2022 Mercedes-Benz GLC 300 fuel/propulsion system problems
10 owner complaints filed with NHTSA name the fuel/propulsion system on the 2022 Mercedes-Benz GLC 300 — 18% of all complaints for this model year.
What owners report
“Low coolant warning came on. Battery car didn’t start , had it jump. Low coolant warning came on again. Passenger seat belt warning is on.”
filed May 8, 2026
“I was driving back to my house in york, PA. My car all the sudden changed the gear from “D” to “N”. My gas meter was showing 106 miles. my didn’t give sign or alert before it shifted the gear from D to N. I was driving on highway and this was major safety concern as I could have hit by cars coming…”
filed Apr 16, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
This NCU replaces the prior NCU issued on May 15, 2025, and contains additional MY 2023 and MY 2024 vehicles which are highlighted below. In our continuing efforts to ensure the proper performance of Mercedes-Benz…
EW - DMTL · Warranty Program/Extension · issued Jul 31, 2026
Fuel/propulsion System problems in other GLC 300 years
| Year | Reports | Share |
|---|---|---|
| 2023 GLC 300 | 5 | 9% |
| 2021 GLC 300 | 9 | 15% |
| 2020 GLC 300 | 4 | 6% |
| 2019 GLC 300 | 3 | 7% |
| 2018 GLC 300 | 7 | 8% |
Other reported problem areas on the 2022 Mercedes-Benz GLC 300
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.