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Mercedes-benz CLA - 2015

132.1 faults per 100 tests
Year average for all cars of 2015 is 174.5 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Mercedes-benz CLA, model year 2015. Sample size: 8,197 cars, 19,715 tests and 26,041 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 8,197 cars

The 2015 Mercedes-Benz CLA shows an overall defect rate of 132 per 100 vehicles, significantly better than the average of 170 per 100, marking a 22% improvement. This model particularly excels in categories such as steering, lights and electrics, and body structure, all recording much lower defect rates compared to the average. Interestingly, as mileage increases, defect rates for this model also rise, with the highest rate seen in vehicles with over 124,000 miles. There are no notable areas where the CLA performs worse than average, indicating a reliable performance for this model.

Cars by mileage segment

Total: 8,197 cars

Categories

Brakes
▲ 11.0% better
75.4 faults / 100 tests
Year avg: 84.7 / 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
▲ 92.9% better
0.7 faults / 100 tests
Year avg: 9.9 / 100 tests
Visibility
▲ 19.9% better
12.9 faults / 100 tests
Year avg: 16.1 / 100 tests
Lights & Electrics
▲ 62.3% better
11.7 faults / 100 tests
Year avg: 31.0 / 100 tests
Wheels & Suspension
▲ 17.2% better
147.6 faults / 100 tests
Year avg: 178.3 / 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 joint dust cover: severely deteriorated
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • A spring: or spring component fractured or seriously weakened
Body/Structure
▲ 74.4% better
3.0 faults / 100 tests
Year avg: 11.7 / 100 tests
Equipment
▼ 15.0% worse
4.6 faults / 100 tests
Year avg: 4.0 / 100 tests
Other
▲ 37.1% better
8.3 faults / 100 tests
Year avg: 13.2 / 100 tests

Fault rate by mileage segment

Model    Year average
0 342 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: 5,885
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 2,940
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 1,942
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 1,882
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 1,123
A suspension joint dust cover: severely deteriorated
MINOR
Occurrences: 1,041
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 879
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 609
A spring: or spring component fractured or seriously weakened
ADVISORY
Occurrences: 604
A suspension joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 581

Serious faults (Top 10)

A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 879
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 609
A suspension joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 581
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 488
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 273
An SRS malfunction indicator lamp (MIL) indicates a system malfunction
FAIL
Occurrences: 269
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 255
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 195
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 173
A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
FAIL
Occurrences: 168