Benz C300. The contact stated that the vehicle would shut off soon after being cold started with several unknown warning lights illuminated. The vehicle was towed to the dealer where a diagnostic test was performed. The diagnostic test showed that the fuel pump was defective and needed to be replaced. The contact drove the vehicle for a few days after the diagnostic test but experienced the failure a second time. The vehicle was then towed to an independent mechanic for a second opinion where the contact was given the same diagnostic result; however, the contact was informed that the vehicle was included in the federal safety agency Campaign Number: 21V961000 (Fuel System, Gasoline). The contact went back to the dealer but was informed that the vehicle was not included in the recall. The manufacturer was notified of the failure and was referred to the federal safety agency Hotline for assistance. The vehicle was not repaired. The failure mileage was 25,751
2019 Mercedes-Benz C300 fuel system complaints
Page 2 of 2: complaints 11 to 13 of 13, newest first, as owners wrote them.
When depressing the throttle, occasionally there is no response form the engine or a significant delay coupled with erratic engine revving behavior. When this happens the car has no drive power, but power brakes and steering are unaffected. The engine sits at idle speed. This has happened on multiple occasions when in or crossing traffic. The issue may present and then disappear after 15-45 seconds with no other action being taken.
I was pulling out of a parking lot onto a highway with a posted limit of 55 MPH. As I pulled out onto the highway the gas pedal just stopped working. The car was on but it just wouldn't go anywhere. A vehicle coming from my left at a high rate of speed had to put on it's brakes in order not to strike the driver's side of my door. It came within 2 feet of my vehicle. I turned off the car and restarted it. When I restarted the vehicle I turned off the "eco" button and drove a couple of miles back to my home with no problems. Note....I have no idea if the "eco" button has anything to do with it. The vehicle has been at the mercedes dealer in fort worth since saturday january 30th. They tell me they can't find anything wrong with the vehicle. I'm not sure what they expect me to do about it. The car is unsafe to drive.
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