MOT pass rates / Porsche

Porsche MOT pass rates and common failures

Porsche cars passed 86.6% of their MOTs first time in 2024, across 142,110 class-4 initial tests and 7 model groups. That is above the 71.2% UK average, and ranks Porsche 8th of 59 makes in the dataset.

Pass rates track age more strongly than badge: an older Porsche is compared here against older cars of every other make, so read the age table below before drawing conclusions about the brand.

Checking a Porsche?

Make-level pass rates cannot reveal the condition or provenance of one car.

Check its registration free for the actual MOT, tax and mileage record. Before buying, the optional £9.99 full history check adds outstanding-finance, stolen and insurance write-off checks.

What Porsche cars fail on

The items most often behind a first-test failure across Porsche model groups, as a share of Porsche tests. DVSA publishes each model group's six most common categories, so this ranks the biggest published causes rather than every possible one.

  • Condition — 2.5% of Porsche tests. Corrosion, damage or wear on a tested component. Worth seeing in person, as the cost ranges from trivial to structural.
  • Exhaust Emissions — 2% of Porsche tests. The car exceeded its emissions limits. Can be a sensor or a service, but on a diesel it can also mean an expensive filter or catalyst.
  • Headlamp Aim — 1.8% of Porsche tests. Headlights pointing too high or low. Cheap to adjust, and common on every make.
  • Springs — 0.8% of Porsche tests. A broken or sagging coil spring. Replaced in pairs, so it is not the cheapest failure.
  • Tread Depth — 0.7% of Porsche tests. Tyres below the 1.6mm legal limit. Budget for tyres, and treat it as a sign of how the car was maintained.
  • Rigid Brake Pipes — 0.7% of Porsche tests. Corroded brake pipes. Safety-critical and a sign of underbody corrosion.
  • Transmission — 0.5% of Porsche tests. A fault with a driveshaft, gaiter or transmission component. Costs vary widely.
  • Brake Performance — 0.5% of Porsche tests. The brakes underperformed on the rolling road. Expect brake work rather than an adjustment.

Porsche MOT pass rate by age

Age at testTestsInitial pass rate
3–5 years25,29093.3%
6–9 years41,12190.3%
10–14 years24,47587.8%
15–30 years51,14879.8%

Porsche models by MOT pass rate

ModelTestsInitial pass rate
91137,42787.5%
Boxster29,13582.3%
Macan28,52890.8%
Cayenne26,61284.2%
Cayman13,06288.5%
Panamera5,89887.8%
Taycan 4S 93kwh1,44891.6%

Methodology and limitations

MOT outcomes describe testable items at the time of inspection. They are not a measure of overall mechanical reliability.

Scope: Class 4 normal initial MOT tests completed in 2024. Models require at least 1,000 qualifying tests. Duplicate source rows are removed using official DVSA test IDs.

Source: Driver and Vehicle Standards Agency anonymised MOT tests and results, 2024, published 2025-05-23 under the Open Government Licence v3.0.

Check the actual car

Enter the registration for that Porsche's own free MOT, tax and mileage record. Before money changes hands, the £9.99 full history check adds outstanding finance, insurance write-off and stolen checks.