2018 Audi A3 · 98,834 MOT tests
2018 Audi A3 reliability
2018 Audi A3s fail 10.9% of first MOT tests, 30% fewer MOT fails than the average car its age and mileage, ranking 5 of 24 A3 years (98,834 DVSA tests, 2022 to 2024).
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- first-time fail rate (all Audi A3s: 24.4%)
- 10.9%
- first-time fail rate (all Audi A3s: 24.4%)
- fails than cars of the same age and mileage
- 30% fewer
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 5
- 39,722
- typical miles at its MOT, aged about 5
- MOT tests, 2022 to 2024
- 98,834
- MOT tests, 2022 to 2024
Year on year
2018 against the years either side
- 2017 cars: 34% fewer MOT fails than the average car its age (the 2018 car does worse)
- 2019 cars: 25% fewer MOT fails than the average car its age (the 2018 car does better)
- Weak spot: tyres, 6% of tests fail here (16% above cars of the same age and mileage).
- Strong point: lights and electrics, 61% 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 Audi A3
Fail rate by area
- Tyres6%
- Brakes1.7%
- Windscreen, wipers and mirrors1.5%
- Lights and electrics1.5%
- Suspension0.8%
- Exhaust, emissions and leaks0.4%
- Seat belts and airbags0.3%
Average for cars of the same age and mileage
Top failures
Tyre tread below 1.6mm 1.8%
Tread below 1.6mm is illegal and reduces grip in wet conditions, so the tyre must be replaced.
Tyre cut reaching ply or cords 1.36%
A cut reaching the ply or cords weakens the tyre and can cause a burst, so it must be replaced.
Brake pads worn below 1.5mm 1.09%
Pads worn below 1.5mm lose stopping power and can damage discs, so replacement is needed before the car is driven.
Tyre ply or cords exposed 1.09%
Exposed ply or cords can let the tyre fail suddenly, so the tyre must be replaced before the car is driven.
Tyre bulge from structural failure 0.6%
A bulge means the tyre's structure has failed and it could burst suddenly, so it must be replaced at once.
Windscreen washer fluid insufficient 0.5%
Washers are not supplying enough liquid, so the windscreen cannot be cleared properly, which is a safety issue.
Common advisories
Tyre worn close to legal limit (11.29%) · Brake pads wearing thin (8.6%) · Tyre slightly damaged or cracking (5.58%) · Brake disc pitted or scored (3.07%) · Nail in tyre, monitor (1.81%) · Tyre has a shallow cut (1.77%)
Other years
Every Audi A3 year
The full picture: Audi A3 reliability. Before you pay for any Audi A3, 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 Audi A3 reliable?
2018 Audi A3s fail 10.9% of first MOT tests, 30% fewer MOT fails than the average car its age and mileage, ranking 5 of 24 A3 years (98,834 DVSA tests, 2022 to 2024).
What fails on a 2018 Audi A3 MOT?
Most often tyre tread below 1.6mm (1.8% of tests), tyre cut reaching ply or cords (1.36% of tests), brake pads worn below 1.5mm (1.09% of tests).
How many miles should a 2018 Audi A3 have done?
At its MOT aged about 5, a typical 2018 Audi A3 shows 39,722 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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