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Mercedes-benz CLS - 2015

118.4 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 CLS, model year 2015. Sample size: 3,461 cars, 8,099 tests and 9,591 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 3,461 cars

The 2015 Mercedes-Benz CLS shows a significantly lower overall defect rate of 118 defects per 100 vehicles, compared to the yearly average of 170 defects per 100 vehicles, marking a 30% improvement. Notably, this model performs exceptionally well in categories such as Steering, Visibility, Lights & Electrics, Body/Structure, and Equipment, all showing much lower defect rates than the average. Mileage-related trends indicate that defect rates increase with mileage, but the CLS remains competitive across all mileage segments. Overall, this model stands out positively with fewer issues in key areas compared to similar vehicles from the same year.

Cars by mileage segment

Total: 3,461 cars

Categories

Brakes
▲ 17.0% better
70.3 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 pipe damaged or excessively corroded
  • Brake disc or drum: significantly and obviously worn
Steering
▲ 94.9% better
0.5 faults / 100 tests
Year avg: 9.9 / 100 tests
Visibility
▲ 53.4% better
7.5 faults / 100 tests
Year avg: 16.1 / 100 tests
Lights & Electrics
▲ 80.6% better
6.0 faults / 100 tests
Year avg: 31.0 / 100 tests
Wheels & Suspension
▲ 21.5% better
139.9 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 tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • A wheel bearing: with excessive play
  • A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
Body/Structure
▲ 83.8% better
1.9 faults / 100 tests
Year avg: 11.7 / 100 tests
Equipment
▲ 85.0% better
0.6 faults / 100 tests
Year avg: 4.0 / 100 tests
Other
▲ 23.5% better
10.1 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: 2,176
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 768
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 738
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 529
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 449
Brake pipe damaged or excessively corroded
ADVISORY
Occurrences: 427
A wheel bearing: with excessive play
ADVISORY
Occurrences: 417
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 397
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 342
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 291

Serious faults (Top 10)

A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 449
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 189
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 169
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 135
A suspension joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 117
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 95
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 55
Brake pipe damaged or excessively corroded
FAIL
Occurrences: 54
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 52
Any fracture or welding defect on a wheel
FAIL
Occurrences: 51