Moto Guzzi 1000S: MOT pass rate by registration year

Which 1000S years pass first time, and which fall short of the model's 86.9% average, from 764 DVSA tests.

1991

highest-passing year · 87.9%

1994

lowest-passing year · 86.0%

1.9pp

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: 1991 (87.9% of 116 tests). Lowest: 1994 (86.0% of 50).

Registered	Tests	First-time pass	vs model (86.9%)
1990	262	86.6%	-0.3 pp
1991	116	87.9%	+1.0 pp
1992	135	87.4%	+0.5 pp
1993	69	87.0%	+0.1 pp
1994	50	86.0%	-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 · 2006–2018

Questions

Which 1000S years have the lowest MOT pass rate?: none: no registration year of the Moto Guzzi 1000S falls more than two points under the model's 86.9% overall pass rate.
Which 1000S year has the highest MOT pass rate?: 1991, at 87.9% of 116 first tests (2005–2025).
How much does the 1000S pass rate vary by year?: 1.9 percentage points between the highest (1991, 87.9%) and lowest (1994, 86.0%) 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: Moto Guzzi 1000S reliability, failures and mileage · ranked #1937 of 5428 models· other Moto Guzzi models: California, Breva, V7, Griso, V11, Le Mans