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Mercedes Benz Ml550 Problems

The Mercedes-Benz ML550 was a V8-powered variant of the M-Class luxury SUV, offering robust performance for those who found the ML350 insufficient. With 106 complaints and no recorded deaths, the ML550 proved reasonably reliable despite its additional complexity. The car appealed to buyers wanting luxury SUV capability with genuine V8 power.

106
Total Complaints
21
Total Recalls
7
Model Years
0
Reported Deaths
!

Years to Avoid

These years have significantly more complaints than average.

2008
✓

Best Years

These years have the fewest reported problems.

2012 2013

Common Problem Categories

Electrical System 18
Air Bags 18
Steering 10
Exterior Lighting 10
Service Brakes, Hydraulic 8

Complaints by Model Year

All Model Years

Year ↓ Complaints Recalls Crashes Fires Rating
2014 8 3 0 0 Average
2013 6 4 0 0 Good
2012 6 3 0 0 Good
2011 22 3 0 0 Average
2010 8 3 0 0 Average
2009 8 3 0 0 Average
2008 48 2 2 0 Avoid

Mercedes Benz Ml550 Years to Avoid

The 2008 first-year W164 ML550 accumulated the most complaints, with issues relating to transfer case problems, air suspension failures, and electrical concerns. First-year V8 production showed integration issues.

Best Mercedes Benz Ml550 Years

The 2013 ML550 benefited from the W166 platform redesign, offering improved reliability and refinement. The newer platform addressed many W164 concerns.

Frequently Asked Questions

Is the Mercedes ML550 reliable?

The ML550 is reasonably reliable but requires more maintenance than the ML350 due to V8 complexity. Air suspension and transfer case are the main areas requiring attention.

What are common ML550 problems?

Transfer case actuator failures, airmatic suspension leaks, balance shaft gear issues on early engines, and various electrical problems are frequently reported concerns.

Is the ML550 worth the premium over ML350?

The V8 adds substantial power but also complexity and fuel costs. Unless you regularly tow or need the acceleration, the ML350 offers better value and reliability.

Should I buy a Mercedes ML550?

If you want V8 power in a luxury SUV, the ML550 delivers. Find a 2013 or later W166 model with service records and budget for air suspension maintenance.