Pass rate, every year
460 tests across 3 model years, 2020–2022.
+9.0 pts vs the national average
Pass rate, every year
460 tests across 3 model years, 2020–2022.
+9.0 pts vs the national average
Best year to buy
2020 91.3%
The strongest of the 3 years on record. See the 2020 page →
Worst year to buy
2022 88.8%
2.5 points below the 2020 peak. See the 2022 page →
The Mercedes-Benz AMG Glb MOT pass rate is 90.0%, +9.0 percentage points above the UK average. That is 460 DVSA MOT tests recorded between 2020 and 2022. This page lists the most common Mercedes-Benz AMG Glb MOT failures by category, names the best and worst model years, and finishes with a pre-MOT checklist you can run at home.
MOT pass rates are national — type your postcode to see how Mercedes-Benz AMG Glb MOT pass rates does in your corner of the country.
The Mercedes-Benz AMG Glb passed on its first attempt in 89.2%, and its overall record sits +9.0 percentage points above the national average for all cars. These figures come from every recorded DVSA MOT test for the Mercedes-Benz AMG Glb in the 2023–2025 data: 460 tests across 3 model years (2020–2022). A test still carries exactly one pass or fail verdict.
| Measure | This model |
|---|---|
| Tests analysed | 460 |
| Overall pass rate | 90.0% |
| Passed on first attempt | 89.2% |
| Average mileage at test | 28,062 mi |
| Model years covered | 2020–2022 (3 years) |
| Versus UK national average | +9.0 pts above |
Figures are computed from every recorded DVSA test for this model in the 2023–2025 data.
Every MOT failure a tester records belongs to one inspection section of the DVSA manual. For the Mercedes-Benz AMG Glb, the Tyres section leads the record — the breakdown below shows where the recorded failures cluster, then the exact strings behind the three biggest sections.
| Inspection section | Share of failures |
|---|---|
| Tyres | 48% |
| Lamps, reflectors and electrical equipment | 16% |
| Brakes | 12% |
| Visibility | 12% |
| Suspension | 3% |
| Body, chassis, structure | 3% |
| Noise, emissions and leaks | 3% |
| Identification of the vehicle | 3% |
Shares are over the Mercedes-Benz AMG Glb's recorded defect strings, merged across its year pages.
Around 48% of the recorded Mercedes-Benz AMG Glb failures fall in the Tyres section of the MOT inspection manual. Testers recorded "Has ply or cords exposed" (4.6%), "Tread depth below requirements of 1.6mm" (1.7%), "Has a cut in excess of the requirements deep enough to reach the ply or cords" (1.1%) among the Mercedes-Benz AMG Glb's tyres faults.
Around 16% of the recorded Mercedes-Benz AMG Glb failures fall in the Lamps, reflectors and electrical equipment section of the MOT inspection manual. Testers recorded "Headlamp aim too high" (1.7%), "Side repeaters lens defective which has no effect on emitted light" (0.4%), "Registration plate lamp(s) inoperative in the case of multiple lamps or light sources" (0.2%) among the Mercedes-Benz AMG Glb's lamps, reflectors and electrical equipment faults.
Around 12% of the recorded Mercedes-Benz AMG Glb failures fall in the Brakes section of the MOT inspection manual. Testers recorded "Brake pads less than 1.5 mm thick" (1.5%), "Brake discs in such a condition that it is seriously weakened" (0.2%), "Brake discs significantly and obviously worn" (0.2%) among the Mercedes-Benz AMG Glb's brakes faults.
The descriptions below are the exact DVSA failure strings testers recorded most often for the Mercedes-Benz AMG Glb, each with how many of the model's 460 tests it was noted on.
The strongest Mercedes-Benz AMG Glb model year on record is 2020 (91.3% across 80 tests), and the weakest is 2022 (88.8%). The gap between them is 2.5 points. Years with fewer than 50 recorded tests are excluded, so these are the years with enough MOT history to mean something.
Mercedes-Benz AMG Glb reliability is declining in the DVSA data — the pass rate moves about 1.3 points a year across the most recent model years shown above.
| Year | Tests | Pass rate |
|---|---|---|
| 2022 AMG Glb | 134 | 88.8% |
| 2021 AMG Glb | 246 | 90.2% |
| 2020 AMG Glb | 80 | 91.3% |
Newest model year first. Only years with at least 50 recorded tests are listed.
These checks follow this Mercedes-Benz AMG Glb's own most-recorded failure strings, starting with what a tester is most likely to flag on a Mercedes-Benz AMG Glb.
the tyre tread — “tread depth below requirements of 1.6mm”
Check all four tyres cold, including the inner shoulder where wear hides — 1.6mm across the central three-quarters is the legal limit, and most testers fail at 1.6mm without argument.
the lights — “headlamp aim too high”
Switch everything on and walk round the car: both headlamps on dip and main, every indicator, both brake lights, reverse, fog and the two number-plate lamps. A bulb is a few pounds and a five-minute job.
the brakes — “brake pads less than 1.5 mm thick”
Look through the spokes of each wheel at the pad — less than 3mm of friction material, or a lip on the disc edge, is the usual failure. Check the handbrake holds on a slope with a few clicks, not at the top of its travel.
Derived from the DVSA failure strings testers recorded for the Mercedes-Benz AMG Glb. A check that finds nothing means the item is likely fine, not that the test is guaranteed.
90.0% of the 460 recorded Mercedes-Benz AMG Glb MOT tests ended in a pass, +9.0 percentage points above the national average. 89.2% of those passed on the first attempt.
2020 is the strongest Mercedes-Benz AMG Glb year on record at 91.3%, while 2022 is the weakest at 88.8%. The year-by-year table below lists every model year with at least 50 recorded tests.
The most recorded Mercedes-Benz AMG Glb failures are "Has ply or cords exposed" and "Tread depth below requirements of 1.6mm" — together around 6% of tests, mostly in the Tyres section.