Skip to content

Porsche 911 vs Porsche 911 targa 4s tiptronic s: reliability comparison

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

Porsche 911
85%
MOT pass rate · 74,656 vehicles
Porsche 911 targa 4s tiptronic s
92%
MOT pass rate · 12 vehicles
Verdict: On MOT pass rate the Porsche 911 (85%) and Porsche 911 targa 4s tiptronic s (92%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Porsche 911 Porsche 911 targa 4s tiptronic s
MOT pass rate 85% 92% ✓
MOT failure rate 15% 8% ✓
Faults & advisories per test 1.1 0.4 ✓
Dangerous-fault share 1% ✓ 6%
Average mileage 70,982 mi 41,247 mi
Sample size (vehicles) 74,656 12

Most common faults

Porsche 911

  1. Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
  2. Offside Rear Tyre worn close to the legal limit (4.1.E.1)
  3. Under-trays fitted obscuring some underside components
  4. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  5. Offside Front Tyre worn close to the legal limit (4.1.E.1)
  6. Oil leak, but not excessive (8.4.1 (a) (i))

Porsche 911 targa 4s tiptronic s

  1. Offside Rear Shock absorbers has light misting of oil (5.3.2 (b))
  2. Under-trays fitted obscuring some underside components
  3. o/s/r tyre inner edge slightly worn
  4. Nearside Headlamp aim too high (1.8)
  5. Offside Headlamp aim too high (1.8)
  6. Offside Rear Seat belt damaged but not affecting the operation of the belt (5.2.2a)

Reliability FAQ

On MOT pass rate the Porsche 911 (85%) and Porsche 911 targa 4s tiptronic s (92%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Porsche 911 report Full Porsche 911 targa 4s tiptronic s 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.