PIAGGIO MP3 400

399cc Petrol Class 2

#2172 of 5426 overall #27 of 136 PIAGGIOs #97 of 412 scooter bikes

86.1%

first-time pass rate

9.4%

failed outright

17,398

median miles at test

796

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2011–2022

The MP3 400's first-time pass rate has risen 11.7 points since 2011, 76.5% to 88.2%.

Pass rate by mileage

how the MP3 400's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage MP3 400 passes first time 89.9% of the time; by 40k that's 74.4%.

First-time pass rate by odometer reading at test, 10,000-mile bands for this model. Mileage is the strongest reliability signal. See the full curve.

What fails on a MP3 400

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
steering and suspension	41	25.5	1.0×
brakes	31	19.3	0.6×
lighting and signalling	25	15.5	0.5×
tyres and wheels	25	15.5	1.1×
lamps and reflectors	15	9.3	0.9×
tyres	8	5	1.3×
suspension	6	3.7	0.7×
Other	4	2.5	—
steering	3	1.9	0.9×
structure and attachments	3	1.9	0.6×

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects. "vs all bikes" is how often this model's tests record a defect in the group, as a multiple of the all-bike rate.

Pass rate by registration year

how each model-year cohort fares · registration year from first use date

Best year to buy used: 2009 (89.1% pass). Weakest: 2008 (85.0%).

First-time pass rate by the year each bike was first registered (cohorts with ≥ 50 tests). Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.

PIAGGIO MP3 400 FAQ

answers computed from the data above · terms in the glossary

Is the PIAGGIO MP3 400 reliable?

The PIAGGIO MP3 400 is about average for its class: 86.1% of its 796 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #2172 of 5426 models.

What does a MP3 400 fail its MOT on most?

steering and suspension — 25% of all defects recorded against failed MP3 400 tests.

What is the best year of MP3 400 to buy used?

By first-time pass rate, 2009-registered examples do best (89.1%) and 2008 worst (85.0%). Condition and history still trump the year.

How many miles will a MP3 400 last?

The median MP3 400 shows 17,398 miles at test, and examples around 40k miles still pass 74.4% of the time — mileage alone rarely kills one.