Suzuki An 400 L0: MOT pass rate by registration year

Which An 400 L0 years pass first time, and which fall short of the model's 85.7% average, from 900 DVSA tests.

2012

highest-passing year · 87.3%

2011

lowest-passing year · 84.8%

2.5pp

spread across 3 years

Pass rate by registration year

first-time pass rate · cohorts with 50 or more tests · registration year from first use date

Highest pass rate: 2012 (87.3% of 55 tests). Lowest: 2011 (84.8% of 486).

Registered	Tests	First-time pass	vs model (85.7%)
2010	352	86.4%	+0.7 pp
2011	486	84.8%	-0.9 pp
2012	55	87.3%	+1.6 pp

Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years. A first-time MOT pass is a roadworthiness check, not a full mechanical inspection.

Pass rate over time

first-time pass rate by test year · 2013–2025

Questions

Which An 400 L0 years have the lowest MOT pass rate?: none: no registration year of the Suzuki An 400 L0 falls more than two points under the model's 85.7% overall pass rate.
Which An 400 L0 year has the highest MOT pass rate?: 2012, at 87.3% of 55 first tests (2005–2025).
How much does the An 400 L0 pass rate vary by year?: 2.5 percentage points between the highest (2012, 87.3%) and lowest (2011, 84.8%) cohorts with at least 50 tests. Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.

Full report: Suzuki An 400 L0 reliability, failures and mileage · ranked #2308 of 5428 models· other Suzuki models: GSXR600, GSF600, GSXR750, GSF1200, GSXR1000, SV650S