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Mercedes-benz CLS - 2018

86.0 faults per 100 tests
Year average for all cars of 2018 is 123.2 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Mercedes-benz CLS, model year 2018. Sample size: 1,225 cars, 2,966 tests and 2,550 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 1,225 cars

The 2018 Mercedes-Benz CLS has an overall defect rate of 86 per 100 vehicles, significantly lower than the average of 120 per 100, marking a 28% improvement. The model shows high defect rates at lower mileages, particularly for vehicles with 0–31,000 miles and 31,000–62,000 miles, but performs better in the higher mileage ranges. Notably, the CLS excels in several categories, including brakes, steering, and visibility, with defect rates far below the average in these areas. There are no significant categories where the CLS performs worse than average, indicating a strong overall reliability compared to its peers.

Cars by mileage segment

Total: 1,225 cars

More model years for Mercedes-benz CLS

2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021

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
▲ 34.7% better
44.9 faults / 100 tests
Year avg: 68.8 / 100 tests
  • Brake lining or pad: worn below 1.5mm
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Brake disc or drum: significantly and obviously worn
Steering
▲ 88.0% better
0.6 faults / 100 tests
Year avg: 5.0 / 100 tests
Visibility
▲ 61.9% better
5.3 faults / 100 tests
Year avg: 13.9 / 100 tests
Lights & Electrics
▲ 83.0% better
3.0 faults / 100 tests
Year avg: 17.6 / 100 tests
Wheels & Suspension
▲ 11.7% better
111.9 faults / 100 tests
Year avg: 126.7 / 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 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
Body/Structure
▲ 31.4% better
3.5 faults / 100 tests
Year avg: 5.1 / 100 tests
Equipment
▲ 95.5% better
0.1 faults / 100 tests
Year avg: 2.2 / 100 tests
Other
▲ 62.9% better
2.6 faults / 100 tests
Year avg: 7.0 / 100 tests

Fault rate by mileage segment

Model    Year average
0 307 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: 650
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 233
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 222
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 214
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 189
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 155
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 140
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 88
Any fracture or welding defect on a wheel
FAIL
Occurrences: 72
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 58

Serious faults (Top 10)

A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 140
Any fracture or welding defect on a wheel
FAIL
Occurrences: 72
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 58
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 57
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 49
A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 26
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 22
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 14
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 8
A wheel: with a loose or missing wheel nut, bolt or stud
FAIL
Occurrences: 7