MERCEDES-BENZ GLB MOT Pass Rate
93.4% of 12,441 MERCEDES-BENZ GLB MOT tests pass.
The GLB passes its MOT 93.4% of the time — well above the average across all MERCEDES-BENZ models, which sits at 83.5%.
The MERCEDES-BENZ GLB passes its MOT 93.4% of the time — well above the national average for cars, which sits at 79.2%.
Pass rate by vehicle age
Pass rate eases gradually with age, from 95.0% at 0–3 years to 92.1% at 3–6 years.
| Vehicle age | Pass rate | Tests | Average mileage |
|---|---|---|---|
| 0–3 years | 95.0% | 5,431 | 26,420 miles |
| 3–6 years | 92.1% | 7,010 | 33,018 miles |
| 6–10 years | no tests recorded | 0 | no reading |
| 10–15 years | no tests recorded | 0 | no reading |
| 15+ years | no tests recorded | 0 | no reading |
Common MOT failure reasons for the MERCEDES-BENZ GLB
The most common reason the MERCEDES-BENZ GLB fails its MOT is tyres — present in 51.1% of failed tests, most often logged as "Has a cut in excess of the requirements deep enough to reach the ply or cords".
| Category | Share of failed tests | Example |
|---|---|---|
| Tyres | 51.1% | Has a cut in excess of the requirements deep enough to reach the ply or cords |
| Lamps, reflectors and electrical equipment | 17.3% | Too high |
| Brakes | 16.8% | Less than 1.5 mm thick |
| Visibility | 10.8% | Does not clear the windscreen effectively |
| Identification of the vehicle | 6.5% | Does not conform to the specified requirements |
| Seat belts and supplementary restraint systems | 5.5% | Buckle not functioning as intended |
| Suspension | 4.6% | Ball joint excessively worn |
| Noise, emissions and leaks | 2.3% | Inoperative or indicates a malfunction |
| Road Wheels | 2.1% | Fixing missing |
| Body, chassis, structure | 1.5% | Constant velocity boot split or insecure, no longer prevents the ingress of dirt |
Related MERCEDES-BENZ models
- MERCEDES-BENZ C-CLASS — 81.4% pass rate
- MERCEDES-BENZ A-CLASS — 85.3% pass rate
- MERCEDES-BENZ E-CLASS — 83.3% pass rate
- MERCEDES-BENZ GLA — 89.4% pass rate
- MERCEDES-BENZ GLC — 91.1% pass rate
- MERCEDES-BENZ CLA — 87.2% pass rate