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Porsche 9114 vs Porsche Boxster: reliability comparison

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

Porsche 9114
89%
MOT pass rate · 1 vehicles
Porsche Boxster
83%
MOT pass rate · 46,488 vehicles
Verdict: On MOT pass rate the Porsche 9114 (89%) and Porsche Boxster (83%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Porsche 9114 Porsche Boxster
MOT pass rate 89% ✓ 83%
MOT failure rate 11% ✓ 17%
Faults & advisories per test 1.1 ✓ 1.4
Dangerous-fault share 0% ✓ 1%
Average mileage 99,500 mi 74,547 mi
Sample size (vehicles) 1 46,488

Most common faults

Porsche 9114

  1. undertrays fitted not allowing full inspection
  2. Oil leak
  3. unable to see and inspect brake master cylinder and resevoir
  4. undertrays fitted making full inspection impossible
  5. Nearside Front Shock absorber has a slightly worn linkage (2.7.4)
  6. Nearside Front brake disc slightly pitted (3.5.1h)

Porsche Boxster

  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. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Reliability FAQ

On MOT pass rate the Porsche 9114 (89%) and Porsche Boxster (83%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Porsche 9114 report Full Porsche Boxster 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.