Piaggio Diesis Reliability, MOT Pass Rate & Common Faults
Free Piaggio Diesis car check
Is the Piaggio Diesis reliable? We analysed 1,121 real MOT tests across 291 vehicles to find out.
Got a specific Piaggio Diesis? Enter the reg for a free check:
The Piaggio Diesis is above average for reliability based on real UK MOT data. Common problems include brake lever has inadequate reserve travel, brake pad(s) less than 1.5 mm thick and shock absorber seal failed and leaking oil. Here's everything you need to know before buying a used Piaggio Diesis.
Piaggio Diesis Number Plates
Number plates registered to a Piaggio Diesis. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Piaggio Diesis MOT Pass Rate by Year
How likely is a Piaggio Diesis to pass its MOT? Here's the pass rate for each registration year, newest first.
Piaggio Diesis Problems — What Goes Wrong?
The most common reasons a Piaggio Diesis fails its MOT, ranked by how often they occur. Check for these problems before you buy.
Piaggio Diesis Mileage — What's Normal?
How many miles does a typical Piaggio Diesis owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Piaggio Diesis MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Piaggio Diesis year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2003 | 351 | 74.6% | 5,679 | 9,718 | 16,544 |
| 2002 | 706 | 79.2% | 6,102 | 10,616 | 16,012 |
How Long Does a Piaggio Diesis Last?
Based on 291 Piaggio Diesis vehicles on UK roads.
Piaggio Diesis Mileage Distribution
Total mileage recorded across all Piaggio Diesis 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 Piaggio Diesis
Based on MOT pass rates across all registration years with sufficient test data.
79.2% MOT pass rate from 706 tests
74.6% MOT pass rate from 351 tests
The best year to buy a used Piaggio Diesis is 2002, which has the highest MOT pass rate at 79.2% across 706 tests. The 2003 model year has the lowest pass rate at 74.6% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Piaggio Diesis Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Piaggio Diesis THIS CAR | 78.3% | 1,121 | 10,095 mi | 24 yrs |
| Piaggio Vespa | 83.8% | 355,016 | 10,772 mi | 30 yrs |
| Piaggio Zip | 77% | 101,622 | 9,391 mi | 29 yrs |
| Piaggio Nrg | 72.9% | 52,129 | 10,153 mi | 27 yrs |
| Citroen Berlingo 950 En-prise Pro Bhdi | 77.1% | 1,723 | 52,873 mi | — yrs |
Compared to the Piaggio Vespa (83.8% pass rate) and the Piaggio Zip (77.0% pass rate), the Piaggio Diesis sits in the middle of the pack on MOT reliability.
Found a Piaggio Diesis 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 Piaggio DiesisShould you buy a used Piaggio Diesis?
The Piaggio Diesis has an overall MOT pass rate of 78.3% across 1,121 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 Piaggio Diesis are brake lever has inadequate reserve travel (29 recorded failures), brake pad(s) less than 1.5 mm thick (27), and shock absorber seal failed and leaking oil (25). 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.
A typical Piaggio Diesis owner drives around 865 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 Piaggio Diesis models stay on UK roads for around 24 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.