2018 Vauxhall Insignia · 44,522 MOT tests
2018 Vauxhall Insignia reliability
2018 Vauxhall Insignias fail 17.9% of first MOT tests, 3% more MOT fails than the average car its age and mileage, ranking 6 of 12 Insignia years (44,522 DVSA tests, 2022 to 2024).
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- first-time fail rate (all Vauxhall Insignias: 31%)
- 17.9%
- first-time fail rate (all Vauxhall Insignias: 31%)
- fails than cars of the same age and mileage
- 3% more
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 5
- 51,496
- typical miles at its MOT, aged about 5
- MOT tests, 2022 to 2024
- 44,522
- MOT tests, 2022 to 2024
Year on year
2018 against the years either side
- 2017 cars: 10% more MOT fails than the average car its age (the 2018 car does better)
- 2019 cars: 7% more MOT fails than the average car its age (the 2018 car does better)
- Weak spot: exhaust, emissions and leaks, 2.9% of tests fail here (129% above cars of the same age and mileage).
- Strong point: lights and electrics, 33% 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 Vauxhall Insignia
Fail rate by area
- Tyres6%
- Brakes4.5%
- Windscreen, wipers and mirrors4.3%
- Lights and electrics3.2%
- Exhaust, emissions and leaks2.9%
- Body, chassis and structure1%
- Suspension0.5%
Average for cars of the same age and mileage
Top failures
Brake pads worn below 1.5mm 3.2%
Pads worn below 1.5mm lose stopping power and can damage discs, so replacement is needed before the car is driven.
Wiper blade not clearing windscreen 3.12%
Wipers that do not clear the windscreen reduce visibility in rain, which is a safety risk, so replace them.
Tyre tread below 1.6mm 1.88%
Tread below 1.6mm is illegal and reduces grip in wet conditions, so the tyre must be replaced.
Diesel engine warning light faulty 1.32%
A lit or non-working engine warning light can hide faults, so diagnosis is needed before buying.
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.
Tyre pressure monitoring system faulty 0.8%
A faulty tyre pressure monitor cannot warn about low tyre pressure, so check tyres manually and have the fault diagnosed.
Common advisories
Tyre worn close to legal limit (12.77%) · Brake pads wearing thin (12.47%) · Tyre slightly damaged or cracking (6.56%) · Brake disc pitted or scored (5.42%) · Child seat limits belt inspection (2.42%) · Brake discs showing some wear (2.19%)
Other years
Every Vauxhall Insignia year
The full picture: Vauxhall Insignia reliability. Before you pay for any Vauxhall Insignia, 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 Vauxhall Insignia reliable?
2018 Vauxhall Insignias fail 17.9% of first MOT tests, 3% more MOT fails than the average car its age and mileage, ranking 6 of 12 Insignia years (44,522 DVSA tests, 2022 to 2024).
What fails on a 2018 Vauxhall Insignia MOT?
Most often brake pads worn below 1.5mm (3.2% of tests), wiper blade not clearing windscreen (3.12% of tests), tyre tread below 1.6mm (1.88% of tests).
How many miles should a 2018 Vauxhall Insignia have done?
At its MOT aged about 5, a typical 2018 Vauxhall Insignia shows 51,496 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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