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Mercedes-benz GLA 250 EXCLUSIVE - 2021

48.9 faults per 100 tests
Year average for all cars of 2021 is 80.0 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Mercedes-benz GLA 250 EXCLUSIVE, model year 2021. Sample size: 1,491 cars, 3,447 tests and 1,685 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 1,491 cars

The 2021 Mercedes-Benz GLA 250 Exclusive has a significantly lower overall defect rate of 49 defects per 100 vehicles compared to the average of 79 defects per 100, marking a 38% improvement. This model excels particularly in categories such as brakes, steering, lights and electrics, and body structure, where it shows much fewer defects than the average vehicle. However, it does experience a higher rate of defects in the equipment category. Mileage-related trends indicate that defect rates increase with higher mileage, but the GLA 250 outperforms the average across all mileage segments.

Cars by mileage segment

Total: 1,491 cars

Categories

Brakes
▲ 91.3% better
3.5 faults / 100 tests
Year avg: 40.0 / 100 tests
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
Steering
▲ 85.7% better
0.1 faults / 100 tests
Year avg: 0.7 / 100 tests
Visibility
▲ 13.1% better
12.6 faults / 100 tests
Year avg: 14.5 / 100 tests
  • Wiper blade: defective
  • Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
  • Wiper blade: missing or obviously not clearing the windscreen
Lights & Electrics
▲ 85.7% better
1.6 faults / 100 tests
Year avg: 11.2 / 100 tests
Wheels & Suspension
▲ 13.2% better
75.8 faults / 100 tests
Year avg: 87.3 / 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
  • A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
  • Tyre tread depth not in accordance with the requirements
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
Body/Structure
▲ 66.7% better
0.7 faults / 100 tests
Year avg: 2.1 / 100 tests
Equipment
▼ 60.0% worse
2.4 faults / 100 tests
Year avg: 1.5 / 100 tests
Other
▲ 63.0% better
1.0 faults / 100 tests
Year avg: 2.7 / 100 tests

Fault rate by mileage segment

Model    Year average
0 268 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: 787
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 218
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 103
Wiper blade: defective
MINOR
Occurrences: 91
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 60
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 55
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 44
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 31
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 29
Wiper blade: missing or obviously not clearing the windscreen
PRS
Occurrences: 23

Serious faults (Top 10)

A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 103
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 55
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 44
Seat belt buckle missing, damaged or not functioning as intended
FAIL
Occurrences: 23
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 21
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 9
A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 7
Audible warning:
FAIL
Occurrences: 5
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 5
A seat belt: or flexible stalk damaged
FAIL
Occurrences: 5