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Mercedes-benz GLB 220 AMG LINE - 2020

72.5 faults per 100 tests
Year average for all cars of 2020 is 91.3 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Mercedes-benz GLB 220 AMG LINE, model year 2020. Sample size: 2,113 cars, 4,426 tests and 3,209 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 2,113 cars

The 2020 Mercedes-Benz GLB 220 AMG Line has an overall defect rate of 73 defects per 100 vehicles, significantly lower than the yearly average of 90 defects per 100 vehicles, indicating it performs better than average by about 19%. The model shows particularly strong results in categories like steering and lights and electrics, with defect rates markedly lower than the average. However, it has a higher than average defect rate in equipment issues. Mileage-related trends show that defect rates increase as mileage increases, but the model maintains a reasonably low defect count across all mileage segments.

Cars by mileage segment

Total: 2,113 cars

Categories

Brakes
▲ 19.7% better
40.8 faults / 100 tests
Year avg: 50.8 / 100 tests
  • Brake lining or pad: worn below 1.5mm
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Brake disc or drum: significantly and obviously worn
Steering
▲ 93.3% better
0.1 faults / 100 tests
Year avg: 1.5 / 100 tests
Visibility
▲ 43.3% better
8.0 faults / 100 tests
Year avg: 14.1 / 100 tests
  • Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
Lights & Electrics
▲ 66.1% better
3.8 faults / 100 tests
Year avg: 11.2 / 100 tests
  • The aim of a headlamp is not within limits laid down in the requirements
Wheels & Suspension
▲ 11.4% better
86.4 faults / 100 tests
Year avg: 97.5 / 100 tests
  • Tyre tread depth not in accordance with the requirements
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
  • A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
Body/Structure
▲ 33.3% better
1.6 faults / 100 tests
Year avg: 2.4 / 100 tests
Equipment
▼ 140.0% worse
3.6 faults / 100 tests
Year avg: 1.5 / 100 tests
Other
▲ 81.1% better
0.7 faults / 100 tests
Year avg: 3.7 / 100 tests

Fault rate by mileage segment

Model    Year average
0 273 0–31,000 mi 31,000–62,000 62,000–93,000 93,000–124,000 124,000+
* Metric: faults per 100 tests.

Most common faults (Top 10)

Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 998
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 431
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 402
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 208
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 200
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 135
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 118
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 67
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 66
The aim of a headlamp is not within limits laid down in the requirements
PRS
Occurrences: 57

Serious faults (Top 10)

A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 135
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 67
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 49
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 35
Audible warning:
FAIL
Occurrences: 18
An SRS malfunction indicator lamp (MIL) indicates a system malfunction
FAIL
Occurrences: 17
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 17
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 16
Brake disc or drum: significantly and obviously worn
FAIL
Occurrences: 12
A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 11