2018 Mazda 6 · 10,907 MOT tests
2018 Mazda 6 reliability
2018 Mazda 6s fail 14.1% of first MOT tests, 12% fewer MOT fails than the average car its age and mileage, ranking 5 of 17 6 years (10,907 DVSA tests, 2022 to 2024).
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- first-time fail rate (all Mazda 6s: 30%)
- 14.1%
- first-time fail rate (all Mazda 6s: 30%)
- fails than cars of the same age and mileage
- 12% fewer
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 4
- 42,267
- typical miles at its MOT, aged about 4
- MOT tests, 2022 to 2024
- 10,907
- MOT tests, 2022 to 2024
Year on year
2018 against the years either side
- 2017 cars: 11% fewer MOT fails than the average car its age (the 2018 car does better)
- 2019 cars: 22% fewer MOT fails than the average car its age (the 2018 car does worse)
- Weak spot: windscreen, wipers and mirrors, 3.9% of tests fail here (18% above cars of the same age and mileage).
- Strong point: lights and electrics, 49% fewer fails than comparable cars.
- Plates: a 2018 car carries a 67 plate (January–February 2018), or a 18 plate (March–August 2018), or a 68 plate (September–December 2018).
Common problems
What fails on a 2018 Mazda 6
Fail rate by area
- Tyres4.3%
- Windscreen, wipers and mirrors3.9%
- Brakes3.3%
- Lights and electrics2.1%
- Suspension1.7%
- Exhaust, emissions and leaks0.7%
- Number plates and VIN0.2%
Average for cars of the same age and mileage
Top failures
Wiper blade not clearing windscreen 2.6%
Wipers that do not clear the windscreen reduce visibility in rain, which is a safety risk, so replace them.
Brake pads worn below 1.5mm 2.15%
Pads worn below 1.5mm lose stopping power and can damage discs, so replacement is needed before the car is driven.
Tyre tread below 1.6mm 1.26%
Tread below 1.6mm is illegal and reduces grip in wet conditions, so the tyre must be replaced.
Tyre cut reaching ply or cords 1.21%
A cut reaching the ply or cords weakens the tyre and can cause a burst, so it must be replaced.
Headlamp aim set too low 0.75%
Headlamps aimed too low light the road poorly and reduce the driver's view ahead, especially at night.
Tyre ply or cords exposed 0.64%
Exposed ply or cords can let the tyre fail suddenly, so the tyre must be replaced before the car is driven.
Common advisories
Tyre worn close to legal limit (13.73%) · Brake pads wearing thin (11.08%) · Brake disc pitted or scored (9.95%) · Tyre slightly damaged or cracking (6.05%) · Child seat limits belt inspection (2.34%) · Tyre worn close to legal limit (1.93%)
Other years
Every Mazda 6 year
The full picture: Mazda 6 reliability. Before you pay for any Mazda 6, a Full Check (£9.99) shows finance, stolen and write-off records the MOT can't.
Source: DVSA anonymised MOT results, 2022 to 2024, class 4 normal tests.
Is a 2018 Mazda 6 reliable?
2018 Mazda 6s fail 14.1% of first MOT tests, 12% fewer MOT fails than the average car its age and mileage, ranking 5 of 17 6 years (10,907 DVSA tests, 2022 to 2024).
What fails on a 2018 Mazda 6 MOT?
Most often wiper blade not clearing windscreen (2.6% of tests), brake pads worn below 1.5mm (2.15% of tests), tyre tread below 1.6mm (1.26% of tests).
How many miles should a 2018 Mazda 6 have done?
At its MOT aged about 4, a typical 2018 Mazda 6 shows 42,267 miles. Much higher or lower is worth asking about.
What plate is a 2018 car?
A car first registered in 2018 carries a 67 plate (January–February 2018), or a 18 plate (March–August 2018), or a 68 plate (September–December 2018).
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