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Saab 9-5 vs Saab 9-5 aero ttid4: reliability comparison

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

Saab 9-5
74%
MOT pass rate · 55,962 vehicles
Saab 9-5 aero ttid4
78%
MOT pass rate · 13 vehicles
Verdict: On MOT pass rate the Saab 9-5 (74%) and Saab 9-5 aero ttid4 (78%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Saab 9-5 Saab 9-5 aero ttid4
MOT pass rate 74% 78% ✓
MOT failure rate 26% 22% ✓
Faults & advisories per test 2.1 0.6 ✓
Dangerous-fault share 1% 0% ✓
Average mileage 136,801 mi 126,709 mi
Sample size (vehicles) 55,962 13

Most common faults

Saab 9-5

  1. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  2. Offside Front Tyre worn close to the legal limit (4.1.E.1)
  3. Oil leak
  4. Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
  5. Offside Rear Tyre worn close to the legal limit (4.1.E.1)
  6. Oil leak, but not excessive (8.4.1 (a) (i))

Saab 9-5 aero ttid4

  1. Offside Rear Shock absorbers has light misting of oil (5.3.2 (b))
  2. Steering lock not functioning (7.3 (a))
  3. Rear fog lamp not working (4.5.1 (a) (ii))
  4. 245/40R19
  5. Nearside Front Tyre worn close to legal limit/worn on edge JUST ABOVE THE TREAD WEAR BARS (5.2.3 (e))
  6. Offside Front Tyre worn close to legal limit/worn on edge JUST ABOVE THE TREAD WEAR BARS (5.2.3 (e))

Reliability FAQ

On MOT pass rate the Saab 9-5 (74%) and Saab 9-5 aero ttid4 (78%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Saab 9-5 report Full Saab 9-5 aero ttid4 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.