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Mercedes-benz A - 2020

79.4 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 A, model year 2020. Sample size: 33,200 cars, 73,141 tests and 58,085 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 33,200 cars

The 2020 Mercedes-Benz A model has a total defect rate of 79 per 100 vehicles, which is significantly lower than the average of 90 defects per 100 vehicles for models of the same year, marking an 11.5% improvement. Notably, this model excels in several categories, particularly in steering, where it shows a defect rate of just 0.3% compared to the average of 1.4%, and in visibility and lights & electrics, both of which have lower defect rates than the average. While mileage-related trends indicate higher defect rates in lower mileage ranges, the overall performance of the Mercedes-Benz A is commendable, particularly in structural and equipment categories. Overall, this model demonstrates a strong reliability profile compared to its peers.

Cars by mileage segment

Total: 33,200 cars

More model years for Mercedes-benz A

2018 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
▲ 4.1% better
48.7 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
  • Brake lining or pad: worn below 1.5mm
Steering
▲ 80.0% better
0.3 faults / 100 tests
Year avg: 1.5 / 100 tests
Visibility
▲ 32.6% better
9.5 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
▲ 64.3% better
4.0 faults / 100 tests
Year avg: 11.2 / 100 tests
Wheels & Suspension
▲ 5.1% better
92.5 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
  • Tyre tread depth not in accordance with the requirements
Body/Structure
▲ 66.7% better
0.8 faults / 100 tests
Year avg: 2.4 / 100 tests
Equipment
▲ 26.7% better
1.1 faults / 100 tests
Year avg: 1.5 / 100 tests
Other
▲ 48.6% better
1.9 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: 16,205
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 9,552
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 8,463
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 3,584
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 3,150
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 1,565
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 1,265
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 1,228
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 1,200
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 1,075

Serious faults (Top 10)

A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 1,265
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 1,228
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 1,075
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 1,044
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 379
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 340
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 331
Brake lining or pad: worn down to wear indicator
FAIL
Occurrences: 213
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 192
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 172