Vauxhall Insignia MOT reliability

Vauxhall Insignias passed their MOT first time 67% of the time across 180,901 tests in 2025. 152,702 are still licensed in Great Britain.

First-time pass rate

67%

MOTs analysed

180,901

Still licensed (GB)

152,702

Body type

Sedan

Pass rate by year of first registration

Older cars fail more often, so compare a car with others of the same age. Years with very few MOTs can show extreme pass rates, even 0% or 100%, so give more weight to years with more tests.

In detail:

First registered

2021 diesel

830 MOTs

Passed first time 84%. Typical mileage 43,861 (most between 30,342 and 62,631).

2021: 60% → 2022: 100% → 2023: 88% → 2024: 84% → 2025: 84%

Most common failures

Wipers: does not clear the windscreen effectively (4.0%)
Brake pads: less than 1.5 mm thick (3.0%)
Malfunction indicator lamp: inoperative or indicates a malfunction (2.2%)
Condition: has a cut in excess of the requirements deep enough to reach the ply or cords (1.8%)
Tyre pressure monitoring system: malfunctioning or obviously inoperative (1.1%)

2021 petrol

79 MOTs

These figures come from 79 MOT tests. That's a fairly small number of cars, so they may not be typical of these cars as a whole.

Passed first time 90%. Typical mileage 33,857 (most between 22,682 and 52,320).

2023: 100% → 2024: 78% → 2025: 90%

Most common failures

Wipers: does not clear the windscreen effectively (5.1%)
Condition: has a bulge, caused by separation or partial failure of its structure (2.5%)
Malfunction indicator lamp: inoperative or indicates a malfunction (2.5%)
Tread depth below requirements of 1.6mm (1.3%)
Catalyst emissions: Lambda reading after 2nd fast idle outside specified limits (1.3%)

Where 2021 Insignias fail

Wheels & tyres

4.9%

Visibility & wipers

4.5%

Brakes

4.0%

Exhaust, emissions & leaks

2.4%

Lights & electrics

2.3%

Body, structure & corrosion

1.1%

Suspension & axles

0.7%

Looking at a particular car?

See its own MOT history, mileage and red flags, compared with these figures. Free.

Based on 2025 initial MOT tests in DVSA's anonymised MOT dataset (cars and light vans). Contains public sector information licensed under the Open Government Licence v3.0. Model details: Vehicle data by VehiclesDB.