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Mercedes-benz B-CLASS - 2005

322.8 faults per 100 tests
Year average for all cars of 2005 is 377.4 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Mercedes-benz B-CLASS, model year 2005. Sample size: 431 cars, 896 tests and 2,892 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 431 cars

The 2005 Mercedes-Benz B-Class has an overall defect rate of 323 per 100 vehicles, which is 14% lower than the average for cars of the same year, at 376 per 100. Notably, as mileage increases, the defect rate also rises, particularly in the 124,000+ miles category where it reaches 494 per 100. This model excels in several areas, showing significantly fewer issues with steering, lights and electrics, and wheels compared to average cars. However, it faces more frequent defects related to brakes and body structure, indicating areas where improvements are needed.

Cars by mileage segment

Total: 431 cars

More model years for Mercedes-benz B-CLASS

2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019

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
▼ 25.7% worse
199.3 faults / 100 tests
Year avg: 158.5 / 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
▲ 52.2% better
10.7 faults / 100 tests
Year avg: 22.4 / 100 tests
Visibility
▲ 9.5% better
25.7 faults / 100 tests
Year avg: 28.4 / 100 tests
Lights & Electrics
▲ 26.6% better
80.8 faults / 100 tests
Year avg: 110.1 / 100 tests
Wheels & Suspension
▲ 32.9% better
210.9 faults / 100 tests
Year avg: 314.1 / 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 spring: or spring component fractured or seriously weakened
  • A suspension pin, bush, joint or bearing: excessively worn
Body/Structure
▼ 24.1% worse
76.3 faults / 100 tests
Year avg: 61.5 / 100 tests
  • A transmission shaft constant velocity joint boot: severely deteriorated
  • A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
Equipment
▲ 15.5% better
10.9 faults / 100 tests
Year avg: 12.9 / 100 tests
Other
▲ 34.5% better
30.6 faults / 100 tests
Year avg: 46.7 / 100 tests

Fault rate by mileage segment

Model    Year average
0 520 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: 257
Brake pipe damaged or excessively corroded
ADVISORY
Occurrences: 251
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 187
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 152
A transmission shaft constant velocity joint boot: severely deteriorated
MINOR
Occurrences: 148
Flexible brake hose: excessively damaged, deteriorated, chafed, twisted or stretched
ADVISORY
Occurrences: 98
A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 93
A spring: or spring component fractured or seriously weakened
ADVISORY
Occurrences: 91
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 77
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 73

Serious faults (Top 10)

A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 93
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 44
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 44
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 33
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 30
Parking brake efficiency: below minimum requirement
FAIL
Occurrences: 24
Brake pipe damaged or excessively corroded
FAIL
Occurrences: 21
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 20
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 20
A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
FAIL
Occurrences: 19