Proton 1 5 Sl — Reliability by Year
1,323 vehicles · MOT data 1994–1996 · first-test pass rates
This page shows MOT first-test pass rates for each year the Proton 1 5 Sl was manufactured — click any year to explore that cohort in detail. Trying to decide which year to buy? See the full buying guide →
Which year Proton 1 5 Sl is most reliable?
MOT pass rate by year of manufacture — averaged across each vehicle's lifetime of tests.
Tests range from an average of 67,410 miles (newest year) to 75,623 miles (oldest year). Older years naturally accumulate more tests at higher mileages — see the mileage-normalised breakdown →
We've done the full analysis — which years to look for, which to avoid, and where to find the best value for reliability on a Proton 1 5 Sl.
Check any UK registration — free MOT history and risk insights.