Mercedes-Benz / Glc300 / 2017
2017 Mercedes-Benz Glc300 problems
Owners have filed 135 complaints about the 2017 Mercedes-Benz Glc300 with NHTSA. Engine accounts for 27.4% of them — the clear leader, ahead of electrical system at 11.1%.
Complaints135
Crashes6
Fires3
Injuries3
Deaths0
What owners report breaking
Engine 27.4% · 37
Electrical system 11.1% · 15
Fuel/propulsion system 9.6% · 13
Unknown or other 8.9% · 12
Air bags 7.4% · 10
Seat belts 5.9% · 8
Power train 5.2% · 7
Visibility 4.4% · 6
Severity
Of those complaints, 6 describe a crash, 3 describe a fire and 3 report an injury.
Reading the numbers
Filing volume has held steady, 45 in the last three years against 50 in the three before.
The median odometer reading at the time of complaint was 25,500 miles.
In owners' own words
Intake and exhaust cam shaft and adjuster failure at 83,000 miles. Failure caused vehicle not to accelerate and stalled starts. Was on the highway when vehicle wouldnât accelerate putting driver and others on road in danger. Repair on vehicle costing over $5k and MBUSA has no recourse due to vehicle being out of warranty. Per techs this issue should not happen to the engine. Engine
driving car and engine failed, #1 piston crack, turbo metal filings ruined it also, very expensive repair. both engine and turbo had to be replaced by mercedes benz service. many others are reporting this also, catastrophic failure at speed possible - not known if any fatalities associates with these engines (on both c300 and glc300 circa 2015 to ~2018) Engine
-The malfunctioned component is the Positive Crankcase Ventilation. - Vehicle wanted to stall and did not want to accelerate while in the middle lane on the highway with my family. - Yes it has been diagnosis by certified mechanic - The check engine light turned on at the time of the incident and has been turning on and off ever since. Engine
Verbatim from NHTSA filings. Complaints are unverified owner reports.
Safety recalls
Checking NHTSA for open recalls…