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SteeringPart report

2003 Mercedes-Benz ML500 Steering Problems

Complaints
3about this part
Share
23%of 13 total for the year
Median mileage
150,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the steering of the 2003 Mercedes-Benz ML500, 23% of the 13 complaints for this model year. Where a mileage was given, the median is 150,000 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.

“Loss of power steering driving on the freeway due to sudden break of idler arm pulley and subsequent shredding of belt. Problem is the pulley is made of plastic and cracked in two, leaving 1/2 the pulley and shredding the belt. This occurred at driving speed of 50 MPH and mileage around 169,650 on 2003 ML500. This was very dangerous. I was able to pull off the freeway as I was driving in the lane nearest freeway exits. Almost impossible but able to steer into a parking lot. Lucky it was 'rush' hour and traffic was slow on surface streets. …”

NHTSA complaint #10960216, filed 2017-03, 169,650 miles

“I paid my dealer for a repair of a component that was covered under a recall. How do I get a refund or credit for the expense. I have ml 500 mercedes benz 2003. My power steering pump failed and was replaced at the white plains n.y. Dealership.”

NHTSA complaint #10261377, filed 2009-03, 83,317 miles

“Takata recall. Power steering brake issue, power steering hose became detached during vehicle operation, could not steer vehicle. Transmission and radio drain, car cut off on me during driving.”

NHTSA complaint #10887829, filed 2016-07, 150,000 miles

Related service bulletins

Steering: other model years

YearComplaintsShare of year
2007111%
2006514%
2004528%
2003323%
2002726%

Other parts of the 2003 Mercedes-Benz ML500

Engine
5 complaints
Brakes
3 complaints
Electrical system
3 complaints
Seats
3 complaints
Fuel system
1 complaints
Tires
1 complaints

← All problems reported for the 2003 Mercedes-Benz ML500

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