NHTSA (USA)Critical
At a glance
What can fail
Water can collect in the spare tire wheel well and damage the fuel pump control unit, potentially causing the engine to stall while driving.
What the fix does
This page covers 5 recalls and 10 owner complaints for the 2015 Mercedes-Benz Ml250.
Complaints filed on the 2015 Mercedes-Benz ML250 are thin in number, and the issues owners describe are spread across several systems rather than concentrated in one. On the engine side, owners report an AdBlue system malfunction alongside engine oil cooler leaks and axle leaks, and a separate report mentions a soot particulate sensor failure tied to the diesel emissions system. One owner describes sudden, unexpected airbag deployment while parked, with the inflating bag pushing their legs off the brake pedal. A steering complaint describes the wheel becoming very difficult to turn while towing, with the vehicle drifting and becoming uncontrollable. With only a handful of complaints on record, no single system stands out as a dominant pattern for this model year.
10
Total Complaints
2
Crash-Related
2
With Injuries
By System
The 2015 Mercedes-Benz ML250 has 5 recalls, the most serious involving axle bolts that may not be properly assembled and an engine oil leak that can drip onto hot surfaces and start a fire.
On the axle side, bolts on the front or rear drive axle carriers can fracture, making the vehicle unstable and harder to control. The oil leak is a separate issue affecting diesel models: oil that escapes the engine can ignite on hot engine surfaces and also creates a hazard for other vehicles on the road. Also on the mechanical side, water can collect in the spare tire wheel well and damage the fuel pump control unit, causing the engine to stall while driving. There is also a seatbelt concern: the right rear seatbelt anchor bolt may have been incorrectly installed, meaning it could fail to hold the passenger in a crash. Finally, a software fault in the emergency call system can report an incorrect date, time, or vehicle location, which may slow emergency responders in a crisis.
At a glance
What can fail
Water can collect in the spare tire wheel well and damage the fuel pump control unit, potentially causing the engine to stall while driving.
What the fix does
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Complaints are owner-reported and reflect individual experiences, not confirmed defects. They are distinct from recalls. Data sourced from the national vehicle safety complaint database. See trending complaints →
Dealers will install a water drain plug, check for water damage, and replace the fuel pump control unit if needed.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
A software error causes the eCall emergency system's date and time to be incorrect, which may result in an inaccurate vehicle location being sent during an emergency call.
What the fix does
Mercedes-Benz will send a remote software update to your vehicle. Dealers will verify the update worked or install a new communication module software at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
Front and/or rear drive axle carrier bolts may have been assembled incorrectly, causing remaining bolts to fracture.
What the fix does
Dealers will replace the axle carrier bolts at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The right rear seatbelt anchor bolt may have been incorrectly installed, potentially compromising the seatbelt's ability to secure passengers properly.
What the fix does
Dealers will inspect the right rear seatbelt anchor bolt and correct its installation if needed at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
Oil may leak from the chain tensioner gasket area in certain 2015 E250 BlueTec, E250 BlueTec 4Matic, GLK250, and ML250 BlueTec vehicles.
What the fix does
Dealers will replace the chain tensioner gasket at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.