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Mercedes-benz SLK - 2015

106.4 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 SLK, model year 2015. Sample size: 5,752 cars, 14,033 tests and 14,936 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 5,752 cars

The 2015 Mercedes-Benz SLK has a significantly lower overall defect rate of 106 defects per 100 vehicles, compared to the average of 170 defects per 100 for the same year, marking a 37.6% improvement. Notably, while the vehicle shows a rising defect rate with increased mileage, it performs exceptionally well in categories such as brakes and steering, with defect rates far below the average. The SLK also has fewer issues in visibility, lights and electrics, and body/structure compared to typical vehicles. Overall, this model presents a reliable choice in terms of mechanical integrity and safety.

Cars by mileage segment

Total: 5,752 cars

Categories

Brakes
▲ 41.0% better
50.0 faults / 100 tests
Year avg: 84.7 / 100 tests
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Brake disc or drum: significantly and obviously worn
  • Brake lining or pad: worn below 1.5mm
Steering
▲ 97.0% better
0.3 faults / 100 tests
Year avg: 9.9 / 100 tests
Visibility
▲ 51.6% better
7.8 faults / 100 tests
Year avg: 16.1 / 100 tests
Lights & Electrics
▲ 80.3% better
6.1 faults / 100 tests
Year avg: 31.0 / 100 tests
Wheels & Suspension
▲ 20.0% better
142.6 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 pin, bush, joint or bearing: excessively worn
  • A wheel bearing: with excessive play
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
Body/Structure
▲ 94.0% better
0.7 faults / 100 tests
Year avg: 11.7 / 100 tests
Equipment
▲ 55.0% better
1.8 faults / 100 tests
Year avg: 4.0 / 100 tests
Other
▲ 72.7% better
3.6 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: 3,496
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 1,543
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 1,526
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 607
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 606
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 574
A wheel bearing: with excessive play
ADVISORY
Occurrences: 558
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 553
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 496
A suspension joint dust cover: severely deteriorated
MINOR
Occurrences: 458

Serious faults (Top 10)

A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 553
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 496
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 310
A suspension joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 270
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 206
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 204
Warning device shows system malfunction
FAIL
Occurrences: 108
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 68
ESC MIL indicates a system malfunction
FAIL
Occurrences: 65
Tyre pressure monitoring system malfunctioning or obviously not working
FAIL
Occurrences: 54