Suzuki En: MOT pass rate by registration year

Which En years pass first time, and which fall short of the model's 66.1% average, from 557 DVSA tests.

2015

highest-passing year · 72.7%

2007

lowest-passing year · 57.3%

15.4pp

spread across 5 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: 2015 (72.7% of 99 tests). Lowest: 2007 (57.3% of 75). Years more than two points below the model average: 2005, 2007.

Registered	Tests	First-time pass	vs model (66.1%)
2005	94	59.6%	-6.5 pp
2006	64	68.8%	+2.7 pp
2007	75	57.3%	-8.8 pp
2014	106	64.2%	-1.9 pp
2015	99	72.7%	+6.6 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 · 2017–2025

Questions

Which En years have the lowest MOT pass rate?: 2005, 2007 registered examples pass first time less often than the Suzuki En overall (66.1%); the 2007 cohort is lowest at 57.3% from 75 tests.
Which En year has the highest MOT pass rate?: 2015, at 72.7% of 99 first tests (2005–2025). Years more than two points above the model average: 2006, 2015.
How much does the En pass rate vary by year?: 15.4 percentage points between the highest (2015, 72.7%) and lowest (2007, 57.3%) 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 En reliability, failures and mileage · ranked #4960 of 5428 models· other Suzuki models: GSXR600, GSF600, GSXR750, GSF1200, GSXR1000, SV650S