Isuzu Trooper MOT pass rate and common problems

The Isuzu Trooper passed 62.3% of its initial MOT tests in 2025, 10 percentage points below the 72.3% UK average. The item testers recorded most often was joints constant velocity boot split or insecure, no longer prevents the ingress of dirt.

Checking a specific car? Its own results, advisories and recorded mileages are in a free MOT history check.

How the Trooper compares

Initial MOT tests in 2025, retests excluded. A car that failed and was repaired at the test station counts as a fail.

62.3%

Isuzu Trooper

68.4%

Isuzu average

72.3%

UK average, all cars

The Trooper runs 6.1 points behind the Isuzu average. It is 2nd of the 3 Isuzu models in the data. The average Trooper arrived at its test 24.9 years old with 139,671 miles recorded.

A pass rate records whether cars met the roadworthiness standard on test day. It is not a reliability score, and part of any gap reflects how old the tested cars were.

Trooper MOT pass rate by age

The same 2025 tests split by the car's age at test.

Age at testTestsPass ratevs UK average
6 to 10 years (small sample) 1 100% 27.7 pts above
11 years and over 2,050 62.3% 10 pts below

Too few tests fall into some age groups to compare them reliably. The UK average of 72.3% covers cars of every age, so compare like with like.

Where Trooper failures cluster

Every failure item recorded on Isuzu Trooper cars in 2025, grouped into the DVSA's test areas.

  • Body, chassis, structure20.8%
  • Brakes20.6%
  • Suspension18.6%
  • Lamps, reflectors and electrical equipment17.3%
  • Visibility6%
  • Noise, emissions and leaks5.6%

Body, chassis, structure and brakes together account for 41.4% of recorded failure items. These are recorded failures across the model, not faults every car has.

The 10 most common Trooper MOT failures

Specific items recorded on Isuzu Trooper cars that failed their 2025 MOT, as a share of all recorded failure items.

  1. 1Joints constant velocity boot split or insecure, no longer prevents the ingress of dirtBody, chassis, structure 5.3%
  2. 2Position lamp not workingLamps, reflectors and electrical equipment 4.5%
  3. 3Chassis condition or chassis has excessive corrosion, seriously affecting its strength within 30cm of a body mountingBody, chassis, structure 3.8%
  4. 4Rigid brake pipes excessively corrodedBrakes 3.3%
  5. 5Prescribed areas prescribed area strength or continuity significantly reducedSeat belts and supplementary restraint systems 3.3%
  6. 6Exhaust system has a major leak of exhaust gasesBody, chassis, structure 3%
  7. 7Wipers does not clear the windscreen effectivelyVisibility 3%
  8. 8Ball joint excessively wornSuspension 3%
  9. 9Linkage ball joints ball joint excessively wornSuspension 2.6%
  10. 10Component mounting prescribed areas prescribed area excessively corroded significantly reducing structural strengthSuspension 2.5%

Together these 10 items make up 34.4% of everything testers recorded against failed Isuzu Trooper cars. The rest is spread across many smaller items, and one failed test often records several at once.

What to look at on a Trooper

The recorded failures above, grouped by area, biggest first.

1

Body, chassis, structure

Recorded most often: joints constant velocity boot split or insecure, no longer prevents the ingress of dirt, chassis condition or chassis has excessive corrosion, seriously affecting its strength within 30cm of a body mounting and exhaust system has a major leak of exhaust gases. 12.1% of failure items.

2

Suspension

Recorded most often: ball joint excessively worn, linkage ball joints ball joint excessively worn and component mounting prescribed areas prescribed area excessively corroded significantly reducing structural strength. 8.1% of failure items.

3

Lamps, reflectors and electrical equipment

Recorded most often: position lamp not working. 4.5% of failure items.

4

Brakes

Recorded most often: rigid brake pipes excessively corroded. 3.3% of failure items.

The car's own MOT history matters more than any model average. A free MOT history check shows whether a specific Trooper has failed on these items before, or had them noted as advisories. Buying one? See the used Isuzu Trooper buying guide.

Already found one?

Check its finance, write-off, theft, mileage and keeper history with a £15 vehicle history report.

Isuzu Trooper MOT FAQs

What is the Isuzu Trooper MOT pass rate?

62.3% of Isuzu Trooper cars passed their initial MOT first time in 2025, from 2,051 tests. That is 10 percentage points below the 72.3% average for all cars, and ranks 469th of 575 models.

What does an Isuzu Trooper most commonly fail its MOT on?

The item testers recorded most often on Isuzu Trooper cars failing their 2025 MOT was joints constant velocity boot split or insecure, no longer prevents the ingress of dirt, on 5.3% of failure items. Next were position lamp not working (4.5%) and chassis condition or chassis has excessive corrosion, seriously affecting its strength within 30cm of a body mounting (3.8%).

Which area causes the most Isuzu Trooper MOT failures?

Across every recorded failure item, the largest area was body, chassis, structure at 20.8%, followed by brakes at 20.6%.

Does this mean every Isuzu Trooper has these problems?

No. These are the items testers recorded across every Isuzu Trooper that failed in 2025. They show where the model most often needs attention, not the condition of any individual car.

How do I see a specific Isuzu Trooper's MOT history?

Enter its registration on the free Carpeep MOT history check to see that car's own test results, failures, advisories and recorded mileages.

MOT figures are aggregated from the DVSA MOT Anonymised data set for 2025: class 4 initial tests, retests excluded, with failure items from failed tests (advisories and minor defects excluded), licensed under the Open Government Licence v3.0. MOT results describe roadworthiness at test, not mechanical reliability.