The Mercedes-Benz M Class Third Generation (W166), now the GLE-Class First Generation, was produced from 2011- 2019. 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.
Air Suspension Problems: The W166 M-Class/GLE-Class is equipped with an air suspension system, and some owners have experienced issues with it. These problems can include leaks, faulty air compressors or failed air springs. The air suspension issues can cause a choppy ride and a reduced suspension performance. Air suspension component replacement may be necessary to fix the issue.
Transmission Issues: Some owners have reported a rough ride or shifting and delayed engagement. Many times this is due to an internal component failure and can be fixed by an experienced Mercedes-Benz technician.
Electrical Problems: Electrical issues with the W166 may include malfunction of the windows, on-board instrument lighting and parking sensor problems. Sometimes a software upgrade can fix these issues, otherwise, a trip to your local Mercedes-Benz service center may be in order.
Noisy Timing Chain: A few reports on a rattling sound coming from the timing chain when starting your W166 cold has been noticed by owners. This can result in the timing chain to break and cause engine damage. If you suspect your timing chain is the problem, take your vehicle to an experienced Mercedes-Benz mechanic so they can replace the chain.
If you suspect that any of these problems could be affecting your M Class/GLE 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.