2016 Mercedes-Benz GLC300 fuel/propulsion system problems
18 owner complaints filed with NHTSA name the fuel/propulsion system on the 2016 Mercedes-Benz GLC300 — 14% of all complaints for this model year.
What owners report
“Mercedes-Benz USA (MBUSA) To whom It May Concern, Complaint through your dealer, regional MB and state AG. Going through MBUSA is a waste of time. You would be better off going to Sears and buying a shiny new hammer and banging your head every hour on the hour. A little over a year ago, I Purchase…”
filed Sep 20, 2025
“I have noticed extreme gas odors in the cabin of my car, the gas odor is so horrific that even when I exit the car either outside or in my garage the odor remains. My car is housed in my garage and I'm very concerned regarding these fumes which fills up my garage because my home is attached. I…”
filed Oct 23, 2023
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Fuel/propulsion System problems in other GLC300 years
| Year | Reports | Share |
|---|---|---|
| 2017 GLC300 | 13 | 13% |
Other reported problem areas on the 2016 Mercedes-Benz GLC300
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.