2019 Mercedes-Benz G: common problems and what to check
What gets flagged at MOT on 2019 Mercedes-Benz Gs, from 479 tests in 2025, plus known faults and what to look at before you buy one.
Small sample: only 479 of these were MOT tested in 2025, so treat the percentages as rough. The known faults below don't depend on it.
What gets flagged at MOT
The share of 2019 Mercedes-Benz G MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.
- Tyres16% 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.
- Brakes7% 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.
- Suspension4% 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.
- Oil and fluid leaks3% of testsRough price £80–£600
At the viewing: Look under the engine and on the ground where the car is usually parked for fresh oil or fluid.
- 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.
- Driveshafts and joints1% of testsRough price £60–£350
At the viewing: On full steering lock, drive slowly and listen for clicking from the front wheels.
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Other years
| Year | MOT tests | Most flagged |
|---|---|---|
| 2022 | 257 | Tyres 17% |
| 2021 | 358 | Tyres 19% |
| 2020 | 399 | Tyres 14% |
Where this comes from: the DVSA's anonymised results for every MOT test in Great Britain in 2025, counting tests of 2019 Mercedes-Benz Gs registered in 2019. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score