Part of the Vauxhall Insignia B (2017–2022) guide: best and worst years compared.
2021 Vauxhall Insignia petrol: common problems and MOT failures
What MOT testers find on the petrol Vauxhall Insignia first registered in 2021 (petrol cars only): we looked at the 163 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.
Small sample: there were only 163 MOTs of these cars during 2023–2025, so treat the percentages as rough. The known faults below don't depend on it.
Common 2021 Vauxhall Insignia petrol MOT failures and advisories
The share of 2021 Vauxhall Insignia petrol MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.
- Tyres31% of testsRough price £70–£150
At the viewing: Check the tread on all four tyres, including the inside edges, and look for cracks or bulges.
- Suspension9% of testsRough price £120–£400
At the viewing: Listen for knocks over speed bumps, and look behind each front wheel for a snapped coil spring.
- Wipers, windscreen and mirrors8% of testsRough price £15–£250
At the viewing: Check for chips in the driver's view, and test the wipers and washers.
- Brakes8% of testsRough price £150–£350
At the viewing: Look for a lip on the disc edges and feel for judder or pulling when braking firmly from about 40mph.
- Oil and fluid leaks6% of testsRough price £80–£600
At the viewing: Look under the engine and on the ground where the car is usually parked for fresh oil or fluid.
- Seats and seatbelts2% of testsRough price £80–£250
At the viewing: Pull each seatbelt sharply. It should lock, and retract cleanly.
Questions to ask the seller before buying a 2021 Vauxhall Insignia petrol
Ask before you travel to see it. A seller who knows the car will have answers, and receipts.
- Can I see the service history and receipts for any big jobs?
Looking at a Vauxhall Insignia?
Check the actual car: its own MOT history, mileage and what to ask the seller. Free, no sign-up.
Other years
Every year of the Vauxhall Insignia compared
| Year | MOT tests | Most flagged |
|---|---|---|
| 2022 | 633 | Tyres 39% |
| 2020 | 3,957 | Tyres 26% |
| 2019 | 23,888 | Tyres 29% |
| 2018 | 37,936 | Tyres 30% |
| 2017 | 46,306 | Tyres 32% |
| 2016 | 66,473 | Tyres 34% |
| 2015 | 85,058 | Tyres 36% |
| 2014 | 74,941 | Tyres 36% |
| 2013 | 61,358 | Tyres 37% |
| 2012 | 59,110 | Tyres 39% |
| 2011 | 66,448 | Suspension 40% |
| 2010 | 39,810 | Suspension 43% |
| 2009 | 27,884 | Suspension 47% |
| 2008 | 310 | Suspension 41% |
Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2023–2025, counting the MOTs of Vauxhall Insignia cars first registered in 2021. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score