SYM JD: MOT pass rate by registration year

Which JD years pass first time, and which fall short of the model's 71.1% average, from 522 DVSA tests.

2017

highest-passing year · 73.1%

2014

lowest-passing year · 69.6%

3.5pp

spread across 4 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 (73.1% of 108 tests). Lowest: 2014 (69.6% of 69).

Registered	Tests	First-time pass	vs model (71.1%)
2014	69	69.6%	-1.5 pp
2016	155	70.3%	-0.8 pp
2017	108	73.1%	+2.0 pp
2018	99	71.7%	+0.6 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 JD years have the lowest MOT pass rate?: none: no registration year of the SYM JD falls more than two points under the model's 71.1% overall pass rate.
Which JD year has the highest MOT pass rate?: 2017, at 73.1% of 108 first tests (2005–2025).
How much does the JD pass rate vary by year?: 3.5 percentage points between the highest (2017, 73.1%) and lowest (2014, 69.6%) 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: SYM JD reliability, failures and mileage · ranked #4652 of 5428 models· other SYM models: Jet, DD50, City Hopper, Jet 50 - Euro X, Fiddle, Shark