2009 Mercedes Benz M-Class Problems, Complaints & Recalls

Source: NHTSA · Updated Sep 9, 2009 · 1 owner complaints analyzed

Compared with other M-Class years
Not enough data 9th of 11 for complaints
NHTSA crash rating
Not rated

Owners have filed 1 complaint with NHTSA about the 2009 Mercedes Benz M-Class. That ranks 9th out of 11 M-Class model years for complaints. The most reported problem area is structure (1 complaints, 100%). There is 1 safety recall covering this model year.

Mercedes Benz M-Class
MERCEDES-BENZ ML (W166) China. Representative photo; appearance varies by model year. Photo: Dinkun Chen, CC BY-SA 4.0, via Wikimedia Commons.

Complaints are unverified owner reports and are not adjusted for sales volume.

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Most common 2009 Mercedes Benz M-Class problems

Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.

Structure1
Problem areaComplaintsShareMedian milesOwners mention mostTypical repair cost
Structure1100%———

One complaint can list several problem areas, so shares can add up to more than 100%.

2009 Mercedes Benz M-Class recalls (1)

Tap a recall to see the problem, the risk and the fix.

Exterior lighting:tail lightsMar 10, 2009 · NHTSA campaign 09V076000 · 16,130 vehicles

Problem: Mercedes benz is recalling 16,130 my 2009 m-class w164 passenger vehicles equipped with the optional power lift gate. As a result of a faulty seal around the rear tail lamp assembly, water may enter the rear compartment containing the spare tire. Water contamination of the control unit for the power lift gate can result in disabling of the power lift gate motor.

Risk: Water will cause a short circuit which could lead to a fire.

Fix: Dealers will replace the seal of the rear tail lamp assembly with a thicker one and reposition the affected power lift gate control unit inside the chassis. This service will be performed free of charge. The recall is expected to begin during april 2009. Owners may contact mercedes-benz at 1-800-367-6372.

To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.

Recent owner reports

Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.

Power tailgates for some mfg,s (including even mercedes benz) are poorly designed, having no limit switches to prevent crushing a person caught near the closing tailgate!!! *tr

Structure · received Sep 9, 2009 · NHTSA complaint 10283372

Other Mercedes Benz M-Class years

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See all Mercedes Benz M-Class problems by year, every Mercedes Benz model, or the Mercedes Benz VIN decoder.

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Frequently asked questions

What are the most common problems with the 2009 Mercedes Benz M-Class?

Owners most often report structure problems. The top one, structure, accounts for 1 complaint.

Was there a recall on the 2009 Mercedes Benz M-Class?

Yes, 1 safety recall. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.

Was the 2009 Mercedes Benz M-Class a good year?

Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other M-Class model years, the 2009 has too little data to compare. Always get a pre-purchase inspection and check the VIN for open recalls.