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Mercedes-benz GLA - 2018

103.4 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 GLA, model year 2018. Sample size: 18,164 cars, 39,941 tests and 41,316 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 18,164 cars

The 2018 Mercedes-Benz GLA has an overall defect rate of 103 per 100 vehicles, which is 14% lower than the average car of the same year. While tyre wear is noted, the model shows significant strengths in categories such as steering, visibility, and equipment, where defect rates are markedly lower than average. However, it does struggle with body and structure issues, having a higher defect rate in this area compared to the average. Notably, defect rates increase with mileage, particularly in the higher mileage segments, suggesting potential concerns as the vehicle ages.

Cars by mileage segment

Total: 18,164 cars

More model years for Mercedes-benz GLA

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
▲ 17.3% better
56.9 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
▲ 62.0% better
1.9 faults / 100 tests
Year avg: 5.0 / 100 tests
Visibility
▲ 25.2% better
10.4 faults / 100 tests
Year avg: 13.9 / 100 tests
Lights & Electrics
▲ 18.8% better
14.3 faults / 100 tests
Year avg: 17.6 / 100 tests
  • Lamp emitted colour, position or intensity not in accordance with the requirements
Wheels & Suspension
▲ 11.0% better
112.7 faults / 100 tests
Year avg: 126.7 / 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
  • Tyre tread depth not in accordance with the requirements
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • A suspension joint dust cover: severely deteriorated
Body/Structure
▼ 23.5% worse
6.3 faults / 100 tests
Year avg: 5.1 / 100 tests
  • A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
Equipment
▲ 45.5% better
1.2 faults / 100 tests
Year avg: 2.2 / 100 tests
Other
▲ 55.7% better
3.1 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: 10,207
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 7,165
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 4,367
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 3,635
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 2,039
Lamp emitted colour, position or intensity not in accordance with the requirements
ADVISORY
Occurrences: 1,334
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 895
A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 832
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 705
A suspension joint dust cover: severely deteriorated
MINOR
Occurrences: 643

Serious faults (Top 10)

Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 895
A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 832
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 705
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 496
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 489
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 376
A suspension joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 312
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 275
Lamp emitted colour, position or intensity not in accordance with the requirements
FAIL
Occurrences: 274
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 216