Mercedes-Benz GLC 300 4MATIC Problems by Model Year
NHTSA recorded 33 consumer complaints across the 4 model years of the Mercedes-Benz GLC 300 4MATIC (2023–2026) that have at least 5 complaints. 2025 has the most, with 10. Across all years, the part named most often is electrical system (11 mentions). Pick a model year below to see its parts, mileage, recalls and service bulletins.
All GLC 300 4MATIC model years
Years with fewer than 5 complaints are not listed. The score compares years of the same model, allowing for the era and for how long each year has collected complaints: 50 is a typical year, lower means fewer complaints. It is not adjusted for sales volume.
| Year | Complaints | Median mi | Recalls | TSBs | Score (50 = typical) | Trend |
|---|---|---|---|---|---|---|
| 2026 | 6 | 5,769 | 3 | 114 | — | Too new |
| 2025 | 10 | — | 3 | 143 | — | Too new |
| 2024 | 8 | 31,153 | 3 | 145 | — | Too new |
| 2023 | 9 | 39,000 | 4 | 163 | — | Too new |
Parts named most often, all years
Counts add up complaint mentions across the listed years. A complaint can name several parts.
- Electrical system11 24%
- Body and structure8 17%
- Forward collision avoidance8 17%
- Other or unknown6 13%
- Brakes5 11%
- Transmission and drivetrain3 6.5%
- Back-over prevention (rear camera)3 6.5%
- Lane departure2 4.3%
Example complaints
One per model year, chosen for length and detail. Personal details are removed. They are consumer reports, not findings.
2025: “To the Office of Defects Investigation National Highway Traffic Safety Administration I am submitting this complaint to formally report a serious and recurring safety defect involving the automatic braking and collision detection systems in our Mercedes-Benz GLC. …”
NHTSA complaint #11723692, filed 2026-032023: “When loading groceries in my trunk, the door randomly closes on my head. The last time this door closed while we were loading, I tried stopping it with my hand, by holding it, so my spouse doesnt get smashed, and it will not stop at all. There needs to be a safety feature installed to stop this trunk from closing if a person is underneath it. I fear that a child or an elderly person wont be able to move fast enough and will be severely harmed by this.”
NHTSA complaint #11699574, filed 2025-112024: “The rear lift gate closes unexpectedly when standing behind the vehicle and loading or unloading the cargo area. The keyless soft close activates even though there is no foot movement, or when there is minimal movement. This happens without warning. On several occasions this has happened to me, and also to my wife. It has caused minor bruises, but more importantly we are both older and it has been difficult extricating ourselves and reaching the control to raise the gate again. …”
NHTSA complaint #11749171, filed 2026-07Other Mercedes-Benz models
3,963 complaintsMercedes-Benz E350
2,215 complaintsMercedes-Benz E320
1,164 complaintsMercedes-Benz ML350
952 complaintsMercedes-Benz GLK350
901 complaintsMercedes-Benz ML320
740 complaintsMercedes-Benz C250
725 complaintsMercedes-Benz GLC 300
657 complaints
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Methodology