Skyteam ST: MOT pass rate by registration year

Which ST years pass first time, and which fall short of the model's 82.7% average, from 901 DVSA tests.

2017

highest-passing year · 87.9%

2014

lowest-passing year · 78.5%

9.4pp

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: 2017 (87.9% of 199 tests). Lowest: 2014 (78.5% of 135). Years more than two points below the model average: 2013, 2014.

Registered	Tests	First-time pass	vs model (82.7%)
2013	59	79.7%	-3.0 pp
2014	135	78.5%	-4.2 pp
2015	152	86.8%	+4.1 pp
2016	219	81.3%	-1.4 pp
2017	199	87.9%	+5.2 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 ST years have the lowest MOT pass rate?: 2013, 2014 registered examples pass first time less often than the Skyteam ST overall (82.7%); the 2014 cohort is lowest at 78.5% from 135 tests.
Which ST year has the highest MOT pass rate?: 2017, at 87.9% of 199 first tests (2005–2025). Years more than two points above the model average: 2015, 2017.
How much does the ST pass rate vary by year?: 9.4 percentage points between the highest (2017, 87.9%) and lowest (2014, 78.5%) 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: Skyteam ST reliability, failures and mileage · ranked #3029 of 5428 models· other Skyteam models: 05, ST 110-8A Gorilla, ST 50-3 SM, 24, 17, 07