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Mercedes-benz SL - 2018

58.2 faults per 100 tests
Year average for all cars of 2018 is 123.2 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Mercedes-benz SL, model year 2018. Sample size: 520 cars, 1,315 tests and 765 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 520 cars

The 2018 Mercedes-Benz SL has an overall defect rate of 58 per 100 vehicles, significantly lower than the average of 120 per 100, marking a 51.5% improvement compared to similar models. Notable issues related to tyre wear are less prominent, with the SL excelling particularly in categories such as brakes and visibility, where it shows considerably fewer defects than the average. It also performs better in steering, lights and electrics, and body structure, highlighting its reliability in these areas. Despite its strong performance, the model does show some challenges in suspension, with defects being more frequent than average. Overall, the SL stands out as a well-performing model in terms of defects.

Cars by mileage segment

Total: 520 cars

Categories

Brakes
▲ 82.6% better
12.0 faults / 100 tests
Year avg: 68.8 / 100 tests
  • Brake lining or pad: worn below 1.5mm
  • Brake disc or drum: significantly and obviously worn
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
Steering
▲ 52.0% better
2.4 faults / 100 tests
Year avg: 5.0 / 100 tests
  • A steering ball joint: with excessive wear or free play
Visibility
▲ 78.4% better
3.0 faults / 100 tests
Year avg: 13.9 / 100 tests
Lights & Electrics
▲ 73.9% better
4.6 faults / 100 tests
Year avg: 17.6 / 100 tests
Wheels & Suspension
▲ 27.2% better
92.3 faults / 100 tests
Year avg: 126.7 / 100 tests
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • Tyre tread depth not in accordance with the requirements
  • A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
  • A suspension pin, bush, joint or bearing: excessively worn
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
Body/Structure
▲ 94.1% better
0.3 faults / 100 tests
Year avg: 5.1 / 100 tests
Equipment
▲ 59.1% better
0.9 faults / 100 tests
Year avg: 2.2 / 100 tests
Other
▲ 88.6% better
0.8 faults / 100 tests
Year avg: 7.0 / 100 tests

Fault rate by mileage segment

Model    Year average
0 307 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)

A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 264
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 156
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 40
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 40
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 38
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 37
A steering ball joint: with excessive wear or free play
ADVISORY
Occurrences: 16
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 15
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 14
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 14

Serious faults (Top 10)

A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 38
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 14
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 14
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 9
An SRS malfunction indicator lamp (MIL) indicates a system malfunction
FAIL
Occurrences: 3
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 3
Brake lining or pad: worn down to wear indicator
FAIL
Occurrences: 3
Headlamp emitted colour, position or intensity not in accordance with the requirements
FAIL
Occurrences: 3
A suspension joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 2
Tyre pressure monitoring system malfunctioning or obviously not working
FAIL
Occurrences: 2