Skip to main content

Mercedes-benz S-CLASS - 1999

265.9 faults per 100 tests
Year average for all cars of 1999 is 349.1 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 1999. Sample size: 171 cars, 340 tests and 904 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 171 cars

The 1999 Mercedes-Benz S-Class has an overall defect rate of 266 defects per 100 vehicles, which is significantly lower than the yearly average of 345 defects, showing a 23% improvement. Notably, the model performs exceptionally well in the steering category, with a defect rate of just 8%, compared to the average of 25%. It also shows better results in wheels, suspensions, and axles, as well as body structure, indicating a strong build quality. In terms of mileage, defect rates increase steadily with distance, particularly after 124,000 miles, reflecting common wear trends. Overall, this vehicle stands out positively in several key areas compared to the average car of the same year.

Cars by mileage segment

Total: 171 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
▲ 4.9% better
145.9 faults / 100 tests
Year avg: 153.4 / 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
▲ 70.7% better
7.6 faults / 100 tests
Year avg: 25.9 / 100 tests
Visibility
▼ 12.8% worse
30.0 faults / 100 tests
Year avg: 26.6 / 100 tests
Lights & Electrics
▲ 0.8% better
72.4 faults / 100 tests
Year avg: 73.0 / 100 tests
  • Headlamp reflector or lens: slightly defective
Wheels & Suspension
▲ 26.8% better
195.3 faults / 100 tests
Year avg: 266.9 / 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 suspension component: excessively damaged or corroded
  • The strength or continuity of the load bearing structure within 30cm … is significantly reduced or inadequately repaired
Body/Structure
▲ 61.6% better
29.4 faults / 100 tests
Year avg: 76.5 / 100 tests
Equipment
▲ 44.8% better
10.6 faults / 100 tests
Year avg: 19.2 / 100 tests
Other
▲ 28.1% better
40.6 faults / 100 tests
Year avg: 56.5 / 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
0 538 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: 103
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 66
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 50
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 49
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 45
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 41
A suspension component: excessively damaged or corroded
ADVISORY
Occurrences: 29
The strength or continuity of the load bearing structure within 30cm … is significantly reduced or inadequately repaired
ADVISORY
Occurrences: 28
Headlamp reflector or lens: slightly defective
MINOR
Occurrences: 25
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 24

Serious faults (Top 10)

Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 17
The strength or continuity of the load bearing structure within 30cm … is significantly reduced or inadequately repaired
FAIL
Occurrences: 9
An SRS malfunction indicator lamp (MIL) indicates a system malfunction
FAIL
Occurrences: 8
A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
FAIL
Occurrences: 7
Lambda coefficient outside the default limits or the range specified by the manufacturer
FAIL
Occurrences: 7
A suspension joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 7
Lamp emitted colour, position or intensity not in accordance with the requirements
FAIL
Occurrences: 7
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 7
Exhaust system has a major leak or is insecure
FAIL
Occurrences: 6
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 5