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Common problems by part

Isuzu D-Max body and structure problems

DVSA MOT tests 2022–2025 · 17,530 MOT tests · Updated

At 8 years, 6.6 in 100 MOT tests of the Isuzu D-Max failed on body and structure, against 1.8 for all class 4 vehicles the same age (all test years; 17,530 MOT tests) [1].

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  • Against all class 4 vehicles the same age: fails 3.6–4.0× as often as all class 4 vehicles the same age (all test years), 1,165 MOT tests with a fail
  • When it starts: clear of 1.2 times from 3 years and at every older age seen
  • Most common fail: Exhaust system: has a major leak of exhaust gases, 4.8 per 100 MOT tests

Figures are for the model as a whole, not for one car.

What the MOT tests show

What we know

6.6 fails per 100 MOT tests at 8 years, against 1.8 for all class 4 vehicles tested at 8 (all test years). The Isuzu D-Max fails more often here.

Why it matters

A body and structure fail stops the car passing until it is fixed; the most common one is rated major by DVSA.

What to check

Look under the sills, jacking points and rear subframe for rot, bubbling or fresh underseal over a repair, and check every door, bonnet and boot shuts properly.

The Isuzu D-Max is a commercial or van-based vehicle: it is compared with all class 4 vehicles, cars and vans together, so part of any difference can come from how vans are used.

Isuzu D-Max body and structure fails by age

Isuzu D-Max body and structure fails per 100 MOT tests by ageSolid line: the Isuzu D-Max. Dashed line: all cars the same age. The table below lists every value.05103 years: 0.8 per 100 (all cars 0.3), 13,051 MOT tests34 years: 1.0 per 100 (all cars 0.3), 13,695 MOT tests45 years: 2.0 per 100 (all cars 0.5), 14,927 MOT tests56 years: 3.7 per 100 (all cars 0.8), 16,742 MOT tests67 years: 5.5 per 100 (all cars 1.3), 17,508 MOT tests78 years: 6.6 per 100 (all cars 1.8), 17,530 MOT tests89 years: 7.4 per 100 (all cars 2.3), 15,887 MOT tests910 years: 7.8 per 100 (all cars 2.9), 12,652 MOT tests1011 years: 8.3 per 100 (all cars 3.5), 7,778 MOT tests1112 years: 10.2 per 100 (all cars 4.3), 3,823 MOT tests1213 years: 10.5 per 100 (all cars 5.0), 1,184 MOT tests13
Fails per 100 MOT tests by age, all first-use years pooled. Isuzu D-Max All class 4 vehicles the same age
AgeMOT testsFails per 100All class 4 vehicles the same age
313,0510.80.3
413,6951.00.3
514,9272.10.5
616,7423.70.8
717,5085.51.3
817,5306.61.8
915,8877.42.3
1012,6527.82.9
117,7788.33.5
123,82310.24.3
131,18410.55.0

All first-use years of the Isuzu D-Max pooled at each age, against all class 4 vehicles at that age over all 2022–2025 test years.

What fails in the body and structure at 8 years

Fails

Advisories (not fails)

Replace leaking exhaust section cost

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By engine and fuel

  • 2.5 diesel: 7.0 per 100 at 8 years, fails 3.1–3.5× as often as diesel class 4 vehicles the same age (all test years; 15,326 MOT tests)
  • 1.9 diesel: 4.1 per 100 at 8 years, about average for diesel class 4 vehicles the same age (all test years; 2,186 MOT tests)

How to check on a test drive

Look under the sills, jacking points and rear subframe for rot, bubbling or fresh underseal over a repair, and check every door, bonnet and boot shuts properly.

The most common advisory here in MOT records: Exhaust system: has a minor leak of exhaust gases.

Check one Isuzu D-Max, not the average

The figures here describe Isuzu D-Max cars as a group. These free tools answer for one car. Each line says what the tool reads.

Other Isuzu D-Max problems

Body and structure on rival models

Questions people ask

Does the Isuzu D-Max have more body and structure problems than other cars?

3.6 to 4.0 times the body and structure fail rate of all class 4 vehicles the same age at 8 years (all test years), from 17,530 MOT tests. The interval is clear of 1.2 in the same direction at 7 of the 11 ages seen (ages up to 18 with at least 100 MOT tests with a fail).

How common are Isuzu D-Max body and structure problems?

6.6 in 100 MOT tests at 8 years failed on body and structure, against 1.8 for all class 4 vehicles the same age (all test years; 17,530 MOT tests).

What is the most common Isuzu D-Max body and structure fail?

4.8 in 100 MOT tests at 8 years: Exhaust system: has a major leak of exhaust gases (834 MOT tests with it).

At what age do Isuzu D-Max body and structure fails start?

3 years: from then on the rate stays clear of 1.2 times all class 4 vehicles the same age at every age seen, 134,777 MOT tests.

Sources

  1. Driver and Vehicle Standards Agency, Anonymised MOT tests and results, 2022 to 2025. DVSA MOT data, Open Government Licence v3.0, 134,777 MOT tests. Accessed 7 Oct 2026.

Parts: against all class 4 vehicles at the same age, all 2022–2025 test years pooled, not adjusted for mileage. Breakdowns and non-MOT faults are not in this data. How we compare