What 66 owners told NHTSA about the 2015 Mercedes-benz Ml-class

Cam Shaft replacement diagnosed after week and half visit to Mercedes Benz dealership for engine rattling at cold start up. We are left with a $10,000 repair after performing all scheduled maintenance at the Mercedes Benz dealership since owning in 2015.

NHTSA ODI 11676806

precense of some liquik oil from up motor litle meiby ist because change oil because i buy recently , i need observed ,ore time today i clean this area.

NHTSA ODI 11565307

The cam shaft adjuster failed, causing a loss of power in the engine. Vehicle could not maintain speed on hills or merge onto interstates in this condition.

NHTSA ODI 11522582

Engine stalled multiple times even though it has been serviced multiple times at multiple dealers.

NHTSA ODI 11517158

I took my car in for a different repair and they found this issue as well. "Diagnostic - Oil leak (Visual): front covers leaking oil down front of engine." The leak was due to a crack in the sealing cap. My car 2015 Mercedes ML350 4Matic is in the recall for 2018070015 but my VIN number was not included in the recall although I am having the exact issues the recall covers. Recall 2018070015 "correct oil level as necessary and replace the reservoir sealing cap to prevent oil foam from leaking out."

NHTSA ODI 11508373

There is a recall for this significant safety risk. I contacted my local Mercedes Benz about recall remedy on 6 January 2023 and they confirmed the recall and said MB would issue steps to get this taken care of in the beginning of February. It is now 18 February 2023 and this has not happened and I have received no communication from MB and yet the safety risk still exists and could be life threatening.

NHTSA ODI 11507997

My viechle is loss of propulsion without warning on the freeway last week on a raining day. After brought the car to West Covina Dealer inspected the car is leaking water that has entered the spare wheel well, the accumulated water could intermittently contact the fuel pump control unit caused loss propulsion. And there are some circuit boards and wires damaged due to a water leak and not drive able. The West Covina MB dealer is refuse to fix until MBusa responsible for the cost. Please help what other option we have about this issue?

NHTSA ODI 11502923

The contact owns a 2015 Mercedes-Benz ML350. The contact stated while driving at an undisclosed speed, the engine seized without warning. The vehicle was towed to the local dealer where it was diagnosed there was a possible mechanical break down due to engine sludge, ignition varnish rust, corrosion, dust, cracked rubber, dry rot, road chemicals, alterations or improper oil, coolant, fuel, or lubricants. The vehicle was not repaired. The manufacturer was not contacted. The approximate failure mileage was 70,273. The contact stated that they did not submit this complaint and the vehicle actually belongs to another individual.

NHTSA ODI 11487180

The Adblue blue malfunctioned and the engine oil cooling is leaking. Also the axle is leaking. This was a previous recall on this specific vehicle and it continues to be an issue

NHTSA ODI 11482258

TL* THE CONTACT OWNS A 2015 MERCEDES-BENZ ML250. THE CONTACT STATED THAT THE ENGINE DEVELOPED A DIESEL FUEL LEAK OVER THE MOTOR, WHICH RAN ACROSS THE ENGINE. THE MOTOR WAS SOAKED WITH DIESEL FUEL. ALSO, WHILE DRIVING, THERE WAS AN ODOR OF FUEL INSIDE THE VEHICLE. THE CONTACT DROVE HOME AND CALLED VALLEY IMPORT (402 40TH ST S, FARGO, ND 58103, (888) 929-9843) TO SCHEDULE AN APPOINTMENT. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE TECHNICIAN FOUND DIESEL FUEL ALL OVER THE ENGINE AND THE PAN UNDER THE ENGINE WAS FILLED WITH FUEL. THE CONTACT STATED THAT THE FUEL SOAKED UP ONE OF THE ENGINE MOUNTS. THE VEHICLE WAS IN THE PROCESS OF BEING REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 30,000.

NHTSA ODI 11267649

AT ABOUT 50,000 MILES, NOTICED ENGINE LEAKING OIL EHILR CAR WAS STATIONARY. DIAGNOSED AT DEALERSHIP AS " OIL SEAL" AND REPAIRED. ONLY TO LEAK AGAIN 2 MONTHS LATER. REPLACED AGAIN AT DEALERSHIP. WAS TOLD ITS NOT NORMAL BUT IT CAN HAPPEN.

NHTSA ODI 11222744

VEHICLE PURCHASED NEW 16K MILES ON IT NOW ALL WORK DONE AT DEALER, SHUTS OFF RANDOMLY WITH NO WARNING AT STOP IDLE OR HIGHWAY DRIVING. EXTREMELY DANGEROUS I HAVE TAKEN IT TO THE DEALER 4 TIMES FOR THE SAME ISSUE. THE DEALER HAS UPDATED SOFTWARE THEY SAID SHOULD RESOLVE PROBLEM. THIS INTERMITTENT PROBLEM HAS OCCURRED AGAIN AND NO CODES FOUND BY THE DEALER. MERCEDES BENZ USA ATTEMPTING TO FIND RESOLUTION BUT WON'T SEND OUT AN ENGINEER SINCE DEALER CAN'T REPLICATE THE PROBLEM. VERY DANGEROUS SITUATION FOR ME AND MY FAMILY AND OTHERS ON THE ROAD........

NHTSA ODI 11018897

DRIVING VEHICLE ALL DAY NO PROBLEMS .IT JUST TURNED 20,000 MILES. WAS DRIVING ON ROAD WHEN VEHICLE STARTED SURGING, LIKE OUT OF FUEL, WENT DOWN ROAD A LITTLE FURTHER AND IT HAPPENED AGAIN .THIS TIME I SMELLED STRONG DIESEL FUEL FUMES. SMOKE STARTING COMING OUT FROM UNDER HOOD. . I PULLED OFF ROAD AND SHUT CAR OFF. I OPENED HOOD LOTS OF SMOKE AND ENGINE COMPARTMENT COMPLETELY SOAKED WITH DIESEL FUEL ! HAD TO CALL ROADSIDE ASSISTANCE. GOT TOWED IN TO MERCEDES BENZ OF NORTH HAVEN CT. SERVICE DEPT TODAY SAYS LOOKS LIKE A RODENT CHEWED SOMETHING IN YOUR ENGINE COMPARTMENT. AND THAT CAUSED YOUR FUEL LEAK. THEREFORE WE ARE NOT COVERING ANYTHING UNDER WARRANTY. IT WILL COST ABOUT $4500 TO FIX .THIS IS RIDICULOUS AND VEHICLE IS UNDER FULL WARRANTY AND EXTENDED WARRANTY ! I WAS DRIVING THIS CAR ALL DAY .IT BROKE DOWN AT 2:30 IN THE AFTERNOON..MERCEDES BENZ IS LUCKY THE CAR DIDN'T CATCH FIRER AND BURN TO THE GROUND. MAURO MOTORS NEEDS TO MAKE GOOD ON THE WARRANTY AND FIX AT NO CHARGE. I HAVE A AUTOMOTIVE BACKGROUND AND JUST CANT BUY WHAT THEY ARE SAYING THE CAUSE IS FROM..WE OWN 2 MB VEHICLES AND THIS IS UNHEARD OF. WE WILL CONTACT OUR LAWYER ABOUT THIS ISSUE IF NOT RESOLVED. REGARDS, [XXX] [XXX] H: [XXX] C:[XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).'*JB

NHTSA ODI 10970118

GOING TO WORK IN THE MORNING AND PULLING OUT OF THE GARAGE MY FOOT WAS ON THE BRAKE NOT THE ACCELERATOR IN REVERSE SUDDENLY THE CAR SURGED BY ITSELF WHILE I HAD MY FOOT ON THE BRAKE. THE CAR WENT IN REVERSE VERY FAST HITTING OUR SIDE CONCRETE SIDE WALL. (THE DISTANCE IS ABOUT (28FT) THE IMPACT WAS SO HARD THAT THE PASSENGER WINDOW WAS COMPLETELY BROKEN AND THE PASSENGER SIDE OF THE BACK FRAME OF THE MERCEDES WAS SMASHED. IT HAPPENED SO FAST THAT I LOST CONTROL OF THE VEHICLE I COULD NOT STOP THE CAR THE BRAKES DID NOT WORK. AFTER I HIT THE WALL I WAS JOLTED FORWARD AND I SMASHED THE FRONT END OF THE CAR WITH THE GARAGE. THE CAR FINALLY STOPPED IN THE MIDDLE OF THE DRIVEWAY. AGAIN, I DID NOT PUT THE CAR IN DRIVE WHEN I WAS JOLTED FORWARD THE CAR WENT FORWARD FROM THE IMPACT OF THE HIT FROM THE WALL AND I DID NOT PUT MY FOOT ON THE ACCELERATOR.

NHTSA ODI 10934530

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 MOVING VEHICLE.

NHTSA ODI 10837160

COMMAND SYSTEM OF CAR NOT RESPONDING PROPERLY, ENGINE LIGHT ILLUMINATED, LOUD NOISES FROM ENGINE. *TR

NHTSA ODI 10676374