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Suzuki S40 vs Suzuki Unknown: reliability comparison

MOT pass rates, common faults and mileage compared from real UK MOT data.

Suzuki S40
93%
MOT pass rate · 6 vehicles
Suzuki Unknown
84%
MOT pass rate · 512,746 vehicles
Verdict: On MOT pass rate the Suzuki S40 (93%) and Suzuki Unknown (84%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Suzuki S40 Suzuki Unknown
MOT pass rate 93% ✓ 84%
MOT failure rate 7% ✓ 16%
Faults & advisories per test 0.2 ✓ 0.8
Dangerous-fault share 0% ✓ 4%
Average mileage 6,373 mi 20,498 mi
Sample size (vehicles) 6 512,746

Most common faults

Suzuki S40

  1. Front Brake pad(s) close to minimum limit (1.1.13 (a))
  2. Rear Tyre worn close to the legal limit (5.2.3 (e))
  3. Headlamp aim too low (1.6)
  4. Front Brake pad(s) close to minimum limit (3.2.A1f(i))
  5. Exhaust noisy (8.1.1 (a))
  6. tell tale inop flashers seen from riding position

Suzuki Unknown

  1. Exhaust noisy (8.1.1 (a))
  2. Rear Tyre worn close to the legal limit (5.2.3 (e))
  3. Chain guard missing
  4. Rear reflector missing (4.8.2 (a) (ii))
  5. Front Brake binding but not excessively (1.2.1 (f))
  6. Nearside Front Shock absorber has a light misting of oil (5.3.2 (b))

Reliability FAQ

On MOT pass rate the Suzuki S40 (93%) and Suzuki Unknown (84%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Suzuki S40 report Full Suzuki Unknown report Most reliable cars

Pass rates are computed over completed (pass/fail) MOT tests. Reliability also depends on age, mileage and upkeep — see each model's page for the full picture.