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Toyota Aygo exhaust, emissions and leaks problems

DVSA MOT tests 2022–2025 · 89,180 MOT tests · Updated

At 7 years, 0.6 in 100 MOT tests of the Toyota Aygo failed on exhaust, emissions and leaks, against 1.7 for all class 4 vehicles the same age (all test years; 89,180 MOT tests) [1].

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  • Against all class 4 vehicles the same age: about average for all class 4 vehicles the same age (all test years), 500 MOT tests with a fail
  • When it starts: clear of 1.2 times from 17 years and at every older age seen
  • Most common fail: Malfunction indicator lamp: inoperative or indicates a malfunction, 0.4 per 100 MOT tests

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

What the MOT tests show

What we know

0.6 fails per 100 MOT tests at 7 years, against 1.7 for all class 4 vehicles tested at 7 (all test years). That is about average.

Why it matters

An exhaust, emissions and leaks fail stops the car passing until it is fixed; the most common one is rated major by DVSA.

What to check

Start the car from cold and look for smoke at the exhaust, listen for blowing joints, and look under the engine and gearbox for fresh oil or fluid drips.

Toyota Aygo exhaust, emissions and leaks fails by age

Toyota Aygo exhaust, emissions and leaks fails per 100 MOT tests by ageSolid line: the Toyota Aygo. Dashed line: all cars the same age. The table below lists every value.05103 years: 0.1 per 100 (all cars 0.5), 58,578 MOT tests34 years: 0.1 per 100 (all cars 0.7), 78,277 MOT tests5 years: 0.2 per 100 (all cars 1.0), 82,673 MOT tests56 years: 0.3 per 100 (all cars 1.3), 88,169 MOT tests7 years: 0.6 per 100 (all cars 1.7), 89,180 MOT tests78 years: 0.9 per 100 (all cars 2.1), 86,462 MOT tests9 years: 1.2 per 100 (all cars 2.4), 80,361 MOT tests910 years: 1.9 per 100 (all cars 2.8), 73,053 MOT tests11 years: 2.7 per 100 (all cars 3.2), 62,799 MOT tests1112 years: 3.5 per 100 (all cars 3.7), 55,475 MOT tests13 years: 4.0 per 100 (all cars 4.3), 53,131 MOT tests1314 years: 5.0 per 100 (all cars 5.1), 50,357 MOT tests15 years: 6.0 per 100 (all cars 5.7), 46,938 MOT tests1516 years: 7.2 per 100 (all cars 6.2), 43,155 MOT tests17 years: 8.5 per 100 (all cars 6.5), 30,285 MOT tests1718 years: 9.4 per 100 (all cars 6.8), 17,860 MOT tests19 years: 10.0 per 100 (all cars 7.0), 8,173 MOT tests1920 years: 11.4 per 100 (all cars 7.0), 1,225 MOT tests
Fails per 100 MOT tests by age, all first-use years pooled. Toyota Aygo All class 4 vehicles the same age Shaded: over 18 years, survivors only.
AgeMOT testsFails per 100All class 4 vehicles the same age
358,5780.10.5
478,2770.10.7
582,6730.21.0
688,1690.31.3
789,1800.61.7
886,4620.92.1
980,3611.22.4
1073,0531.92.8
1162,7992.73.2
1255,4753.53.7
1353,1314.04.3
1450,3575.05.1
1546,9386.05.7
1643,1557.26.2
1730,2858.56.5
1817,8609.46.8
19*8,17310.07.0
20*1,22511.47.0

All first-use years of the Toyota Aygo pooled at each age, against all class 4 vehicles at that age over all 2022–2025 test years. * Only survivors are still tested at this age.

What fails in the exhaust, emissions and leaks at 7 years

Fails

Advisories (not fails)

Diagnose engine warning light cost

Repair figures are estimates, not quotes: how we estimate repair costs.

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

See a sample report

How to check on a test drive

Start the car from cold and look for smoke at the exhaust, listen for blowing joints, and look under the engine and gearbox for fresh oil or fluid drips.

The most common advisory here in MOT records: Engine oil leaks: leak, but not excessive.

Check one Toyota Aygo, not the average

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

Other Toyota Aygo problems

Exhaust, emissions and leaks on rival models

Questions people ask

Does the Toyota Aygo have more exhaust, emissions and leaks problems than other cars?

0.6 in 100 MOT tests at 7 years, against 1.7 for all class 4 vehicles the same age: about average by our test (all test years; 89,180 MOT tests).

How common are Toyota Aygo exhaust, emissions and leaks problems?

0.6 in 100 MOT tests at 7 years failed on exhaust, emissions and leaks, against 1.7 for all class 4 vehicles the same age (all test years; 89,180 MOT tests).

What is the most common Toyota Aygo exhaust, emissions and leaks fail?

0.4 in 100 MOT tests at 7 years: Malfunction indicator lamp: inoperative or indicates a malfunction (368 MOT tests with it).

At what age do Toyota Aygo exhaust, emissions and leaks fails start?

17 years: from then on the rate stays clear of 1.2 times all class 4 vehicles the same age at every age seen, 57,543 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, 1,006,151 MOT tests. Accessed 7 Oct 2026.
  2. Office for National Statistics, Consumer price inflation, local price quotes (car repair items). ONS price quotes, series 610236. 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