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Mercedes-benz S-CLASS - 2015

83.4 faults per 100 tests
Year average for all cars of 2015 is 174.5 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Mercedes-benz S-CLASS, model year 2015. Sample size: 2,687 cars, 6,243 tests and 5,208 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 2,687 cars

The 2015 Mercedes-Benz S-Class demonstrates a significantly lower overall defect rate of 83 per 100 vehicles compared to the yearly average of 170, marking a 51% improvement. The vehicle shows particularly strong performance in categories such as brakes and steering, with defect rates of 38% and less than 1% respectively, both notably better than the average. However, it exhibits higher defect rates in areas related to wheels and suspension, indicating some areas of concern. Mileage-related trends reveal that the defect rates increase with higher mileage, but the S-Class still maintains a better performance overall compared to the average vehicle of the same year.

Cars by mileage segment

Total: 2,687 cars

More model years for Mercedes-benz S-CLASS

1995 1996 1997 1998 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
▲ 54.7% better
38.4 faults / 100 tests
Year avg: 84.7 / 100 tests
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Brake disc or drum: significantly and obviously worn
  • Brake lining or pad: worn below 1.5mm
Steering
▲ 90.9% better
0.9 faults / 100 tests
Year avg: 9.9 / 100 tests
Visibility
▲ 36.6% better
10.2 faults / 100 tests
Year avg: 16.1 / 100 tests
  • Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
Lights & Electrics
▲ 78.4% better
6.7 faults / 100 tests
Year avg: 31.0 / 100 tests
Wheels & Suspension
▲ 45.0% better
98.1 faults / 100 tests
Year avg: 178.3 / 100 tests
  • Tyre tread depth not in accordance with the requirements
  • A suspension pin, bush, joint or bearing: excessively worn
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
  • A suspension pin, bush, joint or bearing: excessively worn
Body/Structure
▲ 82.1% better
2.1 faults / 100 tests
Year avg: 11.7 / 100 tests
Equipment
▲ 17.5% better
3.3 faults / 100 tests
Year avg: 4.0 / 100 tests
Other
▲ 46.2% better
7.1 faults / 100 tests
Year avg: 13.2 / 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
0 342 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: 1,441
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 499
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 431
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 313
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 303
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 235
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 169
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 151
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 142
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 142

Serious faults (Top 10)

A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 142
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 121
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 97
Any fracture or welding defect on a wheel
FAIL
Occurrences: 59
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 52
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 47
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 35
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 25
A shock absorber damaged … or showing signs of severe leakage
FAIL
Occurrences: 25
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 20