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Mercedes-benz CLA - 2017

115.7 faults per 100 tests
Year average for all cars of 2017 is 137.4 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Mercedes-benz CLA, model year 2017. Sample size: 9,764 cars, 23,458 tests and 27,145 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 9,764 cars

The 2017 Mercedes-Benz CLA has an overall defect rate of 116 per 100 vehicles, which is 14% better than the average for its year, which stands at 134 defects per 100 vehicles. While tyre wear is common, this model particularly excels in categories such as steering, lights and electrics, and body/structure, showing significantly lower defect rates compared to the average. Notably, defect rates tend to increase with mileage, with vehicles over 124,000 miles experiencing 272 defects per 100, which is higher than the average for the same mileage bracket. Overall, the CLA stands out as a reliable choice within its segment.

Cars by mileage segment

Total: 9,764 cars

More model years for Mercedes-benz CLA

2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023

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
▲ 0.3% better
72.3 faults / 100 tests
Year avg: 72.5 / 100 tests
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Brake lining or pad: worn below 1.5mm
  • Brake disc or drum: significantly and obviously worn
Steering
▲ 87.5% better
0.7 faults / 100 tests
Year avg: 5.6 / 100 tests
Visibility
▲ 4.1% better
13.9 faults / 100 tests
Year avg: 14.5 / 100 tests
  • Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
Lights & Electrics
▲ 55.9% better
9.0 faults / 100 tests
Year avg: 20.4 / 100 tests
Wheels & Suspension
▲ 11.7% better
126.4 faults / 100 tests
Year avg: 143.1 / 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 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
  • Tyre tread depth not in accordance with the requirements
Body/Structure
▲ 74.3% better
1.8 faults / 100 tests
Year avg: 7.0 / 100 tests
Equipment
▲ 48.1% better
1.4 faults / 100 tests
Year avg: 2.7 / 100 tests
Other
▲ 34.4% better
5.9 faults / 100 tests
Year avg: 9.0 / 100 tests

Fault rate by mileage segment

Model    Year average
0 318 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: 6,482
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 3,064
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 2,628
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 2,471
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 1,393
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 993
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 730
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 594
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 487
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 483

Serious faults (Top 10)

A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 993
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 594
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 455
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 439
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 382
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 334
A suspension joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 246
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 195
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 174
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 166