MERCEDES-BENZ GLS MOT Pass Rate
91.1% of 6,070 MERCEDES-BENZ GLS MOT tests pass.
The GLS passes its MOT 91.1% of the time — well above the average across all MERCEDES-BENZ models, which sits at 83.5%.
The MERCEDES-BENZ GLS passes its MOT 91.1% of the time — well above the national average for cars, which sits at 79.2%.
Pass rate by vehicle age
Unusually, pass rate is higher for older examples: 86.8% at 0–3 years compared with 91.7% at 6–10 years.
| Vehicle age | Pass rate | Tests | Average mileage |
|---|---|---|---|
| 0–3 years | 86.8% | 507 | 31,001 miles |
| 3–6 years | 91.3% | 2,895 | 45,227 miles |
| 6–10 years | 91.7% | 2,668 | 65,183 miles |
| 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 GLS
The most common reason the MERCEDES-BENZ GLS fails its MOT is tyres — present in 65.3% of failed tests, most often logged as "Tread depth below requirements of 1.6mm".
| Category | Share of failed tests | Example |
|---|---|---|
| Tyres | 65.3% | Tread depth below requirements of 1.6mm |
| Brakes | 15.8% | Less than 1.5 mm thick |
| Identification of the vehicle | 9.4% | Does not conform to the specified requirements |
| Lamps, reflectors and electrical equipment | 8.2% | Too high |
| Body, chassis, structure | 6.4% | Constant velocity boot split or insecure, no longer prevents the ingress of dirt |
| Visibility | 5.3% | Does not clear the windscreen effectively |
| Noise, emissions and leaks | 4.5% | Inoperative or indicates a malfunction |
| Suspension | 4.4% | Ball joint excessively worn |
| Seat belts and supplementary restraint systems | 2.3% | Buckle not functioning as intended |
| Road Wheels | 2.3% | Fixing missing |
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