MOT failure data · 2025
Isuzu Trooper MOT problems
Across every Isuzu Trooper that failed its 2025 MOT, the defect testers recorded most often was joints constant velocity boot split or insecure, no longer prevents the ingress of dirt, on 5.55% of failure items. The broadest problem area was body, chassis, structure at 21.93%. These are recorded defects across the model, not a diagnosis of any one car.
Most common Isuzu Trooper MOT failures
| # | Recorded defect | Area | Share |
|---|---|---|---|
| 1 | Joints constant velocity boot split or insecure, no longer prevents the ingress of dirt | Body, chassis, structure | 5.55% |
| 2 | Chassis condition or chassis has excessive corrosion, seriously affecting its strength within 30cm of a body mounting | Body, chassis, structure | 4.08% |
| 3 | Position lamp not working | Lamps, reflectors and electrical equipment | 3.86% |
| 4 | Rigid brake pipes excessively corroded | Brakes | 3.57% |
| 5 | Prescribed areas prescribed area strength or continuity significantly reduced | Seat belts and supplementary restraint systems | 3.57% |
| 6 | Ball joint ball joint excessively worn | Suspension | 3.17% |
| 7 | Exhaust system has a major leak of exhaust gases | Body, chassis, structure | 3.17% |
| 8 | Linkage ball joints ball joint excessively worn | Suspension | 2.81% |
| 9 | Component mounting prescribed areas prescribed area excessively corroded significantly reducing structural strength | Suspension | 2.7% |
| 10 | Ball joint dust cover ball joint dust cover no longer prevents the ingress of dirt | Suspension | 2.45% |
Shares are of all recorded failure items for this model, so they sum to less than 100% — a single failed test often records several defects, and the long tail below the top 10 is not shown.
What this means if you are buying one
Use it as a viewing checklist. If you are looking at a Isuzu Trooper, these are the areas worth inspecting and worth asking about — and worth reading the car's own MOT history for, since a defect that keeps reappearing as an advisory is a better signal than any model-wide average.
The MOT record also has hard limits: it does not check the engine, clutch or gearbox, and it says nothing about outstanding finance, insurance write-off history, stolen markers or whether the mileage is genuine. Our used Isuzu Trooper buying guide covers what to check beyond the MOT.
Checking a specific Isuzu Trooper?
Enter its registration for finance, write-off, stolen, mileage and keeper history.
Other Isuzu models
Isuzu Trooper MOT FAQs
What does a Isuzu Trooper most commonly fail its MOT on?
The single most recorded defect on Isuzu Trooper cars failing their 2025 MOT was "joints constant velocity boot split or insecure, no longer prevents the ingress of dirt", appearing on 5.55% of failure items.
Does this mean my Isuzu Trooper will fail?
No. This is what testers recorded across every Isuzu Trooper that failed in 2025. It shows where this model tends to need attention, not the condition of any individual car. The Isuzu Trooper passed 67.89% of its initial tests.
How do I see a specific Isuzu Trooper's MOT history?
Enter its registration on our free MOT history check to see that car's own test results, advisories and recorded mileages.
See also: Isuzu Trooper MOT pass rate · used Isuzu Trooper buying guide · free MOT history check
Defect counts from the DVSA MOT Anonymised test-item data for 2025 (class 4 initial tests, failure items only — advisories and minor defects excluded), licensed under the Open Government Licence v3.0.