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.
This page covers 5 recalls and EPA fuel economy for the 2015 Mercedes-Benz Ml350.
20 mpg combined
11.8 L/100km
Standard Sport Utility Vehicle 2WD
Fuel economy data from fueleconomy.gov (EPA / U.S. Dept. of Energy). Annual cost based on 15,000 mi/yr at 55% city driving and current fuel prices. MPG is U.S. gallons; L/100km converted.
The 2015 Mercedes-Benz ML350 has 5 recalls, the most serious being axle bolt and front suspension oil leak issues that can make the vehicle unstable or create a fire risk.
On the axle side, bolts securing the front and/or rear drive axle carriers may not have been assembled correctly. If enough of those bolts fracture, the axle can shift and the vehicle becomes difficult to control, raising the risk of a crash. The front suspension concern involves an oil leak that, if it reaches an ignition source, can lead to a fire. There is also a fuel system issue: water can pool in the spare tire wheel well and damage the fuel pump control unit, causing the engine to stall without warning while driving. On the safety equipment side, the right rear seatbelt anchor bolt may have been installed incorrectly on certain vehicles, meaning that bolt can pull free in a crash and leave the rear passenger without effective restraint. Finally, a software fault in the emergency call system can cause the vehicle to report an incorrect date, time, or location when an emergency call is placed, which can delay first responders from reaching the correct location.
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.
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What the fix does
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
Oil in the Active Curve System reservoir can foam and leak from the cap's vent holes when the oil level drops below minimum during certain driving conditions.
What the fix does
Dealers will adjust the oil level as needed and replace the reservoir sealing cap to stop oil foam from leaking.
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.