Mazda 6 - 2020
84.8 faults per 100 tests
Year average for all cars of 2020 is 91.3 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Mazda 6, model year 2020.
Sample size: 1,110 cars, 2,181 tests and 1,850 recorded faults.
0%
Less faults compared to the average car of same model year
Less faults compared to the average car of same model year
Quick summary
Total: 1,110 cars
The 2020 Mazda 6 has an overall defect rate of 85 per 100 vehicles, which is slightly better than the average of 90 per 100 for its year, showing a 5.5% improvement. Notably, the Mazda 6 excels in categories such as steering and lights & electrics, where it shows a significant reduction in defects compared to the average, with zero issues reported in steering. However, it does have a higher incidence of brake defects, with 73% of vehicles having issues compared to the yearly average of 49%. Mileage data indicates that defect rates rise with increased mileage, particularly in the 62,000–93,000 miles range. Overall, the Mazda 6 stands out for its reliability in key areas while facing challenges with braking performance.
Cars by mileage segment
Total: 1,110 cars
Categories
Brakes
▼ 44.1% worse
73.2 faults / 100 tests
Year avg: 50.8 / 100 tests
- Brake lining or pad: worn below 1.5mm
- Brake disc or drum: significantly and obviously worn
- Excessive fluctuation in brake effort through each wheel revolution
- Brake disc or drum: insecure, fractured or otherwise likely to fail
- Brake lining or pad: worn below 1.5mm
Steering
▲ 100.0% better
0.0 faults / 100 tests
Year avg: 1.5 / 100 tests
Visibility
▼ 5.7% worse
14.9 faults / 100 tests
Year avg: 14.1 / 100 tests
- Wiper blade: defective
- Wiper blade: missing or obviously not clearing the windscreen
- An obstruction: materially affecting the driver’s view of the road through the swept area of the windscreen or an obligatory external mirror not visible
- 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
▲ 65.2% better
3.9 faults / 100 tests
Year avg: 11.2 / 100 tests
- The aim of a headlamp is not within limits laid down in the requirements
- A lens defective: which has no effect on emitted light
- The aim of a headlamp is not within limits laid down in the requirements
- A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
- Product on the lens or light source which obviously reduces light intensity or changes emitted colour to other than white or yellow
Wheels & Suspension
▲ 22.4% better
75.7 faults / 100 tests
Year avg: 97.5 / 100 tests
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
- Tyre tread depth not in accordance with the requirements
- Tyre tread depth not in accordance with the requirements
- A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
- A suspension pin, bush, joint or bearing: excessively worn
Body/Structure
▲ 100.0% better
0.0 faults / 100 tests
Year avg: 2.4 / 100 tests
Equipment
▲ 53.3% better
0.7 faults / 100 tests
Year avg: 1.5 / 100 tests
- A seat belt: webbing or flexible stalk significantly stretched or weakened
- Audible warning:
- An SRS malfunction indicator lamp (MIL) indicates a system malfunction
- A seat belt:
- A seat belt:
Other
▲ 62.2% better
1.4 faults / 100 tests
Year avg: 3.7 / 100 tests
- Lambda coefficient outside the default limits or the range specified by the manufacturer
- Lambda coefficient outside the default limits or the range specified by the manufacturer
- Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
- Engine MIL inoperative or indicating a malfunction
Fault rate by mileage segment
Model
Year average
* Metric: faults per 100 tests.
Most common faults (Top 10)
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 438
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 326
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 306
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 177
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 67
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 63
Wiper blade: defective
MINOR
Occurrences: 50
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 45
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 43
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 35
Serious faults (Top 10)
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 45
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 35
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 28
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 21
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 21
Brake disc or drum: significantly and obviously worn
FAIL
Occurrences: 13
Lambda coefficient outside the default limits or the range specified by the manufacturer
FAIL
Occurrences: 5
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 4
A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
FAIL
Occurrences: 4
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 4