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 dia…
2012 mercedes-benz ML-Class engine problems
severe 15 complaints filed with NHTSA · avg repair $3,100
Complaints
15
Recalls
0
Crashes
1
Avg fix
$3,100
What owners are reporting 4 most recent
THIS HAPPENED AS A NEW CAR, ONLY NOW, AFTER IT HAPPENED ABOUT 5 OR 6 TIMES, WE CAME TO KNOW THIS WEIRED AND DANGEROUS PROBLEM-IT LOSES THE POWER AT A STOP; AT RED LIGHT, AND EVEN WHEN WE TRIED TO START TO MOVE. WHEN IT HAPPENED, AT FIRST SEVERAL TIMES, WE WERE THINKING MAYBE I DID SOMETHING, AFTER 5 TO 6 TIMES HAPPENED TO ME AND TO MY WIFE, WE JUST CAME TO UNDERSTAND IT IS SUCH DANGEROUS PROBLEM. …
VEHICLE LOSES POWER AFTER A FEW HOURS OF DRIVING. THIS PROBLEM DOES NOT SHOW ANY ERROR MESSAGE ON THE DASHBOARD, AND THE DEALER CANNOT FIX THIS PROBLEM AFTER MULTIPLE ATTEMPTS. LAST TRIP TO THE DEALER WHICH WAS 2 WEEKS AGO, THEY INSISTED THAT NOTHING WAS WRONG. HERE ARE EXAMPLES OF HOW SERIOUS THE PROBLEM IS, I WAS STRANDED AND HAD TO SHUT THE CAR DOWN FOR 30 - 45 MINUTES TO LET THE CAR RESET BE…
CUANDO ENCIENDO MI GUAGUA HACE UN RUIDO MUY FUERTE Y SE SIENTE COMO SI SE VA A APAGAR. EL MOTOR SE PUEDE ROMPER EN CUALQUIER MOMENTO. SI SE HA LLEVADO A DIFERENTES TALLERES PARA CONFIRMAR EL RUIDO Y ME REFIEREN QUE SON MAS DE 80 GUAGUAS QUE HAN VISITADO SU TALLER CON EL MISMO PROBLEMA. NO PRESENTA NINGUNA ADVERTENCIA CUANDO APARECIO POR PRIMERA VEZ. EN EL TALLER ME DICEN QUE SE DEBE CAMBIAR EL MOT…
Common questions
How serious is the engine problem on the 2012 mercedes-benz ML-Class?
It's a meaningful issue. 15 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $3,100.
At what mileage does the engine typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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