MZ ETZ301: MOT pass rate by registration year

Which ETZ301 years pass first time, and which fall short of the model's 84.1% average, from 675 DVSA tests.

1993

highest-passing year · 86.6%

1994

lowest-passing year · 82.5%

4.1pp

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: 1993 (86.6% of 179 tests). Lowest: 1994 (82.5% of 189).

Registered	Tests	First-time pass	vs model (84.1%)
1992	148	84.5%	+0.4 pp
1993	179	86.6%	+2.5 pp
1994	189	82.5%	-1.6 pp
1995	60	85.0%	+0.9 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 · 2006–2015

Questions

Which ETZ301 years have the lowest MOT pass rate?: none: no registration year of the MZ ETZ301 falls more than two points under the model's 84.1% overall pass rate.
Which ETZ301 year has the highest MOT pass rate?: 1993, at 86.6% of 179 first tests (2005–2025).
How much does the ETZ301 pass rate vary by year?: 4.1 percentage points between the highest (1993, 86.6%) and lowest (1994, 82.5%) 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: MZ ETZ301 reliability, failures and mileage · ranked #2721 of 5428 models· other MZ models: Baghira, ETZ250, Skorpion, ETZ251, TS250, ETZ125