Data as of: DVSA MOT results to 2025
SUZUKI AN 400 L0
The pass rate is the MOT first-time pass: a roadworthiness check of the items an MOT covers (brakes, lights, tyres, steering, structure, emissions), not a full mechanical inspection of engine or gearbox internals. It is a reliability signal, not a complete measure of mechanical reliability. What this measures.
“vs expected” adjusts for age, mileage and test class, so a cherished classic and a hard-used commuter are compared fairly. How this works.
Pass rate over time
The AN 400 L0's first-time pass rate has fallen 11.4 points since 2013, 89.2% to 77.8%.
Pass rate by mileage
A low-mileage AN 400 L0 passes first time 91.2% of the time; by 30k that's 73.5%.
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 AN 400 L0
| Component group | Share of defects | Defects | % of defects | vs all bikes |
|---|---|---|---|---|
| brakes |
|
72 | 50.7 | 1.4× |
| lamps and reflectors |
|
18 | 12.7 | 1.1× |
| tyres and wheels |
|
18 | 12.7 | 0.8× |
| tyres |
|
9 | 6.3 | 1.5× |
| lighting and signalling |
|
8 | 5.6 | 0.2× |
| steering and suspension |
|
7 | 4.9 | 0.3× |
| suspension |
|
5 | 3.5 | 0.8× |
| steering |
|
2 | 1.4 | 0.5× |
| structure and attachments |
|
2 | 1.4 | 0.3× |
| audible warning (Horn) |
|
1 | 0.7 | 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.
How rivals compare
On first-time pass rate the AN 400 L0 beats 3 of its 4 closest rivals (KAWASAKI ER5, SUZUKI GS500, SUZUKI AN400).
Rivals share this bike's type and sit within ±30% of its engine capacity, ≥ 5,000 tests. Card colour = better/worse first-time pass rate than the AN 400 L0.
Compare with any bike
More SUZUKI models
Pass rate by registration year
Highest pass rate: 2012 (87.3%). Lowest: 2011 (84.8%). Every An 400 L0 year compared →
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.
SUZUKI AN 400 L0 FAQ
Is the SUZUKI AN 400 L0 reliable?
The SUZUKI AN 400 L0 is about average for its class: 85.7% of its 900 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #2308 of 5428 models.
What does a AN 400 L0 fail its MOT on most?
brakes: 51% of all defects recorded against failed AN 400 L0 tests.
What is the best year of AN 400 L0 to buy used?
By first-time pass rate, 2012-registered examples do best (87.3%) and 2011 worst (84.8%). Condition and history still trump the year.
How many miles will a AN 400 L0 last?
The median AN 400 L0 shows 13,546 miles at test, and examples around 30k miles still pass 73.5% of the time, so mileage alone rarely decides the result.
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