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Mercedes-benz C - 2014

149.0 faults per 100 tests
Year average for all cars of 2014 is 198.0 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Mercedes-benz C, model year 2014. Sample size: 29,197 cars, 66,431 tests and 98,959 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 29,197 cars

The 2014 Mercedes-Benz C model has a notably lower overall defect rate, with 149 defects per 100 vehicles compared to the yearly average of 194 defects per 100, representing a 23% improvement. While tyre wear is not highlighted as a significant issue, this model excels particularly in steering, visibility, lights and electrics, body structure, and equipment, showing substantial reductions in defects compared to average vehicles. Notably, as mileage increases, defect rates for this model rise, but they still remain lower than the average across all mileage segments. Overall, the Mercedes-Benz C stands out positively in multiple categories, indicating a reliable performance relative to its peers.

Cars by mileage segment

Total: 29,197 cars

Categories

Brakes
▲ 12.6% better
81.1 faults / 100 tests
Year avg: 92.8 / 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
  • Brake pipe damaged or excessively corroded
Steering
▲ 88.2% better
1.4 faults / 100 tests
Year avg: 11.9 / 100 tests
Visibility
▲ 32.6% better
11.6 faults / 100 tests
Year avg: 17.2 / 100 tests
Lights & Electrics
▲ 69.4% better
12.1 faults / 100 tests
Year avg: 39.5 / 100 tests
Wheels & Suspension
▲ 12.7% better
173.6 faults / 100 tests
Year avg: 198.8 / 100 tests
  • Tyre tread depth not in accordance with the requirements
  • A suspension pin, bush, joint or bearing: excessively worn
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • A suspension joint dust cover: severely deteriorated
  • A wheel bearing: with excessive play
Body/Structure
▲ 84.6% better
2.4 faults / 100 tests
Year avg: 15.6 / 100 tests
Equipment
▲ 35.6% better
2.9 faults / 100 tests
Year avg: 4.5 / 100 tests
Other
▲ 18.5% better
12.8 faults / 100 tests
Year avg: 15.7 / 100 tests
  • Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users

Fault rate by mileage segment

Model    Year average
0 359 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: 22,147
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 7,997
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 7,135
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 5,910
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 4,902
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 3,746
A suspension joint dust cover: severely deteriorated
MINOR
Occurrences: 3,139
A wheel bearing: with excessive play
ADVISORY
Occurrences: 2,855
Brake pipe damaged or excessively corroded
ADVISORY
Occurrences: 2,842
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 2,643

Serious faults (Top 10)

A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 2,289
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 2,286
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 1,881
A suspension joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 1,513
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 1,460
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 817
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 788
Parking brake efficiency: below minimum requirement
FAIL
Occurrences: 744
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 464
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 463