Performance by cohort
2 year bands · 4,547 tests
Pass rate climbs 1.9 points across the cohorts — newer Tiguan Life Tsi S A examples clear the test more reliably than the early cars.
Pass
89.4%
Fail
9.6%
PRS
0.8%
Avg mileage at test
30,704 mi
Pass
91.3%
Fail
7.3%
PRS
1.2%
Avg mileage at test
27,166 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.