82.6%
Porsche Boxster pass rate
Used Porsche Boxster buying guide
In 2025, Porsche Boxster cars passed 82.6% of 32,332 initial MOT tests, 10.3 points above the 72.3% UK average. Here is where it fails and what to check before you buy.
Looking at a specific Boxster? Check its finance, write-off, stolen, mileage and keeper history. £15, no account needed.
Porsche Boxster MOT record in brief
Initial MOT tests in 2025, retests excluded.
72.3%
UK average, all cars
+10.3
percentage points above average
Ranked on pass rate the Boxster sits 161st of 575 models in the data. Porsche as a brand averaged 87.6%, so this model runs 4.9 points behind its own brand. Porsche Boxster cars aged 3 to 5 years passed 94.2% of MOT tests in 2025; for examples aged 11 years and over that fell to 79.8%.
A pass rate is not a reliability score. The full Porsche Boxster MOT record has the pass rate by age, every common failure and how the Boxster compares with similar cars.
Boxster fuel types
Petrol was the most common fuel among Porsche Boxster cars tested in 2025. Diesel made up just 0% of tests.
Where the Boxster fails its MOT
Where Porsche Boxster cars that failed their 2025 MOT were marked down, as a share of all recorded failure items.
The specific items testers recorded most often were catalyst emissions lambda reading after 2nd fast idle outside specified limits (7.7%), rigid brake pipes excessively corroded (5.9%) and coil spring fractured or broken (4.4%). See every common Boxster MOT failure.
These are DVSA failure records across every Porsche Boxster that failed, not a claim that every Boxster has these problems.
What should you check when buying a used Boxster?
The areas above, most common first, and what an MOT tester looks at in each.
1
Lamps, reflectors and electrical equipment
Walk round with every light on: headlights, brake lights, indicators, fog lights and the number plate lamp. Check no warning lights stay on after starting. 26.3% of Boxster failure items.
2
Brakes
Make sure the pedal feels firm, the car stops in a straight line, the handbrake holds on a slope and no brake warning light is showing. 17.1% of Boxster failure items.
3
Noise, emissions and leaks
Listen for a blowing exhaust, watch for smoke on start-up and look under the car for oil or fluid leaks. 14.6% of Boxster failure items.
4
Suspension
Listen for knocks over bumps, check the car sits level, and look for leaking shock absorbers and split rubber gaiters. 13.7% of Boxster failure items.
5
Tyres
Check tread depth across the full width of every tyre (the legal minimum is 1.6mm), and look for cuts, bulges and uneven wear. 9.9% of Boxster failure items.
None of this replaces the car's own record. Run a free MOT history check on the registration to see every test, advisory and recorded mileage for that car.
What the MOT record doesn't tell you
Knowing Porsche Boxster failures cluster around lamps, reflectors and electrical equipment and brakes tells you what to inspect. It tells you nothing about whether the car is safe to buy. An MOT does not show money still owed on the car, a write-off, a theft record or a clocked odometer.
Check the exact Boxster you are looking at. One £15 report, instant results, backed by a £30,000 data guarantee. More on the Porsche history check.
- Outstanding finance
- Write-off records
- Stolen markers
- Mileage history
- Previous keepers
Other used Porsche models
The most-tested Porsche models in 2025, with how their MOT pass rate compares with the Boxster.
Used Porsche Boxster FAQs
Is the Porsche Boxster reliable?
MOT data does not measure reliability. It records whether a car met the roadworthiness standard on the day of its test. What it does show is an 82.6% first-time pass rate for the Porsche Boxster across 32,332 tests in 2025, above the 72.3% average for all cars.
Do older Porsche Boxster cars fail their MOT more often?
Porsche Boxster cars aged 3 to 5 years passed 94.2% of MOT tests in 2025; for examples aged 11 years and over that fell to 79.8%. On an older example, the car's own MOT history tells you more than the model average.
What should I check before buying a used Porsche Boxster?
On the car itself, start with the areas it most often fails on: lamps, reflectors and electrical equipment, brakes and noise, emissions and leaks. Then check the individual car's history: outstanding finance, insurance write-off records, stolen markers, mileage and previous keepers. None of these appear in the MOT record or on the V5C.
How do I check a Porsche Boxster's history?
Enter the registration of the specific car. A Carpeep car history check reports outstanding finance, write-off category, stolen markers, mileage history, previous keepers, MOT and tax status, import and export markers and scrapped status in one £15 report.
MOT figures are aggregated from the DVSA MOT Anonymised data set for 2025 (class 4 initial tests, retests excluded), licensed under the Open Government Licence v3.0. MOT results describe roadworthiness at test, not mechanical reliability.