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Mercedes-benz G - 2020

34.9 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 G, model year 2020. Sample size: 629 cars, 1,788 tests and 624 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 629 cars

The 2020 Mercedes-Benz G has a significantly lower overall defect rate of 35 defects per 100 vehicles compared to the average of 90 defects per 100 vehicles, marking a 61% improvement. The model especially excels in categories such as brakes and steering, where it shows defects at rates of 17% and 0%, respectively, compared to 49% and 1% for the average car. While some mileage-related trends indicate increased defects with higher mileage, the Mercedes-Benz G maintains a strong performance across all mileage segments, particularly excelling in the lower mileage brackets. Overall, this model stands out positively in various categories, confirming its reliability compared to its peers from the same year.

Cars by mileage segment

Total: 629 cars

More model years for Mercedes-benz G

2019 2020 2021 2022

Other models from Mercedes-benz

Mercedes-benz 190 E Mercedes-benz 300 Mercedes-benz A Mercedes-benz A 180 AMG LINE Mercedes-benz A 180 SPORT Mercedes-benz A 200 Mercedes-benz A 250 AMG LINE Mercedes-benz A-CLASS Mercedes-benz B Mercedes-benz B-CLASS Mercedes-benz C Mercedes-benz CITAN Mercedes-benz CL Mercedes-benz CL 500 Mercedes-benz CLA Mercedes-benz CLC Mercedes-benz CLK Mercedes-benz CLS Mercedes-benz E Mercedes-benz E 220 AMG Mercedes-benz EQA 250 AMG LINE Mercedes-benz EQC 400 AMG LINE Mercedes-benz ESPRINTER Mercedes-benz EVITO Mercedes-benz G Mercedes-benz G-CLASS Mercedes-benz GL Mercedes-benz GLA Mercedes-benz GLA 180 AMG LINE Mercedes-benz GLA 200 AMG LINE Mercedes-benz GLA 250 AMG LINE Mercedes-benz GLA 250 EXCLUSIVE Mercedes-benz GLB 200 AMG LINE Mercedes-benz GLB 220 AMG LINE Mercedes-benz GLC Mercedes-benz GLC 300 AMG Mercedes-benz GLC 300 AMG LINE Mercedes-benz GLE Mercedes-benz GLS Mercedes-benz GT Mercedes-benz ML Mercedes-benz R-Class Mercedes-benz S-Class Mercedes-benz SL Mercedes-benz SLC Mercedes-benz SLK Mercedes-benz SPRINTER Mercedes-benz V Mercedes-benz VIANO Mercedes-benz VITO Mercedes-benz X

Categories

Brakes
▲ 67.1% better
16.7 faults / 100 tests
Year avg: 50.8 / 100 tests
  • Brake lining or pad: worn below 1.5mm
  • Brake disc or drum: significantly and obviously worn
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
Steering
▲ 100.0% better
0.0 faults / 100 tests
Year avg: 1.5 / 100 tests
Visibility
▲ 64.5% better
5.0 faults / 100 tests
Year avg: 14.1 / 100 tests
  • Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
  • Wiper blade: defective
Lights & Electrics
▲ 84.8% better
1.7 faults / 100 tests
Year avg: 11.2 / 100 tests
Wheels & Suspension
▲ 56.2% better
42.7 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 suspension pin, bush, joint or bearing: excessively worn
  • A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
  • A shock absorber damaged … or showing signs of severe leakage
Body/Structure
▲ 91.7% better
0.2 faults / 100 tests
Year avg: 2.4 / 100 tests
Equipment
▲ 53.3% better
0.7 faults / 100 tests
Year avg: 1.5 / 100 tests
Other
▲ 24.3% better
2.8 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: 242
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 107
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 47
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 25
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 21
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 19
Wiper blade: defective
MINOR
Occurrences: 18
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 16
A shock absorber damaged … or showing signs of severe leakage
ADVISORY
Occurrences: 15
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 15

Serious faults (Top 10)

A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 16
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 9
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 7
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 7
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 6
Parking brake efficiency: below minimum requirement
FAIL
Occurrences: 3
Windscreen or window damaged or seriously discoloured: and affecting the driver’s view of the road or of an obligatory external mirror
FAIL
Occurrences: 3
Lambda coefficient outside the default limits or the range specified by the manufacturer
FAIL
Occurrences: 3
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 2
Seat belt buckle missing, damaged or not functioning as intended
FAIL
Occurrences: 2