The Mercedes-Benz M Class Third Generation (W166) was produced from 2011-present. This luxury German crossover SUV offers state-of-the-art features, such as a four-wheel electronic traction system, and, in newer models, an Active Lane Departure Warning System, AirMatic suspension, and much more. As with any vehicle, however, this German import is known for a few common problems.
Noisy Windows: Some owners have complained of cracking or popping sounds when opening or closing their windows. This issue might worsen in rainy conditions, and failing seals or malfunctioning window regulators might be to blame.
Rough Transmission: This might be the most concerning common issue that M Class drivers report. If, upon slowing to a stop, you feel as though you have been rear ended, your German auto might be experiencing transmission issues.
Hesitant Cold Start-Up: Some owners have complained that, upon start up, they are either literally unable to, or it feels as though they are unable to, shift their cars. Warning lights may or may not accompany these problems.
Door Handle Malfunctions: If your door handle suddenly lacks resistance and then fails to open, there might be a cable or a lock mechanism issue.
Corner Lights Feature Glitch: If this feature is not working, the issue could be broken bulbs or a control unit malfunction. Alternately, this feature may be intentionally nonfunctional in your country.
If you suspect that any of these problems could be affecting your M Class, consider contacting a nearby German import technician. These professionals will be familiar with your third generation, and they will have the appropriate tools too quickly and accurate diagnose any problems. Their experience with your luxury SUV will allow them to skillfully, yet affordably, repair your Mercedes.
Search for a local, independent Mercedes-Benz repair shop with Mercedes-Benz mechanics that have dealer-level expertise at a fraction of the expense.