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Mercedes-benz A-CLASS - 2009

278.9 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 A-CLASS, model year 2009. Sample size: 7,075 cars, 15,774 tests and 43,995 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 7,075 cars

The 2009 Mercedes-Benz A-Class has an overall defect rate of 279 per 100 vehicles, which is 10% lower than the yearly average of 310 per 100. Notably, it shows improved performance in steering and other categories, with defects significantly less frequent than the average. However, it has a concerning defect rate for brakes, which is considerably higher than average. Mileage trends indicate that as distance increases, defect rates rise, especially in the highest mileage bracket. Overall, while this model excels in certain areas, attention should be given to brake-related issues.

Cars by mileage segment

Total: 7,075 cars

More model years for Mercedes-benz A-CLASS

1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020

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
▼ 81.1% worse
212.8 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
▲ 65.6% better
5.6 faults / 100 tests
Year avg: 16.3 / 100 tests
Visibility
▼ 14.5% worse
26.8 faults / 100 tests
Year avg: 23.4 / 100 tests
Lights & Electrics
▲ 29.3% better
57.2 faults / 100 tests
Year avg: 80.9 / 100 tests
Wheels & Suspension
▲ 33.6% better
199.2 faults / 100 tests
Year avg: 299.8 / 100 tests
  • Tyre tread depth not in accordance with the requirements
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • A shock absorber damaged … or showing signs of severe leakage
  • A suspension pin, bush, joint or bearing: excessively worn
  • A spring: or spring component fractured or seriously weakened
Body/Structure
▲ 16.9% better
34.5 faults / 100 tests
Year avg: 41.5 / 100 tests
  • A transmission shaft constant velocity joint boot: severely deteriorated
Equipment
▼ 14.5% worse
9.5 faults / 100 tests
Year avg: 8.3 / 100 tests
Other
▲ 64.8% better
12.1 faults / 100 tests
Year avg: 34.4 / 100 tests

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: 6,465
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 3,908
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 3,097
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 2,584
Flexible brake hose: excessively damaged, deteriorated, chafed, twisted or stretched
ADVISORY
Occurrences: 2,186
A shock absorber damaged … or showing signs of severe leakage
ADVISORY
Occurrences: 1,886
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 1,418
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 1,227
A transmission shaft constant velocity joint boot: severely deteriorated
MINOR
Occurrences: 1,158
A spring: or spring component fractured or seriously weakened
ADVISORY
Occurrences: 1,155

Serious faults (Top 10)

Brake pipe damaged or excessively corroded
FAIL
Occurrences: 684
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 634
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 616
A shock absorber damaged … or showing signs of severe leakage
FAIL
Occurrences: 585
A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 574
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 517
Beam image obviously incorrect
FAIL
Occurrences: 431
A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
FAIL
Occurrences: 415
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 304
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 297