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Mercedes-benz B-CLASS - 2011

252.5 faults per 100 tests
Year average for all cars of 2011 is 274.4 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 2011. Sample size: 3,667 cars, 8,696 tests and 21,954 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 3,667 cars

The 2011 Mercedes-Benz B-Class has an overall defect rate of 252 per 100 vehicles, which is 6.7% lower than the average for cars of the same year. This model performs particularly well in categories such as steering, wheels, suspensions, and axles, with significantly fewer defects compared to the average. However, it shows a notable weakness in the brakes, where the defect rate is 161 per 100, considerably higher than the average rate of 112. Mileage trends indicate that defect rates increase with mileage, but the B-Class maintains a relatively better performance across lower mileage segments compared to its peers.

Cars by mileage segment

Total: 3,667 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
▼ 46.7% worse
161.2 faults / 100 tests
Year avg: 109.9 / 100 tests
  • Brake pipe damaged or excessively corroded
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Brake lining or pad: worn below 1.5mm
Steering
▲ 60.1% better
6.3 faults / 100 tests
Year avg: 15.8 / 100 tests
Visibility
▲ 2.8% better
20.6 faults / 100 tests
Year avg: 21.2 / 100 tests
Lights & Electrics
▼ 0.7% worse
69.4 faults / 100 tests
Year avg: 68.9 / 100 tests
  • Lamp emitted colour, position or intensity not in accordance with the requirements
  • A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
Wheels & Suspension
▲ 24.3% better
201.7 faults / 100 tests
Year avg: 266.4 / 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 suspension joint dust cover: severely deteriorated
Body/Structure
▲ 25.6% better
23.3 faults / 100 tests
Year avg: 31.3 / 100 tests
Equipment
▼ 2.7% worse
7.6 faults / 100 tests
Year avg: 7.4 / 100 tests
Other
▲ 46.8% better
14.8 faults / 100 tests
Year avg: 27.8 / 100 tests

Fault rate by mileage segment

Model    Year average
0 421 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: 2,562
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 1,798
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 1,555
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 1,542
A shock absorber damaged … or showing signs of severe leakage
ADVISORY
Occurrences: 795
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 697
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 674
A suspension joint dust cover: severely deteriorated
MINOR
Occurrences: 654
Lamp emitted colour, position or intensity not in accordance with the requirements
ADVISORY
Occurrences: 617
A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
FAIL
Occurrences: 460

Serious faults (Top 10)

A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
FAIL
Occurrences: 460
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 438
A suspension joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 398
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 344
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 295
Brake pipe damaged or excessively corroded
FAIL
Occurrences: 287
Lamp emitted colour, position or intensity not in accordance with the requirements
FAIL
Occurrences: 287
A shock absorber damaged … or showing signs of severe leakage
FAIL
Occurrences: 210
Service brake efficiency: below minimum requirement
FAIL
Occurrences: 207
A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 191