What year Proton Compact Duo is most reliable?

Based on MOT first-test pass rates, the 1999 Proton Compact Duo has the highest pass rate at 68.1%, out of 101 vehicles tested.

What are the most common Proton Compact Duo MOT failures?

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

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Proton Compact Duo — Reliability by Year

264 vehicles · MOT data 1998–1999 · first-test pass rates

This page shows MOT first-test pass rates for each year the Proton Compact Duo 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

1999

68.1% pass rate · 101 vehicles

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Lowest pass rate year

1998

65.3% pass rate · 163 vehicles

Year	Pass rate	Avg mileage	Vehicles
1999	68.1%	59,305 mi	101
1998	65.3%	73,313 mi	163

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