Urban DZ 125: MOT pass rate by registration year

Which DZ 125 years pass first time, and which fall short of the model's 51.6% average, from 768 DVSA tests.

2007

highest-passing year · 57.6%

2005

lowest-passing year · 50.6%

7.0pp

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: 2007 (57.6% of 139 tests). Lowest: 2005 (50.6% of 156).

Registered	Tests	First-time pass	vs model (51.6%)
2004	50	54.0%	+2.4 pp
2005	156	50.6%	-1.0 pp
2006	245	53.9%	+2.3 pp
2007	139	57.6%	+6.0 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 · 2008–2017

Questions

Which DZ 125 years have the lowest MOT pass rate?: none: no registration year of the Urban DZ 125 falls more than two points under the model's 51.6% overall pass rate.
Which DZ 125 year has the highest MOT pass rate?: 2007, at 57.6% of 139 first tests (2005–2025). Years more than two points above the model average: 2004, 2006, 2007.
How much does the DZ 125 pass rate vary by year?: 7.0 percentage points between the highest (2007, 57.6%) and lowest (2005, 50.6%) 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: Urban DZ 125 reliability, failures and mileage · ranked #5385 of 5428 models