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Mercedes-benz SLK - 2011

163.0 faults per 100 tests
Year average for all cars of 2011 is 274.4 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Mercedes-benz SLK, model year 2011. Sample size: 2,959 cars, 7,038 tests and 11,474 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 2,959 cars

The 2011 Mercedes-Benz SLK shows a significantly lower overall defect rate compared to the average car of the same year, with 163 defects per 100 vehicles versus 271. This model excels particularly in steering, visibility, and lights and electrics, with defect rates well below average in these categories. While defects increase with mileage, the SLK maintains a relatively steady performance across all mileage segments, with the highest rate recorded in the 124,000+ miles category at 342. Overall, the SLK demonstrates strong reliability compared to its peers.

Cars by mileage segment

Total: 2,959 cars

Categories

Brakes
▼ 0.5% worse
110.5 faults / 100 tests
Year avg: 109.9 / 100 tests
  • Brake pipe damaged or excessively corroded
  • 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
▲ 96.8% better
0.5 faults / 100 tests
Year avg: 15.8 / 100 tests
Visibility
▲ 57.5% better
9.0 faults / 100 tests
Year avg: 21.2 / 100 tests
Lights & Electrics
▲ 78.2% better
15.0 faults / 100 tests
Year avg: 68.9 / 100 tests
Wheels & Suspension
▲ 34.5% better
174.6 faults / 100 tests
Year avg: 266.4 / 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 suspension joint dust cover: severely deteriorated
  • A wheel bearing: with excessive play
Body/Structure
▲ 85.3% better
4.6 faults / 100 tests
Year avg: 31.3 / 100 tests
Equipment
▲ 73.0% better
2.0 faults / 100 tests
Year avg: 7.4 / 100 tests
Other
▲ 64.7% better
9.8 faults / 100 tests
Year avg: 27.8 / 100 tests

Fault rate by mileage segment

Model    Year average
0 421 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: 1,574
Brake pipe damaged or excessively corroded
ADVISORY
Occurrences: 1,418
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 999
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 852
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 758
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 482
A suspension joint dust cover: severely deteriorated
MINOR
Occurrences: 473
A wheel bearing: with excessive play
ADVISORY
Occurrences: 391
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 349
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 291

Serious faults (Top 10)

A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 291
A suspension joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 266
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 205
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 172
Brake pipe damaged or excessively corroded
FAIL
Occurrences: 171
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 162
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 85
Warning device shows system malfunction
FAIL
Occurrences: 59
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 58
A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
FAIL
Occurrences: 53