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Engine coolingPart report

2007 Mercedes-Benz ML350 Engine cooling Problems

Complaints
7about this part
Share
8%of 83 total for the year
Median mileage
47,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 7 complaints about the engine cooling of the 2007 Mercedes-Benz ML350, 8% of the 83 complaints for this model year. Where a mileage was given, the median is 47,000 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“I purchased my 2007 mercedes benz ML350 on 10/11/14 on 10/24/14 I began having problems with what seemed to the shifting of gears. When trying to slowly excel from either a complete stop or a slow crawl it seems as though the car would not move, it was having a problem automatically shifting from 1st to 2nd gear, and back down from 3rd to 2nd. This has happened several times and has occurred while in traffic endangering my and my families lives. After speaking to a mechanic, he has stated that this seems to be continual problem with this vehicle and should be made part of a recall! …”

NHTSA complaint #10654402, filed 2014-11, 81,586 miles

“Engine light came on . Take to repair shop,crank sensor bad,changed crank sensor, light came on back,o2 sensor bad, changed o2 sensor,light came back on,finally said worn sprackett in engine sending false reading. Steering pump went bad at 59000. Ac pump pulley broke off at 54,000 miles. Ac/heat comes on by itself, even when vehicle is turn off.”

NHTSA complaint #10433837, filed 2011-11, 54,000 miles

“Balance shaft requires engine to be removed and repaired at a cost of $4200 (after 47,000 miles). Told by a number of mechanics that this is a common problem with this engine in ml 350 mercedes benz, 2006,2007.”

NHTSA complaint #10400979, filed 2011-05, 47,000 miles

“Car stalls unexpectedly at low speeds without any warning. There is no computer record that the dealer can find on the car to confirm any failure but this has happened repeatedly with different drivers.”

NHTSA complaint #10231843, filed 2008-06, 3,245 miles

“The contact owns a 2007 Mercedes-Benz ML350. The contact stated while driving 50 MPH, the accelerator pedal was depressed but the vehicle failed to respond and failed to exceed 50 MPH. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic where unknown repairs were completed. Additionally, the contact stated while driving, the ESC warning light was illuminated. The contact stated that the vehicle would lose motive power and stall inadvertently while at a complete stop. …”

NHTSA complaint #11471853, filed 2022-06, 146,000 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
201512%
201411%
201223%
200811%
200778%
20061710%
2005522%
200439%
2003416%

Other parts of the 2007 Mercedes-Benz ML350

Seats
30 complaints
Electrical system
19 complaints
Transmission and drivetrain
17 complaints
Steering
8 complaints
Body and structure
6 complaints
Brakes
5 complaints
Engine
5 complaints
Exterior lighting
3 complaints
Vehicle speed control
3 complaints
Air bags
2 complaints
Equipment
2 complaints
Fuel system
2 complaints

← All problems reported for the 2007 Mercedes-Benz ML350

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology