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Mercedes-benz SLK - 1999

283.2 faults per 100 tests
Year average for all cars of 1999 is 349.1 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Mercedes-benz SLK, model year 1999. Sample size: 1,537 cars, 3,206 tests and 9,080 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 1,537 cars

The 1999 Mercedes-Benz SLK shows a lower overall defect rate of 283 defects per 100 vehicles, which is 18% better than the average for cars of the same year at 345 defects per 100. Notably, the model excels in body structure and equipment categories, with defect rates significantly lower than the average, at 23% and 5% respectively. However, it has a higher incidence of issues related to lights and electrics, with a defect rate of 94% compared to the average of 74%. The data also indicates that as mileage increases, defect rates for this model tend to rise, particularly in the higher mileage categories.

Cars by mileage segment

Total: 1,537 cars

Categories

Brakes
▲ 10.7% better
137.0 faults / 100 tests
Year avg: 153.4 / 100 tests
  • Brake pipe damaged or excessively corroded
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
Steering
▲ 15.4% better
21.9 faults / 100 tests
Year avg: 25.9 / 100 tests
Visibility
▼ 1.1% worse
26.9 faults / 100 tests
Year avg: 26.6 / 100 tests
Lights & Electrics
▼ 29.3% worse
94.4 faults / 100 tests
Year avg: 73.0 / 100 tests
  • Lamp emitted colour, position or intensity not in accordance with the requirements
Wheels & Suspension
▲ 15.0% better
226.8 faults / 100 tests
Year avg: 266.9 / 100 tests
  • A suspension component: excessively damaged or corroded
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • Tyre tread depth not in accordance with the requirements
  • A spring: or spring component fractured or seriously weakened
  • A wheel bearing: with excessive play
Body/Structure
▲ 70.2% better
22.8 faults / 100 tests
Year avg: 76.5 / 100 tests
Equipment
▲ 76.0% better
4.6 faults / 100 tests
Year avg: 19.2 / 100 tests
Other
▲ 43.2% better
32.1 faults / 100 tests
Year avg: 56.5 / 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
0 538 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)

Brake pipe damaged or excessively corroded
ADVISORY
Occurrences: 807
A suspension component: excessively damaged or corroded
ADVISORY
Occurrences: 699
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 634
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 583
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 390
A spring: or spring component fractured or seriously weakened
ADVISORY
Occurrences: 359
A wheel bearing: with excessive play
ADVISORY
Occurrences: 327
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 299
Lamp emitted colour, position or intensity not in accordance with the requirements
ADVISORY
Occurrences: 291
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 282

Serious faults (Top 10)

Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 89
Stop lamp(s): all missing or inoperative
FAIL
Occurrences: 87
Lamp emitted colour, position or intensity not in accordance with the requirements
FAIL
Occurrences: 84
Beam image obviously incorrect
FAIL
Occurrences: 84
Brake pipe damaged or excessively corroded
FAIL
Occurrences: 75
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 71
A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
FAIL
Occurrences: 63
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 63
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 62
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 62