What year Proton SE Auto is most reliable?

Based on MOT first-test pass rates, the 1991 Proton SE Auto has the highest pass rate at 74.6%, out of 382 vehicles tested.

What are the most common Proton SE Auto MOT failures?

The most common Proton SE Auto MOT failures vary by year. Check the individual year pages for detailed defect breakdowns — links in the table above.

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Proton SE Auto — Reliability by Year

1,926 vehicles · MOT data 1990–1993 · first-test pass rates

This page shows MOT first-test pass rates for each year the Proton SE Auto was manufactured — click any year to explore that cohort in detail. Trying to decide which year to buy? See the full buying guide →

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Best pass rate year

1991

74.6% pass rate · 382 vehicles

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Lowest pass rate year

1990

69.1% pass rate · 278 vehicles

Year	Pass rate	Avg mileage	Vehicles
1993	72.2%	76,160 mi	671
1992	71.9%	70,677 mi	595
1991	74.6%	63,070 mi	382
1990	69.1%	61,060 mi	278

Which year Proton SE Auto is most reliable?

MOT pass rate by year of manufacture — averaged across each vehicle's lifetime of tests. Green = noticeably above average for this model; red = noticeably below average.

Tests range from an average of 61,060 miles (newest year) to 76,160 miles (oldest year). Older years naturally accumulate more tests at higher mileages — see the mileage-normalised breakdown →

Trying to decide which year to buy?

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 SE Auto.

See the buying guide →

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