Porsche Boxster Reliability, MOT Pass Rate & Common Faults
Free Porsche Boxster car check
Is the Porsche Boxster reliable? We analysed 726,695 real MOT tests across 46,886 vehicles to find out.
Got a specific Porsche Boxster? Enter the reg for a free check:
The Porsche Boxster is above average for reliability based on real UK MOT data. Common problems include tyre tread depth below requirements of 1.6mm, brake pipe excessively corroded and exhaust emissions lambda reading after 2nd fast idle outside specified limits. Here's everything you need to know before buying a used Porsche Boxster.
Porsche Boxster Number Plates
Number plates registered to a Porsche Boxster. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Porsche Boxster MOT Pass Rate by Year
How likely is a Porsche Boxster to pass its MOT? Here's the pass rate for each registration year, newest first.
Porsche Boxster Problems — What Goes Wrong?
The most common reasons a Porsche Boxster fails its MOT, ranked by how often they occur. Check for these problems before you buy.
Porsche Boxster Common Faults & Problems
These are the most common serious faults found on Porsche Boxster models during MOT testing — flagged as dangerous or major failures that need immediate attention.
Porsche Boxster Mileage — What's Normal?
How many miles does a typical Porsche Boxster owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Porsche Boxster MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Porsche Boxster year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2023 | 113 | 96.5% | 6,970 | 10,957 | 17,853 |
| 2022 | 426 | 95.3% | 8,183 | 13,105 | 18,771 |
| 2021 | 696 | 95.5% | 8,324 | 13,918 | 20,900 |
| 2020 | 1,703 | 93.8% | 10,842 | 16,816 | 25,480 |
| 2019 | 4,341 | 94.7% | 11,195 | 17,370 | 25,536 |
| 2018 | 6,312 | 94.3% | 13,008 | 20,000 | 29,582 |
| 2017 | 7,486 | 94.3% | 14,541 | 22,807 | 33,472 |
| 2016 | 10,002 | 94.1% | 13,950 | 22,629 | 34,200 |
| 2015 | 9,960 | 93.8% | 15,422 | 25,016 | 36,894 |
| 2014 | 12,461 | 93.3% | 18,290 | 28,955 | 42,833 |
| 2013 | 15,079 | 92.5% | 19,619 | 30,524 | 45,068 |
| 2012 | 13,405 | 91.8% | 20,626 | 32,408 | 47,434 |
| 2011 | 10,657 | 91.3% | 22,138 | 35,586 | 51,334 |
| 2010 | 12,361 | 91.5% | 22,920 | 38,000 | 57,596 |
| 2009 | 14,137 | 90.8% | 25,833 | 42,000 | 60,278 |
| 2008 | 20,643 | 88.3% | 27,774 | 43,747 | 63,636 |
| 2007 | 32,655 | 87.6% | 29,656 | 47,123 | 67,532 |
| 2006 | 42,189 | 85.5% | 32,463 | 51,281 | 73,300 |
| 2005 | 79,615 | 84.4% | 33,884 | 53,703 | 75,732 |
| 2004 | 55,958 | 81.0% | 36,094 | 55,920 | 78,204 |
How Long Does a Porsche Boxster Last?
Based on 46,886 Porsche Boxster vehicles on UK roads.
Porsche Boxster Mileage Distribution
Total mileage recorded across all Porsche Boxster MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.
Best Year to Buy a Used Porsche Boxster
Based on MOT pass rates across all registration years with sufficient test data.
96.5% MOT pass rate from 113 tests
74.2% MOT pass rate from 664 tests
The best year to buy a used Porsche Boxster is 2023, which has the highest MOT pass rate at 96.5% across 113 tests. The 1996 model year has the lowest pass rate at 74.2% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Porsche Boxster Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Porsche Boxster THIS CAR | 82.8% | 726,695 | 55,739 mi | 29 yrs |
| Porsche 911 | 85.2% | 977,057 | 55,056 mi | 47 yrs |
| Porsche Cayenne | 84.5% | 388,697 | 65,616 mi | 23 yrs |
| Porsche Macan | 92% | 203,934 | 38,518 mi | 12 yrs |
| Rover Metro | 62.9% | 277,779 | 53,046 mi | 37 yrs |
Compared to the Porsche 911 (85.2% pass rate) and the Porsche Cayenne (84.5% pass rate), the Porsche Boxster trails behind on MOT reliability.
Found a Porsche Boxster you like?
Run a full vehicle history check on the specific car. See finance, stolen, write-off, mileage and MOT data for that exact vehicle.
Check a specific Porsche BoxsterShould you buy a used Porsche Boxster?
The Porsche Boxster has an overall MOT pass rate of 82.8% across 726,695 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.
The most common problems on the Porsche Boxster are tyre tread depth below requirements of 1.6mm (19,504 recorded failures), brake pipe excessively corroded (6,317), and exhaust emissions lambda reading after 2nd fast idle outside specified limits (5,538). These are the faults most likely to cause an MOT failure on this model, so check for them carefully on any test drive or pre-purchase inspection. Many are wear-and-tear items that can be budgeted for, but a car that's already failing on multiple fronts may signal neglected maintenance.
On the safety side, the most frequently flagged dangerous fault is tyre tread depth below requirements of 1.6mm. Dangerous faults cause an immediate MOT failure and mean the vehicle is not roadworthy until repaired. If you're viewing a Porsche Boxster with an expired or recently passed MOT, ask the seller whether any dangerous faults were found and fixed during the last test.
A typical Porsche Boxster owner drives around 2,475 miles per year. If the car you're looking at is significantly above this, expect more wear on suspension, brakes and tyres. If it's well below, the vehicle may have been sitting unused — check for perished rubber, corroded discs and stale fluids.
In terms of longevity, most Porsche Boxster models stay on UK roads for around 29 years — a strong showing that suggests solid build quality and readily available parts. If you're buying one that's already approaching that window, the data suggests it has plenty of life left provided it's been maintained.
Before committing to a purchase, we recommend running a full vehicle history check on the specific car. This will reveal any outstanding finance, stolen markers, write-off history and mileage discrepancies that the seller may not disclose — and that the MOT data alone can't tell you.