Skip to main content

Mercedes-benz SL - 2009

137.4 faults per 100 tests
Year average for all cars of 2009 is 311.0 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Mercedes-benz SL, model year 2009. Sample size: 599 cars, 1,408 tests and 1,935 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 599 cars

The 2009 Mercedes-Benz SL shows a significantly lower overall defect rate compared to the average car of the same year, with 137 defects per 100 vehicles compared to 310 for the average. This model excels particularly in categories such as brakes, steering, and visibility, where it demonstrates much lower rates of defects than the average vehicle. Notably, the SL's performance is especially strong in body structure and equipment, showing substantially fewer issues. Mileage trends indicate that as mileage increases, defect rates rise, but the SL maintains a favourable defect rate across all mileage segments compared to average figures.

Cars by mileage segment

Total: 599 cars

Categories

Brakes
▲ 20.7% better
93.2 faults / 100 tests
Year avg: 117.5 / 100 tests
  • Brake pipe damaged or excessively corroded
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Flexible brake hose: excessively damaged, deteriorated, chafed, twisted or stretched
  • Brake lining or pad: worn below 1.5mm
Steering
▲ 84.0% better
2.6 faults / 100 tests
Year avg: 16.3 / 100 tests
Visibility
▲ 59.8% better
9.4 faults / 100 tests
Year avg: 23.4 / 100 tests
Lights & Electrics
▲ 80.5% better
15.8 faults / 100 tests
Year avg: 80.9 / 100 tests
Wheels & Suspension
▲ 52.9% better
141.2 faults / 100 tests
Year avg: 299.8 / 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 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
▲ 89.6% better
4.3 faults / 100 tests
Year avg: 41.5 / 100 tests
Equipment
▲ 80.7% better
1.6 faults / 100 tests
Year avg: 8.3 / 100 tests
Other
▲ 79.7% better
7.0 faults / 100 tests
Year avg: 34.4 / 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
0 464 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: 242
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 203
Brake pipe damaged or excessively corroded
ADVISORY
Occurrences: 197
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 151
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 142
Flexible brake hose: excessively damaged, deteriorated, chafed, twisted or stretched
ADVISORY
Occurrences: 77
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 69
A wheel bearing: with excessive play
ADVISORY
Occurrences: 68
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 56
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 43

Serious faults (Top 10)

A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 56
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 36
Brake pipe damaged or excessively corroded
FAIL
Occurrences: 25
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 22
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 21
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 20
A shock absorber damaged … or showing signs of severe leakage
FAIL
Occurrences: 15
Lamp emitted colour, position or intensity not in accordance with the requirements
FAIL
Occurrences: 12
Parking brake efficiency: below minimum requirement
FAIL
Occurrences: 11
A suspension joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 10