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Mercedes-benz GL - 2009

241.6 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 GL, model year 2009. Sample size: 120 cars, 262 tests and 633 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 120 cars

The 2009 Mercedes-Benz GL has an overall defect rate of 242 per 100 vehicles, which is 22% lower than the average for cars of the same year at 310 defects per 100 vehicles. Notably, this model performs exceptionally well in categories such as steering and visibility, with defect rates significantly lower than the average. However, it shows a concerning trend in brakes, where defects are notably higher compared to the average. The mileage-related data indicates that defect rates generally increase with mileage, particularly in the higher mileage brackets.

Cars by mileage segment

Total: 120 cars

Categories

Brakes
▼ 63.7% worse
192.4 faults / 100 tests
Year avg: 117.5 / 100 tests
  • Brake pipe damaged or excessively corroded
  • Brake disc or drum: significantly and obviously worn
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Brake pipe damaged or excessively corroded
  • Brake lining or pad: worn below 1.5mm
Steering
▲ 81.0% better
3.1 faults / 100 tests
Year avg: 16.3 / 100 tests
Visibility
▲ 54.3% better
10.7 faults / 100 tests
Year avg: 23.4 / 100 tests
Lights & Electrics
▲ 29.2% better
57.3 faults / 100 tests
Year avg: 80.9 / 100 tests
Wheels & Suspension
▲ 44.0% better
167.9 faults / 100 tests
Year avg: 299.8 / 100 tests
  • Tyre tread depth not in accordance with the requirements
  • A shock absorber damaged … or showing signs of severe leakage
  • 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
▲ 81.7% better
7.6 faults / 100 tests
Year avg: 41.5 / 100 tests
Equipment
▲ 54.2% better
3.8 faults / 100 tests
Year avg: 8.3 / 100 tests
Other
▼ 17.7% worse
40.5 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
0 500 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: 82
Brake pipe damaged or excessively corroded
ADVISORY
Occurrences: 79
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 46
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 46
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 42
A shock absorber damaged … or showing signs of severe leakage
ADVISORY
Occurrences: 37
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 23
Brake pipe damaged or excessively corroded
FAIL
Occurrences: 20
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 16
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 14

Serious faults (Top 10)

Brake pipe damaged or excessively corroded
FAIL
Occurrences: 20
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 11
A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
FAIL
Occurrences: 11
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 8
A shock absorber damaged … or showing signs of severe leakage
FAIL
Occurrences: 7
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 3
Insufficient reserve travel
FAIL
Occurrences: 3
Parking brake efficiency: below minimum requirement
FAIL
Occurrences: 3
Service brake efficiency: less than 50% of the required value
FAIL
Occurrences: 2
A gas, air or fluid suspension system component … it would adversely affect the functioning of the system
FAIL
Occurrences: 2