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BrakesPart report

2009 Mercedes-Benz ML350 Brakes Problems

Complaints
6about this part
Share
6%of 93 total for the year
Median mileage
114,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 6 complaints about the brakes of the 2009 Mercedes-Benz ML350, 6% of the 93 complaints for this model year. Where a mileage was given, the median is 114,000 miles. 2 recall campaigns on record are filed under a similar system.

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.

“My rear brake lines have corroded to the point that I lost my brakes. The fluid has leaked out. The car is not rusting or showing signs of rust or corrosion. Only the actual brake lines have rusted. It appears to be a defect in manufacturing. The lines should have had a protective coating or been covered in the exposed area to prevent excessive corrosion to the point the brake lines rusted thru and the vehicle lost it's braking ability. …”

NHTSA complaint #11032925, filed 2017-10, 114,000 miles

“I have a 2009 mercedes ml 350. About a week ago, my break fluid light came on. I took it into the dealership, and they topped the fluid off. A few days passed, and the light went on again. I took it into the dealership, and it was verified that the pressure drops after several minutes. (they) found the line into the abr pump was leaking. R&r pump to inspect lines and found metal line deformed at flare .”

NHTSA complaint #10452109, filed 2012-03

“The contact owns a 2009 Mercedes-Benz ML350. The contact stated that when the vehicle was started, the brake sensor warning light was illuminated. The dealer was contacted; however, the vehicle was not repaired. The contact was concerned that the failure could cause someone to be injured in the event of a failure. The manufacturer was made aware of the failure and the contact was referred to the NHTSA Hotline to report the failure. The failure mileage was approximately 230,000.”

NHTSA complaint #11596276, filed 2024-06, 230,000 miles

Related recalls

Related service bulletins

Brakes: other model years

YearComplaintsShare of year
2015612%
201411%
201359%
201235%
20111917%
201066%
200966%
2008812%
200756%
20062112%
200529%
2004411%

Other parts of the 2009 Mercedes-Benz ML350

Air bags
40 complaints
Seat belts
18 complaints
Electrical system
17 complaints
Exterior lighting
5 complaints
Fuel system
5 complaints
Body and structure
5 complaints
Other or unknown
2 complaints
Seats
1 complaints
Steering
1 complaints
Suspension
1 complaints
Transmission and drivetrain
1 complaints
Vehicle speed control
1 complaints

← All problems reported for the 2009 Mercedes-Benz ML350

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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