Mercedes-benz Ml-class Engine Problems
103 owner complaints filed with NHTSA across 4 model years.
Complaints by Year
Worst year: 2012. Best year: 2013.
Owner Reports
A representative sample of complaints filed with NHTSA.
The engine locked up after blowing the top part of the engine off, fire shot out of the engine and quickly went out like a flam thrower. I was driving on the expressway when the accelerator would not work without any warning I didn’t h...
MY WIFE WAS DRIVING MY ML350 ON THE FREEWAY WITH MY 7 YEAR OLD SON IN THE BACK. SHE SAID THE VEHICLE STARTED TO SHAKE IN AN UNUSUAL WAY SO SHE DECIDED TO GET OFF AT THE NEAREST EXIT AND WHEN SHE APPLIED THE BRAKES ON THE OFF RAMP THE CA...
TOOK OUR 2012 MERCEDES-BENZ ML350 BLUETEC TO THE DEALERSHIP NUMEROUS TIMES DUE TO AN OVERPOWERING FUEL SMELL AND BURNED PLASTIC IN THE CABIN OF THE VEHICLE. WE HAD TO STOP SEVERAL TIMES BECAUSE WE FELT SICK AS IF WE WERE GOING TO PASS O...
I WAS DRIVING ON THE HIGHWAY AT 70 MPH, THE CHECK ENGINE CAME ON AND ABOUT 5 SECONDS LATER, A LOUD NOISE CAME PROBABLY FROM THE ENGINE. THE CAR THEN STARTED JOLTING BACK AND FORTH; I HIT MY HEAD ON THE STEERING WHEEL TWICE AND GOT ALMOST...
WHEN THE VEHICLE'S PARKING MECHANISM IS ENGAGED, THE VEHICLE ROLLS SEVERAL FEET BEFORE COMING TO A COMPLETE STOP; THEREBY ENDANGERING ANYONE IN, NEAR, OR AROUND THE VEHICLE AT THAT TIME FROM GETTING RUN OVER OR, SERIOUSLY INJURED BY THE ...
NHTSA VEHICLE SAFETY COMPLAINT SUPPORTING STATEMENT Vehicle: 2013 Mercedes-Benz ML350 I am submitting this complaint regarding a continuing safety concern involving water intrusion and electronic system damage in my 2013 Mercedes-Benz ...
Re: My 2013 ML350- Intermittent Start/ Vehicle cutting off while in heavy traffic. Fuel Pump and Fuel modulator failed due to water collecting in the spare tire wheel-weld causing water intrusion into the fuel system. I paid out of pock...
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 CALL...
On December 6, 2025 I purchased a used 2013 Mercedes-Benz ML63 AMG from Jaguar Land Rover Willow Grove (Piazza Auto Group) in Pennsylvania. The delivery documentation for the vehicle included a written service commitment stating: “Rep...
The contact owns a 2013 Mercedes-Benz ML350. The contact stated that while driving approximately 40 - 45 MPH, the vehicle stalled in the middle lane. The driver was able to push the vehicle safely to the roadside. There were no warning l...
As we were driving 50mph, the car stalled and lost all power. The dashboard lights all lit up and the car wouldn't start. I don't get unnerved easily and it was fairly intense not being able to move your car out of traffic. After about 5...
Fuel system failed carbon and shut off without any notification while driving two times put me at risk of getting hit both times as the vehicle was not in a safe spot. This has been confirmed at the dealership where my vehicle is at this...