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.
2012 mercedes-benz ML-Class seatbelts problems
moderate 3 complaints filed with NHTSA · avg repair $500
Complaints
3
Recalls
0
Crashes
0
Avg fix
$500
What owners are reporting 2 most recent
SEAT BELTS WILL NOT EXTEND. WHEN TRYING TO BUCKLE SEAT BELT, THE BELT RETRACTOR LOCKS AS YOU TRY TO EXTEND, PREVENTING YOU FROM BUCKLING YOUR SEAT-BELT. AFFECTS BOTH DRIVER AND PASSENGER SEAT-BELTS. INTERMITTENTLY HAPPENS AND SEEMS TO BE TEMPERATURE RELATED. MORE LIKELY TO HAPPEN WHEN IT IS WARM.
Common questions
How serious is the seatbelts problem on the 2012 mercedes-benz ML-Class?
It's a documented issue but not catastrophic. 3 complaints have been filed. Repairs average $500 and most owners catch it before it causes a breakdown.
At what mileage does the seatbelts 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 $500 for seatbelts 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 seatbelts?
No active recalls currently cover seatbelts 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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