Thinking of buying 2017-18 GLE
2017/18 GLE350 reliability
The 3.5L NA engine is solid. The 17/18 years are beyond early build year chain tensioner issues. All MB engines from this time frame are susceptible to oil leaks from front cylinder head covers, cam sensors and cam magnets.
The above mentioned oil leaks are addressable and not fatal if caught early enough. Open the cam position sensors on any GLE you are considering to see if oil has started to leak. It’s fixable at an Indy shop or DIY.
The rest of the W166 is solid: body, suspension, steering, brakes, interior, audio, etc.
The 7G-Tronic transmission must have oil changed every 50k-60k miles. Otherwise it gets clunkier and balkier than it normally is (it can be clunky when new).
Overall a great vehicle. Not perfect but as close to perfect as MB can muster.
The 3.5L NA engine is solid. The 17/18 years are beyond early build year chain tensioner issues. All MB engines from this time frame are susceptible to oil leaks from front cylinder head covers, cam sensors and cam magnets.
The above mentioned oil leaks are addressable and not fatal if caught early enough. Open the cam position sensors on any GLE you are considering to see if oil has started to leak. It’s fixable at an Indy shop or DIY.
The rest of the W166 is solid: body, suspension, steering, brakes, interior, audio, etc.
The 7G-Tronic transmission must have oil changed every 50k-60k miles. Otherwise it gets clunkier and balkier than it normally is (it can be clunky when new).
Overall a great vehicle. Not perfect but as close to perfect as MB can muster.







