OIL WAS LEAKING FROM THE ENGINE WHICH WAS THE RESULT OF A FAULTY PART THAT MERCEDES HAS SUBSEQUENTLY REPLACED WITH A NEW RE-ENGINEERED PART. THE DEALER INDICATED THAT THE ISSUE IS SYSTEMIC WITH ALL BLUE-TEC M AND G CLASS VEHICLES WHICH MERCEDES WILL NOT COVER THE CHARGE FOR. THE REPAIR REQUIRES THAT THE ENGINE BE REMOVED FROM THE CAR BECAUSE THAT IT IS THE ONLY WAY THE PART ($30) CAN BE REPLACED. …
2012 mercedes-benz ML-Class powertrain problems
moderate 5 complaints filed with NHTSA · avg repair $2,500
Complaints
5
Recalls
0
Crashes
0
Avg fix
$2,500
What owners are reporting 2 most recent
FACTORY DEFAULT IN THE TRANSFER CASE
Common questions
How serious is the powertrain problem on the 2012 mercedes-benz ML-Class?
It's a documented issue but not catastrophic. 5 complaints have been filed. Repairs average $2,500 and most owners catch it before it causes a breakdown.
At what mileage does the powertrain 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 $2,500 for powertrain 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 powertrain?
No active recalls currently cover powertrain 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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