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Mercedes-benz R-CLASS - 2009

286.3 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 R-CLASS, model year 2009. Sample size: 199 cars, 422 tests and 1,208 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 199 cars

The 2009 Mercedes-Benz R-Class has a lower overall defect rate than the average car of the same year, with around 286 defects per 100 vehicles compared to 310 defects per 100. Notably, the model performs exceptionally well in steering and visibility issues, which are significantly lower than average, showing a marked improvement in these areas. However, it faces challenges with brake defects, where it exceeds the average rate, as well as in other equipment-related defects. As mileage increases, the defect rate also rises, particularly notable in the highest mileage bracket where defects are more prevalent, indicating a need for careful maintenance as the vehicle ages.

Cars by mileage segment

Total: 199 cars

More model years for Mercedes-benz R-CLASS

2006 2007 2008 2009 2010 2011 2012 2013

Other models from Mercedes-benz

Mercedes-benz 190 E Mercedes-benz 300 Mercedes-benz A Mercedes-benz A 180 AMG LINE Mercedes-benz A 180 SPORT Mercedes-benz A 200 Mercedes-benz A 250 AMG LINE Mercedes-benz A-CLASS Mercedes-benz B Mercedes-benz B-CLASS Mercedes-benz C Mercedes-benz CITAN Mercedes-benz CL Mercedes-benz CL 500 Mercedes-benz CLA Mercedes-benz CLC Mercedes-benz CLK Mercedes-benz CLS Mercedes-benz E Mercedes-benz E 220 AMG Mercedes-benz EQA 250 AMG LINE Mercedes-benz EQC 400 AMG LINE Mercedes-benz ESPRINTER Mercedes-benz EVITO Mercedes-benz G Mercedes-benz G-CLASS Mercedes-benz GL Mercedes-benz GLA Mercedes-benz GLA 180 AMG LINE Mercedes-benz GLA 200 AMG LINE Mercedes-benz GLA 250 AMG LINE Mercedes-benz GLA 250 EXCLUSIVE Mercedes-benz GLB 200 AMG LINE Mercedes-benz GLB 220 AMG LINE Mercedes-benz GLC Mercedes-benz GLC 300 AMG Mercedes-benz GLC 300 AMG LINE Mercedes-benz GLE Mercedes-benz GLS Mercedes-benz GT Mercedes-benz ML Mercedes-benz R-Class Mercedes-benz S-Class Mercedes-benz SL Mercedes-benz SLC Mercedes-benz SLK Mercedes-benz SPRINTER Mercedes-benz V Mercedes-benz VIANO Mercedes-benz VITO Mercedes-benz X

Categories

Brakes
▼ 48.0% worse
173.9 faults / 100 tests
Year avg: 117.5 / 100 tests
  • Brake pipe damaged or excessively corroded
  • Brake lining or pad: worn below 1.5mm
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
Steering
▲ 79.8% better
3.3 faults / 100 tests
Year avg: 16.3 / 100 tests
Visibility
▲ 41.5% better
13.7 faults / 100 tests
Year avg: 23.4 / 100 tests
Lights & Electrics
▲ 18.5% better
65.9 faults / 100 tests
Year avg: 80.9 / 100 tests
Wheels & Suspension
▲ 39.8% better
180.6 faults / 100 tests
Year avg: 299.8 / 100 tests
  • Tyre tread depth not in accordance with the requirements
  • A suspension pin, bush, joint or bearing: excessively worn
  • A shock absorber damaged … or showing signs of severe leakage
  • A suspension component: excessively damaged or corroded
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
Body/Structure
▼ 1.7% worse
42.2 faults / 100 tests
Year avg: 41.5 / 100 tests
  • A transmission shaft constant velocity joint boot: severely deteriorated
Equipment
▼ 31.3% worse
10.9 faults / 100 tests
Year avg: 8.3 / 100 tests
Other
▼ 138.4% worse
82.0 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
0 454 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: 152
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 144
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 124
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 73
A transmission shaft constant velocity joint boot: severely deteriorated
MINOR
Occurrences: 53
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 49
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 38
A shock absorber damaged … or showing signs of severe leakage
ADVISORY
Occurrences: 36
A suspension component: excessively damaged or corroded
ADVISORY
Occurrences: 35
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 28

Serious faults (Top 10)

Brake pipe damaged or excessively corroded
FAIL
Occurrences: 18
Parking brake efficiency: below minimum requirement
FAIL
Occurrences: 18
A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 15
Flexible brake hose: excessively damaged, deteriorated, chafed, twisted or stretched
FAIL
Occurrences: 11
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 11
Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
FAIL
Occurrences: 10
Smoke opacity levels exceed the manufacturer’s specified limit
FAIL
Occurrences: 8
Parking brake efficiency: less than 50% of the required value
FAIL
Occurrences: 8
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 6
Parking brake inoperative on one side, or in the case of testing on the road, the vehicle deviates excessively from a straight line
FAIL
Occurrences: 6