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Toyota iQ body and structure problems

DVSA MOT tests 2022–2025 · 15,128 MOT tests · Updated

At 13 years, 1.4 in 100 MOT tests of the Toyota iQ failed on body and structure, against 5.0 for all class 4 vehicles the same age (all test years; 15,128 MOT tests) [1].

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  • Against all class 4 vehicles the same age: fails less often than all class 4 vehicles the same age (0.2–0.3×) (all test years), 213 MOT tests with a fail
  • By age: seen at 8 ages from 9 to 16 years, 67,409 MOT tests
  • MOT tests at 13 years: 15,128 for the Toyota iQ

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

What the MOT tests show

What we know

1.4 fails per 100 MOT tests at 13 years, against 5.0 for all class 4 vehicles tested at 13 (all test years). The Toyota iQ fails less often here.

Why it matters

A body and structure fail stops the car passing until it is fixed.

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.

Toyota iQ body and structure fails by age

Toyota iQ body and structure fails per 100 MOT tests by ageSolid line: the Toyota iQ. Dashed line: all cars the same age. The table below lists every value.059 years: 0.6 per 100 (all cars 2.3), 2,162 MOT tests910 years: 0.7 per 100 (all cars 2.9), 4,483 MOT tests1011 years: 1.1 per 100 (all cars 3.5), 7,051 MOT tests1112 years: 1.3 per 100 (all cars 4.3), 9,967 MOT tests1213 years: 1.4 per 100 (all cars 5.0), 15,128 MOT tests1314 years: 1.8 per 100 (all cars 5.9), 12,611 MOT tests1415 years: 2.0 per 100 (all cars 6.7), 9,943 MOT tests1516 years: 2.4 per 100 (all cars 7.6), 6,064 MOT tests16
Fails per 100 MOT tests by age, all first-use years pooled. Toyota iQ All class 4 vehicles the same age
AgeMOT testsFails per 100All class 4 vehicles the same age
92,1620.62.3
104,4830.72.9
117,0511.13.5
129,9671.34.3
1315,1281.45.0
1412,6111.85.9
159,9432.06.7
166,0642.47.6

All first-use years of the Toyota iQ 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 13 years

Advisories (not fails)

Re-secure exhaust (hanger or clamp) cost

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  • Model risks for this year and fuel
  • What similar cars did at their next MOT
  • Repairs ahead
  • Viewing checklist

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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: mounting defective.

Check one Toyota iQ, not the average

The figures here describe Toyota iQ cars as a group. These free tools answer for one car. Each line says what the tool reads.

Other Toyota iQ problems

Body and structure on rival models

Questions people ask

Does the Toyota iQ have more body and structure problems than other cars?

0.2 to 0.3 times the body and structure fail rate of all class 4 vehicles the same age at 13 years (all test years), from 15,128 MOT tests. The interval is clear of 0.8 in the same direction at 5 of the 8 ages seen (ages up to 18 with at least 100 MOT tests with a fail).

How common are Toyota iQ body and structure problems?

1.4 in 100 MOT tests at 13 years failed on body and structure, against 5.0 for all class 4 vehicles the same age (all test years; 15,128 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, 67,409 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