2023 Mercedes-Benz GLC: common problems and MOT failures
What MOT testers find on the Mercedes-Benz GLC first registered in 2023: we looked at the 186 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.
Small sample: there were only 186 MOTs of these cars during 2023–2025, so treat the percentages as rough. The known faults below don't depend on it.
Common 2023 Mercedes-Benz GLC MOT failures and advisories
The share of 2023 Mercedes-Benz GLC MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.
- Tyres10% of testsRough price £70–£150
At the viewing: Check the tread on all four tyres, including the inside edges, and look for cracks or bulges.
- Wipers, windscreen and mirrors3% of testsRough price £15–£250
At the viewing: Check for chips in the driver's view, and test the wipers and washers.
- Seats and seatbelts1% of testsRough price £80–£250
At the viewing: Pull each seatbelt sharply. It should lock, and retract cleanly.
- Brakes1% of testsRough price £150–£350
At the viewing: Look for a lip on the disc edges and feel for judder or pulling when braking firmly from about 40mph.
Questions to ask the seller before buying a 2023 Mercedes-Benz GLC
Ask before you travel to see it. A seller who knows the car will have answers, and receipts.
- Can I see the service history and receipts for any big jobs?
Looking at a Mercedes-Benz GLC?
Check the actual car: its own MOT history, mileage and what to ask the seller. Free, no sign-up.
Other years
Every year of the Mercedes-Benz GLC compared
| Year | MOT tests | Most flagged |
|---|---|---|
| 2026 | – | Too new for MOT data |
| 2025 | – | Too new for MOT data |
| 2024 | – | Too new for MOT data |
| 2022 | 7,523 | Tyres 25% |
| 2021 | 13,501 | Tyres 25% |
| 2020 | 34,052 | Tyres 25% |
| 2019 | 51,503 | Tyres 25% |
| 2018 | 56,736 | Tyres 26% |
| 2017 | 37,612 | Tyres 26% |
| 2016 | 27,448 | Tyres 26% |
| 2015 | 3,979 | Tyres 27% |
Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2023–2025, counting the MOTs of Mercedes-Benz GLC cars first registered in 2023. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score