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Mercedes-benz GLC - 2017

100.1 faults per 100 tests
Year average for all cars of 2017 is 137.4 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Mercedes-benz GLC, model year 2017. Sample size: 14,961 cars, 34,085 tests and 34,127 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 14,961 cars

The 2017 Mercedes-Benz GLC has a lower overall defect rate than the average car of the same year, with 100 defects per 100 vehicles compared to the average of 134. Notably, the GLC performs significantly better in several categories, such as brakes, where it has 55 defects per 100 vehicles compared to the average of 71, and steering, with just 1 defect per 100 against the average of 5. This model shows a steady increase in defect rates as mileage increases, especially in the highest mileage range (over 124,000 miles), suggesting a trend that warrants attention for older vehicles. Overall, the GLC stands out for its reliability in key areas, making it a solid choice within its segment.

Cars by mileage segment

Total: 14,961 cars

More model years for Mercedes-benz GLC

2015 2016 2017 2018 2019 2020 2021 2022

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
▲ 24.7% better
54.6 faults / 100 tests
Year avg: 72.5 / 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
▲ 89.3% better
0.6 faults / 100 tests
Year avg: 5.6 / 100 tests
Visibility
▲ 32.4% better
9.8 faults / 100 tests
Year avg: 14.5 / 100 tests
  • Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
Lights & Electrics
▲ 78.9% better
4.3 faults / 100 tests
Year avg: 20.4 / 100 tests
Wheels & Suspension
▲ 14.5% better
122.3 faults / 100 tests
Year avg: 143.1 / 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 pin, bush, joint or bearing: excessively worn
  • Tyre tread depth not in accordance with the requirements
Body/Structure
▲ 48.6% better
3.6 faults / 100 tests
Year avg: 7.0 / 100 tests
Equipment
▲ 40.7% better
1.6 faults / 100 tests
Year avg: 2.7 / 100 tests
Other
▲ 63.3% better
3.3 faults / 100 tests
Year avg: 9.0 / 100 tests

Fault rate by mileage segment

Model    Year average
0 318 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: 10,091
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 3,595
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 3,414
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 2,991
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 2,431
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 2,148
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 1,395
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 861
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 765
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 595

Serious faults (Top 10)

A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 1,395
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 765
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 468
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 457
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 285
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 262
A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 220
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 212
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 187
Brake lining or pad: worn down to wear indicator
FAIL
Occurrences: 117