2014 MERCEDES-BENZ E350 Complaints

The contact owns a 2014 Mercedes-Benz E350. The contact stated while driving at an undisclosed speed, the power steering warning light illuminated. The vehicle was taken to the dealer where it was diagnosed that the rack and steering assembly had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline for further assistance. The approximate failure mileage was 85,000.

Driving home on a 30MPH street, had the brake light go on and felt the brake petal sink to the floor when I had to stop. Very concerning was grateful I wasn’t going faster. Cautiously made it home, and when I took it to the shop, they diagnosed that the brake lines had corroded. This is a huge safety concern and should be a recall as it could be fatal in certain circumstances.

The contact owns a 2014 Mercedes-Benz E350. The contact stated that there was an abnormal fuel odor inside and outside the vehicle. The contact was informed by his wife of the failure, but recently the fuel odor had become more prominent. There was no warning light illuminated. The vehicle was taken to an independent mechanic where the contact was informed about a fuel leak. The fuel tank access underneath the rear seat had leaked fuel into the interior and exterior of the vehicle. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 80,000.

The contact owns a 2014 Mercedes-Benz E350. The contact stated while driving at an undisclosed speed, the contact noticed a fuel odor coming from the exterior of the vehicle. In addition, the contact stated that the fuel odor was around the exterior of the vehicle while the vehicle was parked. The contact stated that the failure was persistent. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was made aware of the failure. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 100,000.

Rear brake lines have rusted out causing a safety concern. Mercedes will not extend the warranty to repair the recognized inferior parts as they did for the rear subframe. The rusty rear brake lines are related to the rusted subframe which was repaired under extended warranty by Mercedes at no cost. The same should apply to the rear brake lines. I am currently having the rear brake lines replaced due to this rust and safety issue. Please require Mercedes to extend the warranty and related repair to the rear brake lines as it is systemic to these cars.

While driving in stop and go traffic I heard a loud popping noise from the dash area and smoke started filling the cabin. I called a DC area dealer service dept and was told to exit the DC beltway and un plug the audio amplifier in the trunk left access door That stopped the popping noise and the smoke .

The heater temperature is not consistent and keeps fluctuating. When I set the temperature to 80°F, it initially blows hot air, but after about 10 seconds, it starts blowing colder air. To get consistently hot air, I have to set the temperature to the maximum.

The emergency brake often gets stuck, especially on cold days. I have to repeatedly push and release it or manually adjust it by pushing behind the brake to return it to the release position. This problem starts on 28000 Mile on this car

As I went to have my vehicle inspected, the mechanic advised me that it could not be inspected, that the car is totaled because the rear subframe is all rotted and the brackets holding the trailing arms were broke off and said that this was a common problem with these vehicles.

10/14/21 Was cautioned that the rear brake lines and caliper hoses were very corroded. Mileage 43,185 10/19/22 Cautioned about rear brake lines. Mileage 48,459 12/11/23 Rear brake lines replacement cost $4497. Repair not done at that time. Mileage 53,375. Again cautioned. 10/30/24 service date- Was informed that the rear subframe was corroded and would be replaced by Mercedes-Benz. I have photos from the dealer. There are holes in the rear subframe.The brake lines could be replaced at the same time at a cost of $2820 due to the fact it is in same area. Mileage 58,597 I asked M-B Customer Service to cover the rear brake lines as the under coating was not sufficient to protect the rear subframe and brake lines. They rejected my claim. I was told others have also tried to get M-B to cover this cost and were rejected. My vehicle has very few miles for its age. I have never had to replace rear brake lines in the 40 years I have owned a Mercedes Benz vehicle. I believe that they have not adequately protected the undercarriage from weather. The rear subframe is my evidence. At some point these brake lines could fail. They will be replaced. I want the manufacturer to cover the cost of the brake lines when the rear subframe is replaced. Please advise.