Vauxhall Insignia Mk2 (B) Grand Sport (2017-2022) reliability
Vauxhall Insignia Mk2 (B) Grand Sport built around 2018: more dangerous faults than average
Testers find a dangerous fault on Vauxhall Insignia Mk2 (B) Grand Sport models built around 2018 more often than on similar cars the same age. Look closely at the tyres on any car you view.
Looking at a Vauxhall Insignia Mk2 (B) Grand Sport?
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Key figure
7% of MOT tests on Vauxhall Insignia Mk2 (B) Grand Sport models built around 2018 found a fault the tester marked as dangerous, against 5% for similar cars the same age.
Most common issue
The most common MOT issue on Vauxhall Insignia Mk2 (B) Grand Sport models built around 2018 involves the tyres.
Based on 46,399 tests of Insignia models registered 2017-2022.
About 1 in 6 diesel Insignia cars registered in 2022 (17.8%) failed their first MOT.
Based on 546 first MOTs (DVSA MOT results, 2025).
About 1 in 30 Insignia Mk2 (B) Grand Sport MOTs (3.1%) failed and still hadn't passed 3 days later. That's for cars built around 2018 (7 years old), all fuels combined.
Based on 18,497 tests (DVSA MOT results, 2025). A fail that passed a retest within 3 days, even the same day, isn't counted. Nor is a fail with no later MOT on record.
About 1 in 15 Insignia Mk2 (B) Grand Sport MOTs (7.2%) found at least one dangerous defect. These are cars built around 2018 (7 years old).
Based on 18,497 tests (DVSA MOT results, 2025). Dangerous is the most serious grade an MOT gives: a direct risk to road safety.
Mk2 (B) Grand Sport fail rate by age
Fail rate is the share of MOT tests that ended in a fail. Retests count as tests. How we count fail rates Build years are worked out from age, so they are approximate. Tests counted are 2025 MOTs. Highest fail rate at 8 years old.
How the Insignia Mk2 (B) Grand Sport compares
At each age below, see how the Insignia Mk2 (B) Grand Sport holds up against other cars the same age. The averages combine all fuel types.
Based on 220,525 tests across 11 Vauxhall models, built around 2018 (7 years old).
Fail rate is the share of MOT tests that ended in a fail. Retests count as tests. How we count fail rates Build years are worked out from age, so they are approximate. Tests counted are 2025 MOTs.
What to check before viewing
The model's most common MOT issues, turned into things you can ask about or look for.
Independent inspection
High priorityHave an independent specialist inspect the car before you commit.
Brake pads
High priorityAsk when the pads were last replaced and check the warning-light history.
Brake discs
High priorityAsk for the date and mileage of the last disc replacement; visually check for a deep wear lip and rust pitting on each disc.
Tyres
Worth checkingCheck tread depth across the full width on all four; uneven wear suggests alignment or suspension issues.
Vehicle-specific check
Worth checkingCheck the car’s number plate on MOT Wise to see its own MOT history and any recalls for its build years.
Other hatchbacks to compare
Other hatchbacks, with each one's figures taken at the same age as the Insignia Mk2 (B) Grand Sport.
- 1
Mini
Same body type, tested at the same age
- Fail rate
- 12.3%
- Still registered at 10 years
- 95.6%
Lower fail rate: 12.3%, against 18.6% for the Vauxhall Insignia Mk2 (B) Grand Sport, both built around 2018.
Some figures could not be compared for these two cars. So this comparison uses the fail rate, share still registered and recalls only.
50,561 MOT tests on cars built around 2018
- 2
Toyota Prius
Same body type, tested at the same age
- Fail rate
- 11.1%
- Fail, no pass in 3 days
- 0.9%
- Dangerous
- 3.5%
- Still registered at 10 years
- 94.4%
Lower fail rate: 11.1%, against 18.6% for the Vauxhall Insignia Mk2 (B) Grand Sport, both built around 2018.
5 critical recall campaigns matching this model/build period.
17,367 MOT tests on cars built around 2018
- 3
Lexus CT
Same body type, tested at the same age
- Fail rate
- 10.5%
- Fail, no pass in 3 days
- 1.1%
- Dangerous
- 4.2%
- Still registered at 10 years
- 88.2%
Lower fail rate: 10.5%, against 18.6% for the Vauxhall Insignia Mk2 (B) Grand Sport, both built around 2018.
3,255 MOT tests on cars built around 2018
- 4
Suzuki SX4
Same body type, tested at the same age
- Fail rate
- 13.5%
Lower fail rate: 13.5%, against 18.6% for the Vauxhall Insignia Mk2 (B) Grand Sport, both built around 2018.
Some figures could not be compared for these two cars. So this comparison uses the fail rate and recalls only.
3,314 MOT tests on cars built around 2018
- Fail rate
- = the share of MOT tests that ended in a fail. Retests count as tests.
- Fail, no pass in 3 days
- = the share of MOT tests that failed and still hadn't passed 3 days later. A fail that passed a retest within 3 days, even the same day, isn't counted.
- Dangerous
- = the share of MOT tests where the tester marked a fault as dangerous. It is against the law to drive the car until it is fixed.
- Still registered at 10 years
- = the share of cars still registered (taxed or declared off the road) 10 years after they were first registered.
Recall context
23 recalls in all13 of the 23 Insignia Mk2 (B) Grand Sport recalls cover cars built in these years.
- 1 Critical
- 12 more
Top concerns
- The clip of a fuel line bundle may chafe against the fuel pump return hose
- Affected vehicles may not conform to regulatory emission requirements EU R83.
- The hydraulic brake compensation (vacuum) pump may not get activated .
For the exact car, check GOV.UK's recall checker with the number plate.
What has gone wrong on Insignia Mk2 (B) Grand Sport cars built around 2018
The share of diesel cars that have ever failed an MOT on each part of the car. Based on 635 cars.
How Insignia Mk2 (B) Grand Sport cars have aged
How Insignia Mk2 (B) Grand Sport cars have aged
How fail rates have changed as these cars got older. Each line follows cars first registered in about the same year across several years of MOT data. Not a prediction for any one car.
Some lines cover only a year or two, so read this as a rough guide.
How each part holds up as Mk2 (B) Grand Sport cars age
How each part holds up as Mk2 (B) Grand Sport cars age
The share of diesel cars built 2017-2020 that have ever failed an MOT on each part of the car. Rates usually rise with age, but can dip slightly as cars leave the road.
| Part of the car | 6 years | 7 years | 8 years |
|---|---|---|---|
| Suspension | 2% | 3% | 18% |
| Brakes | 19% | 22% | 23% |
| Emissions | 13% | 16% | 12% |
| Tyres | 21% | 30% | 31% |
| Lighting | 6% | 7% | 14% |
| Drivetrain | 1% | No figure | 1% |
| Corrosion | 0% | 0% | 2% |
Based on diesel cars in the 2017-2020 build-year band, from 248 to 1,009 cars at each age.
Mk2 (B) Grand Sport variants compared
Insignia Mk2 (B) Grand Sport variants built around 2018
The fail rate for each Insignia Mk2 (B) Grand Sport variant, grouped by fuel. Each row counts fails per MOT test, the same way as the main fail rate chart.
Diesel
- INSIGNIA19.9%13,218 tests
Petrol
- INSIGNIA15.3%5,277 tests
Most common issues on Vauxhall Insignias of this age
This list covers every Vauxhall Insignia built around 2018, whichever generation it is. We don't have a defect list for the Mk2 (B) Grand Sport on its own.
Most common advisories and fails
In order of the share of MOT tests that recorded each one
- 120.5%Advisory
Tyre worn close to the legal limit or worn on the edge
- 215.3%Advisory
Brake pads wearing thin
- 310.4%Advisory
Tyre slightly damaged, cracking or perishing
- 48.3%Advisory
Brake disc worn, pitted or scored, but not seriously weakened
- 54.9%Advisory
Oil leak, but not excessive
Based on 18,497 tests
Looking at a Vauxhall Insignia Mk2 (B) Grand Sport?
Enter its number plate to see its full MOT history, risk rating and running costs.
Frequently asked questions
Built around 2018 (7 years old), the Vauxhall Insignia Mk2 (B) Grand Sport (2017-2022) fails MOTs at about the rate typical for this age. This is based on 18,497 7-year-old MOT tests from DVSA data. Each retest counts as a test.