2019 Mercedes-Benz SLC: common problems and MOT failures
What MOT testers find on the Mercedes-Benz SLC first registered in 2019: we looked at the 2,936 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.
What goes wrong more than usual on a 2019 Mercedes-Benz SLC?
Parts flagged at MOT more often on the 2019 Mercedes-Benz SLC than on all cars registered in 2019.
- Wheel bearings12.5× usualMercedes-Benz SLC2.5% All 2019 cars0.2%
Failed outright at MOT: 0%, against 0.1% of all 2019 cars. The rest were advisories or minor defects.
Rough price £120–£300 (one bearing) ClickMechanicAt the viewing: Listen for a hum or growl that changes as you steer at speed.
Brake pads: 1.3% here, against 10.1% of all 2019 cars. Brake discs: 1.8% here, against 8.6% of all 2019 cars.
Common 2019 Mercedes-Benz SLC MOT failures and advisories
The share of 2019 Mercedes-Benz SLC MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.
- Tyres26% 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.
- Lights and electrics6% of testsRough price £10–£80
At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.
- Brakes3% 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.
- Wipers, windscreen and mirrors2% of testsRough price £15–£250
At the viewing: Check for chips in the driver's view, and test the wipers and washers.
- Suspension2% of testsRough price £120–£400
At the viewing: Listen for knocks over speed bumps, and look behind each front wheel for a snapped coil spring.
Questions to ask the seller before buying a 2019 Mercedes-Benz SLC
Ask before you travel to see it. A seller who knows the car will have answers, and receipts.
- Any recent work on the wheel bearings? (Flagged at MOT 12.5× as often on the 2019 Mercedes-Benz SLC as on other cars the same age.)
- Can I see the service history and receipts for any big jobs?
Looking at a Mercedes-Benz SLC?
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 SLC compared
| Year | MOT tests | Most flagged |
|---|---|---|
| 2021 | 386 | Tyres 23% |
| 2020 | 1,766 | Tyres 21% |
| 2018 | 4,423 | Tyres 29% |
| 2017 | 10,226 | Tyres 29% |
| 2016 | 6,698 | Tyres 29% |
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 SLC cars first registered in 2019. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score