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Suzuki Swift vs Suzuki Sz4: reliability comparison

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

Suzuki Swift
76%
MOT pass rate · 189,123 vehicles
Suzuki Sz4
77%
MOT pass rate · 5 vehicles
Verdict: On MOT pass rate the Suzuki Swift (76%) and Suzuki Sz4 (77%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Suzuki Swift Suzuki Sz4
MOT pass rate 76% 77% ✓
MOT failure rate 24% 23% ✓
Faults & advisories per test 1.9 1.7 ✓
Dangerous-fault share 2% 0% ✓
Average mileage 77,428 mi 74,315 mi
Sample size (vehicles) 189,123 5

Most common faults

Suzuki Swift

  1. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  2. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  3. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  4. Offside Front Tyre worn close to the legal limit (4.1.E.1)
  5. Offside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
  6. Nearside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))

Suzuki Sz4

  1. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  2. Front Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))
  3. Offside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
  4. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  5. Suspension component mounting prescribed area is corroded but not considered excessive Front Cross Member (5.3.6 (a) (i))
  6. Offside Rear Registration plate lamp inoperative in the case of multiple lamps or light sources (4.7.1 (b) (i))

Reliability FAQ

On MOT pass rate the Suzuki Swift (76%) and Suzuki Sz4 (77%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Suzuki Swift report Full Suzuki Sz4 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.