Skip to content

Triumph 595 vs Triumph Unknown: reliability comparison

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

Triumph 595
80%
MOT pass rate · 2 vehicles
Triumph Unknown
89%
MOT pass rate · 65,927 vehicles
Verdict: On MOT pass rate the Triumph 595 (80%) and Triumph Unknown (89%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Triumph 595 Triumph Unknown
MOT pass rate 80% 89% ✓
MOT failure rate 20% 11% ✓
Faults & advisories per test 1.3 0.6 ✓
Dangerous-fault share 0% ✓ 2%
Average mileage 54,947 mi 16,601 mi
Sample size (vehicles) 2 65,927

Most common faults

Triumph 595

  1. Rear wheel bearings have slight free play (2.4.A.2c)
  2. Headlamp masks/converters fitted
  3. Front brake lines close to tyre
  4. Rear indicators spacing close!
  5. Steering headbearing slightly stiff or notchy (2.2.2 (f) (i))
  6. Headlamp aim corrected with tape

Triumph Unknown

  1. Exhaust noisy (8.1.1 (a))
  2. Exhaust noisy (7.1.2)
  3. Front Roller brake test indicates slight fluctuation of brake effort (3.3.A1d)
  4. COVID-19 6 MONTH EXTENSION
  5. Rear Tyre worn close to the legal limit (5.2.3 (e))
  6. Steering headbearing has slight free play (2.2.2)

Reliability FAQ

On MOT pass rate the Triumph 595 (80%) and Triumph Unknown (89%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Triumph 595 report Full Triumph 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.