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Suzuki Swift exhaust, emissions and leaks problems

DVSA MOT tests 2022–2025 · 41,976 MOT tests · Updated

At 9 years, 0.6 in 100 MOT tests of the Suzuki Swift failed on exhaust, emissions and leaks, against 2.4 for all class 4 vehicles the same age (all test years; 41,976 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), 268 MOT tests with a fail
  • By age: seen at 18 ages from 3 to 20 years, 532,946 MOT tests
  • MOT tests at 9 years: 41,976 for the Suzuki Swift

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 9 years, against 2.4 for all class 4 vehicles tested at 9 (all test years). The Suzuki Swift fails less often here.

Why it matters

An exhaust, emissions and leaks fail stops the car passing until it is fixed.

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.

Suzuki Swift exhaust, emissions and leaks fails by age

Suzuki Swift exhaust, emissions and leaks fails per 100 MOT tests by ageSolid line: the Suzuki Swift. Dashed line: all cars the same age. The table below lists every value.053 years: 0.1 per 100 (all cars 0.5), 31,936 MOT tests34 years: 0.1 per 100 (all cars 0.7), 37,110 MOT tests5 years: 0.1 per 100 (all cars 1.0), 37,485 MOT tests56 years: 0.2 per 100 (all cars 1.3), 39,916 MOT tests7 years: 0.3 per 100 (all cars 1.7), 41,358 MOT tests78 years: 0.5 per 100 (all cars 2.1), 41,361 MOT tests9 years: 0.6 per 100 (all cars 2.4), 41,976 MOT tests910 years: 1.1 per 100 (all cars 2.8), 40,662 MOT tests11 years: 1.5 per 100 (all cars 3.2), 34,750 MOT tests1112 years: 2.1 per 100 (all cars 3.7), 31,099 MOT tests13 years: 2.8 per 100 (all cars 4.3), 29,737 MOT tests1314 years: 3.8 per 100 (all cars 5.1), 28,863 MOT tests15 years: 5.1 per 100 (all cars 5.7), 30,250 MOT tests1516 years: 5.9 per 100 (all cars 6.2), 27,641 MOT tests17 years: 7.0 per 100 (all cars 6.5), 20,553 MOT tests1718 years: 7.8 per 100 (all cars 6.8), 11,865 MOT tests19 years: 6.8 per 100 (all cars 7.0), 4,857 MOT tests1920 years: 8.1 per 100 (all cars 7.0), 1,527 MOT tests
Fails per 100 MOT tests by age, all first-use years pooled. Suzuki Swift All class 4 vehicles the same age Shaded: over 18 years, survivors only.
AgeMOT testsFails per 100All class 4 vehicles the same age
331,9360.10.5
437,1100.10.7
537,4850.11.0
639,9160.21.3
741,3580.31.7
841,3610.52.1
941,9760.62.4
1040,6621.12.8
1134,7501.53.2
1231,0992.13.7
1329,7372.84.3
1428,8633.85.1
1530,2505.15.7
1627,6415.96.2
1720,5537.06.5
1811,8657.86.8
19*4,8576.87.0
20*1,5278.17.0

All first-use years of the Suzuki Swift 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 9 years

Advisories (not fails)

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By engine and fuel

  • 1.2 petrol: 0.5 per 100 at 9 years, fails less often than petrol class 4 vehicles the same age (0.2× (0.19–0.25×)) (all test years; 36,556 MOT tests)
  • 1.5 petrol: 5.4 per 100 at 16 years, about average for petrol class 4 vehicles the same age (all test years; 13,762 MOT tests)
  • 1.3 petrol: 4.4 per 100 at 15 years, fails less often than petrol class 4 vehicles the same age (0.7–0.8×) (all test years; 12,101 MOT tests)

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 Suzuki Swift, not the average

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

Other Suzuki Swift problems

Exhaust, emissions and leaks on rival models

Questions people ask

Does the Suzuki Swift have more exhaust, emissions and leaks problems than other cars?

0.2 to 0.3 times the exhaust, emissions and leaks fail rate of all class 4 vehicles the same age at 9 years (all test years), from 41,976 MOT tests. The interval is clear of 0.8 in the same direction at 8 of the 18 ages seen (ages up to 18 with at least 100 MOT tests with a fail).

How common are Suzuki Swift exhaust, emissions and leaks problems?

0.6 in 100 MOT tests at 9 years failed on exhaust, emissions and leaks, against 2.4 for all class 4 vehicles the same age (all test years; 41,976 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, 532,946 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