1,954 tests in 2025
Isuzu Trooper reliability and MOT pass rate
67.6% passed first time. The 32.4% fail rate is 9.8 points worse than the all-car average, on a median example 25 years old with 135,161 miles.
Pass rate
67.6%
22.6% of all cars failed; 32.4% of these did.
Fixed on the day
5.5%
Passed after a defect was put right during the visit.
Median at test
135,161 mi
25 years old.
Fail rate by age
| Age at test | Tests | Fail rate |
|---|---|---|
| 3-5 years | 0 | — |
| 6-9 years | 0 | — |
| 10-13 years | 2 | — |
| 14+ years | 1,952 | 32.5% |
What the Trooper fails on
Share of failed tests with at least one fail item in each DVSA inspection section. A test can fail in several sections at once.
- Body, chassis, structure18 dangerous50.5%
- Brakes117 dangerous45.1%
- Suspension22 dangerous44.2%
- Lamps, reflectors and electrical equipment7 dangerous35.8%
- Noise, emissions and leaks4 dangerous20.2%
- Visibility17.2%
- Seat belts and supplementary restraint systems14.4%
- Steering4 dangerous8.7%
Is the Trooper getting worse?
The fail rate fell 0.3 points to 32.4% from 2022 to 2025 while the median one tested aged 4 years. Ageing alone would predict about -3.3 points, so it is getting worse faster than age explains.
| Year | Tests | Median age | Fail rate | All cars | |
|---|---|---|---|---|---|
| 2022 | 3,186 | 21 | 32.7% | 22.5% | |
| 2023 | 2,745 | 22 | 31.4% | 22.8% | |
| 2024 | 2,133 | 24 | 34.5% | 23.2% | |
| 2025 | 1,794 | 25 | 32.4% | 22.6% |
Fail rate is first attempts at class 4 tests. Median age is the age of a typical Trooper at its test that year, and it is the number to watch: across the whole fleet each extra year of age adds roughly 1.9 points to the fail rate, so a model whose age and fail rate rise together is simply getting older.
The exact defects that fail it
Every failure item DVSA recorded against a Trooper in 2025, counted by how many tests each one appeared on.
- 1Joints: constant velocity boot split or insecure, no longer prevents the ingress of dirt122 tests
- 2Position lamp: not working85 tests
- 3Exhaust system: has a major leak of exhaust gases81 tests
- 4Prescribed areas: prescribed area strength or continuity significantly reduced64 tests
- 5Rigid brake pipes: excessively corroded63 tests
- 6Chassis condition: or chassis has excessive corrosion, seriously affecting its strength within 30cm of a body mounting59 tests
- 7Ball joint: ball joint excessively worn57 tests
- 8Ball joint dust cover: ball joint dust cover no longer prevents the ingress of dirt51 tests
What wears out first
Advisories are the tester flagging wear that is still legal. A typical Trooper collects 3.99 of them per test, and these are the ones that come up most. Treat it as the running-repairs list for the next year or two.
- 1Engine oil leaks: leaking excessively from engine505 tests
- 2Rigid brake pipes: excessively corroded465 tests
- 3Wheel bearings: has excessive play303 tests
- 4Chassis condition: corroded to the extent that the rigidity of the assembly is significantly reduced179 tests
- 5Brake discs: in such a condition that it is seriously weakened161 tests
- 6Condition: has a tear, caused by separation or partial failure of its structure156 tests
- 7Exhaust system: has a major leak of exhaust gases154 tests
- 8Tread depth: tread depth below requirements of 1.6mm153 tests
Questions
What is the Isuzu Trooper MOT pass rate?
67.6% of the 1,954 Isuzu Trooper first-attempt MOTs in 2025 passed. The fail rate of 32.4% compares with 22.6% across all cars. A further 5.5% passed after a defect was fixed during the test visit.
What does a Isuzu Trooper usually fail on?
The single most common failure is "Joints: constant velocity boot split or insecure, no longer prevents the ingress of dirt", recorded on 122 failed tests, followed by "Position lamp: not working" and "Exhaust system: has a major leak of exhaust gases". By section, body, chassis, structure appears in 50.5% of failures, brakes appears in 45.1% of failures, suspension appears in 44.2% of failures.
Does age change the odds?
Sharply. At 3 to 5 years old the fail rate was n/a%; at 14+ years it was 32.5%. The median Isuzu Trooper tested in 2025 was 25 years old with 135,161 miles.
Is the Isuzu Trooper getting less reliable?
The fail rate fell 0.3 points to 32.4% from 2022 to 2025 while the median one tested aged 4 years. Ageing alone would predict about -3.3 points, so it is getting worse faster than age explains.
First-attempt class 4 tests, 2025, from DVSA’s anonymised MOT data (OGL v3, retrieved 2026-09-12). DVSA records newer cars trim by trim; this page adds every Trooper trim together. Year-on-year figures come from the same DVSA extracts for 2026 and earlier years. Full method on the pass rates hub.
DVSA has published 3 safety recalls naming the Isuzu Trooper: Isuzu Trooper recalls.
Other Isuzu models
Checking a particular Trooper?
The odds above are the model. The car in front of you has its own record: every test, every advisory, the mileage at each one.
Due a test? Find an approved MOT station near you.