2016 Mercedes-Benz GLC300 electrical system problems
11 owner complaints filed with NHTSA name the electrical system on the 2016 Mercedes-Benz GLC300 — 8% of all complaints for this model year.
What owners report
“Since we purchased this car in december 2015, we have had a series of electrical and engine problems that do not seem to fixable by the dealer. The car was serviced (3 years or 30,000 miles) *cw *bf*jb consumer also had issues with faulty radar sensor, power control unit, engine light, and faulty…”
filed Oct 3, 2019
“Tl* the contact owns a 2016 mercedes-benz glc300. The contact received notification of nhtsa campaign number: 17v114000 (electrical system, engine and engine cooling). The part to do the repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the…”
filed Sep 11, 2017
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- Various control units on these vehicles may have been updated with incorrect software…Campaign 17V177000 · Mar 14, 2017
- Steering columns in the affected vehicles may have the wiring harness for the switch…Campaign 16V146000 · Mar 10, 2016
Related service bulletins
Complaint Service code B1 displayed in the customer menu does not match the workshop code displayed in the workshop menu, e.g., 505 or 550A, which includes a service A. Cause The root cause is currently being…
LI00.20-P-080703 · Service Bulletin/Repair Instructions · issued Jun 12, 2026Complaint After successful commissioning of the HERMES control unit (N112/9) with XENTRY Diagnosis DVD 03/2026, the message "SOS - service not activated" appears on the instrument cluster. In addition, the following two…
LI82.85-P-080507 · Service Bulletin/Repair Instructions · issued May 26, 2026Complaint The customer requests deactivation of the N112/9 HERMES communication module Note: Deactivation of the HERMES control unit (N112/9) is not supported for gray-market vehicles. Cause Before deactivating the…
LI82.85-P-080559 · Service Bulletin/Repair Instructions · issued May 26, 2026
Electrical System problems in other GLC300 years
| Year | Reports | Share |
|---|---|---|
| 2017 GLC300 | 15 | 15% |
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.