2012 Mercedes-Benz ML350 problems

Filed Jul 13, 2026 · Brakes, Steering · 122,000 miles · PA

The contact owns a 2012 Mercedes-Benz ML350. While the contact’s wife was driving approximately 30 - 35 MPH, the message "Do Not Drive Vehicle" was suddenly displayed. The vehicle was taken to a mechanic, and the brake fluid reservoir was topped off. The mechanic was unable to find any leaks. The vehicle was not diagnosed or repaired. The message turned off and was displayed again 4 hours later. The contact was called by his wife, and the vehicle was driven to the residence after the brake fluid reservoir was refilled. The contact stated that a half mile later, the message was displayed again. The vehicle was driven to the residence and parked. The dealer was contacted and confirmed that there was no recall associated with the VIN related to the failure. The manufacturer was not made aware of the failure. The failure mileage was approximately 122,000.

Filed Apr 14, 2026 · Fuel system · NM

Engine stalled driving on interstate highway at 70mph. Mechanic diagnostic indicated to be faulty fuel pump and/or fuel pump control unit. This issue has been recognized by mercedes benz as a faulty issue and subject to recall. Upon calling mercedes benz dealer was told there was no recall on this matter for my vehicle contradicting this issue previously recognized by mercedes benz.

Filed Jan 23, 2025 · Electrical, Engine · TN

My name is [XXX] My vehicle cut off on me 3 times twice while stationary and once at an intersection. Found oil in engine control module due to failed cam position sensors. Oil has traveled through the engine harness to ECM causing oil to get into module and cause it to shut down but it did start back up. This is very dangerous and could cause serious injury to someone. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jan 6, 2025 · Fuel system · SC

Vehicle stalled without warning, and I was advised by a mechanic that the fuel pump control unit was reporting a fault through the onboard diagnostics port and the check engine light on the dashboard. It was necessary to replace the fuel pump control unit as the defect was intermittent and subject to occur at any time the vehicle was being driven. There is no available solution save the replacement. I had the fuel pump control unit replaced at my cost and after replacing it found information concerning the federal safety agency recall campaign online. The defective fuel pump control unit was discarded upon replacement and is not available for inspection. I believe the failure of this fuel pump control unit is a direct result of the recall not being complied with. I believe the manufacturer; Mercedes Benz USA is responsible for my costs expended in repairing this defect under the recall campaign because they did not notify me of the recall. I purchased this vehicle from an authorized Mercedes Benz USA dealer, my personal contact information is a matter of record of the sale, and I believe Mercedes Benz USA had a duty to contact me concerning the federal safety agency recall campaign #2023010002 concerning this vehicle.

Filed Dec 8, 2024 · Driver assistance, Seat belts · MI

The driver's seat belt is locked and the retractor is not working without any reason. The front adaptive cruise control radar is also not working, along with the crucial blind spot sensor. Because of this, the vehicle cruise control (even without adaptive mode) is not working at all. This is a big safety issue and it is illegal to even drive this car without the seat belt working.

Filed Dec 2, 2024 · Engine · 65,000 miles · NY

The contact owns a 2012 Mercedes-Benz ML350. The contact stated while driving uphill at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. In addition, the contact stated that the vehicle was shaking abnormally. The contact stated that the abnormal shaking occurred at various speeds. The vehicle was taken to the dealer where it was diagnosed with timing chain failure. The contact was informed that the timing chain needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure but provided no assistance. The contact was advised to contact the federal safety agency Hotline to report the failure. The failure mileage was approximately 65,000.

Filed Nov 15, 2024 · CA · fire · 1 injury

My wife was driving home from shopping and noticed an accumulation of dust on the rear window. She used the rear wiper to clean it but it came right back, she repeated twice and gave up. Approx 3-4 miles later she heard a POP and red lights came on the dash, when she pulled over ASAP in a safe spot smoke started coming from under the hood. She shut the engine off and tried to exit the car to find the hood release under the dash but there was fire coming out from under the car. She closed the door, grabbed her purse and cell phone and got out quickly as possible, burning her ankle and singing her long skirt. She got approx 50 feet away, looked back and the entire car was ablaze, centered mid vehicle, as well as 4-5 spot fires along the road she had just traveled. Previous to the POP the car was driving, steering, and braking normally, no warning lights of any kind. Visiting the site the next day revealed sound deadening/insulation material in and along side the roadway for 2-300 yards as well as dripping molten aluminum, corresponding to the area traveled after she first heard the POP. The vehicle had extensive repairs of cascading failing emissions system components only 7-9 months earlier, culminating with 42 days at Mercedes San Rafael where one component after another failed and was replaced. Myself and all knowledgeable persons i talk to assume it was an overheated catalytic converter that caused the problem. So far Mercedes has not been aggressive i trying to determine the cause. I've hired a forensic company and a joint inspection is pending. Cal Fire was able to contain the vegetation fire started by the vehicle at 85 acres, known as the Veteran's Fire-Igo as it occurred near the Veteran's Cemetery, using multiple fire engines, bulldozers, helicopters and a boride bomber. We are thankful she was alone in the car at the time without grandchildren buckled into car seats in the back or the results surely would have been much more tragic.

Filed Jul 22, 2024 · Lights · NJ · crash · 2 injuries

My indicators stopped working a month prior to accident, then they started working again. On March 10th the issue happened again where I turned my signal on and no light appeared and no light on the dash with the indicator sound either. Boom, I had sideswipe someone on a major road causing an accident. the federal safety agency needs to do something about this because corporate won’t do anything!

Filed Jul 22, 2024 · Electrical, Lights · MD · crash

Turn signals will not operate, dealership quoted me $1400 3 years ago, had the work performed and now the issue is happening again and I am being quoted the same amount of money. This is a safety concern if I cannot signal to others where I am turning!!!!! This could cause an accident!!!!! This is highly unsafe!!! What if my kids were in the car?! Talking to customers in waiting lounge at dealership other people have had same issue!! The one time they stopped working I had a person hit me going 30 mph, could have been much much worse.

Filed Jul 16, 2024 · Lights, Steering · MD

Steering column module is intermittently not working as intended, therefore the blinkers will sometimes not work causing it to be a safety concern if I can not signal where I am going. When looking this issue up online I have seen numerous different forums and posts where people have had the same issue. When I took my vehicle to the dealership they had told me that this is very common with the vehicle I have and they do the fix all of the time, just for the issue to happen yet again later down the road.