Vauxhall Insignia MOT failure rate and common faults

180,896 Vauxhall Insignia cars aged 3 to 20 took their MOT in 2025, and 32.6% failed at the first attempt. An average car of the same age failed 30.0% of the time, which makes the Vauxhall Insignia 9% more likely to fail than the typical car on the road. Here is what fails, and which years to look for.

32.6%

failed first time

180,896 MOT tests in 2025

+9%

vs same age average

average car of this age mix: 30.0%

157 of 208

age adjusted rank

among cars; 1 fails least

148.4

dangerous defects per 1,000

same age average: 109.6

What fails on a Vauxhall Insignia MOT

Failure items recorded per 1,000 tests, by part of the car, set against an average car with exactly the same spread of ages. A figure well above average is a weak spot worth checking before you buy.

Suspension172 1.2x average
Lights and electrics171 about average
Tyres122 1.3x average
Brakes99 about average
Windscreen, wipers and mirrors48 about average
Engine, emissions and leaks44 1.2x average
Body, chassis, exhaust and drive shafts33 about average
Wheels7 1.3x average
Seat belts and airbags5 43% below average
Steering5 82% below average
Number plates and VIN4 about average

The most common Vauxhall Insignia MOT failures

The individual failure items testers recorded most often, per 1,000 tests.

Failure itemAreaPer 1,000 tests
Coil spring: fractured or brokenSuspension69.7
Tread depth below requirements of 1.6mmTyres52.0
Brake pads: less than 1.5 mm thickBrakes40.7
Suspension arms: pin or bush excessively wornSuspension30.1
Wipers: does not clear the windscreen effectivelyWindscreen, wipers and mirrors26.1
Registration plate lamp(s): inoperative in the case of a single lamp or all lampsLights and electrics24.2
Tyres: has ply or cords exposedTyres22.0
Malfunction indicator lamp: inoperative or indicates a malfunctionEngine, emissions and leaks21.8
Headlamp: not working on dipped beamLights and electrics21.5
Shock absorbers: has a serious fluid leakSuspension18.8
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Vauxhall Insignia MOT failure rate by year

Every car fails more often as it ages, so each registration year is compared with the average for all cars of the same age. Years with fewer than 500 tests are left out.

First registeredTestsFailedSame age averageAverage mileage
202261918.6%11.4%37,000
202190915.9%12.8%47,200
20201,29216.6%14.1%54,500
20197,83119.1%16.5%68,300
201812,59421.1%19.1%73,300
201715,20624.6%21.8%82,500
201621,50531.7%25.1%93,400
201527,30532.9%28.1%105,700
201423,67835.1%31.4%114,900
201318,61535.6%34.3%117,400
201216,96437.6%36.6%120,600
201117,96138.2%38.8%118,100
20109,85539.7%40.7%118,000
20096,49840.1%41.8%116,600

Advisories to look for in a Vauxhall Insignia's MOT history

An advisory is a tester's warning that something is wearing but has not failed yet. These are the ones written most often on the Vauxhall Insignia, per 1,000 tests. If the car you are looking at has one of these, ask whether it has been fixed since.

  • Tread depth: worn close to legal limit/worn on edge374.7
  • Brake pads: wearing thin127.5
  • Suspension arms: pin or bush worn but not resulting in excessive movement117.6
  • Engine oil leaks: leak, but not excessive101.7
  • Tyres: slightly damaged/cracking or perishing100.5
  • Brake discs: worn, pitted or scored, but not seriously weakened99.6

Checking a used Vauxhall Insignia before you buy

Against cars of the same age, the Vauxhall Insignia fails more often than average on suspension, tyres and engine, emissions and leaks. Start there.

  • Suspension

    Drive over speed bumps with the radio off and listen for knocks. Look at the car side on: a corner sitting lower than the others often means a broken coil spring.

  • Tyres

    Check the tread across the full width of every tyre, inner edge included. Uneven wear points to worn suspension or out of line steering geometry.

  • Engine, emissions and leaks

    Start the car from cold and watch the exhaust for smoke, look underneath for oil or fuel leaks, and make sure the engine warning light comes on with the ignition and goes out once the engine runs.

Averages only take you so far. The specific car's MOT history shows whether it has already failed on any of these, how often advisories were ignored, and whether the mileage climbs steadily from test to test. Read our guide to reading a car's MOT history before you go to view it.

Fuel mix of the Vauxhall Insignia cars tested: Diesel 82%, Petrol 18%. Average age at test 10.7 years, average recorded mileage 103,600.

Vauxhall Insignia MOT questions

What is the Vauxhall Insignia MOT failure rate?

32.6% of Vauxhall Insignia cars failed their first MOT test of 2025, from 180,896 tests on vehicles aged 3 to 20. An average car with the same age mix failed 30.0% of the time, so the Vauxhall Insignia was 9% more likely to fail.

What fails most often on a Vauxhall Insignia MOT?

Suspension caused the most failure items, at 172 per 1,000 tests. The single most common failure item was "Coil spring: fractured or broken", recorded 69.7 times per 1,000 tests.

Which Vauxhall Insignia year has the best MOT record?

Measured against cars of the same age, 2009 registrations did best: 40.1% failed against an average of 41.8% for cars that age. Older cars always fail more often, so compare a year with its age group rather than with newer cars.

Does this tell me whether a particular Vauxhall Insignia will pass?

No. These are averages across every Vauxhall Insignia tested in 2025. The car in front of you has its own record: its full MOT history shows every pass, failure and advisory it has had, and it is free to view by registration.

Other Vauxhall models

Ranked close to the Vauxhall Insignia

How these figures are calculated

Source: DVSA Anonymised MOT tests and results, 2025 release. We count first tests of cars and small vans (class 4) aged 3 to 20, so a car that fails and is retested is counted once. A failure includes faults fixed and passed within the same visit. The same age average weights the national failure rate for each age by how many Vauxhall Insignia cars of that age were tested, so a model is never penalised for having an older fleet. Make and model are as recorded at the test; trim levels are combined. Full method and rankings.

Contains public sector information licensed under the Open Government Licence v3.0.