What year Proton Gen 2 is most reliable?

Based on MOT first-test pass rates, the 2005 Proton Gen 2 has the highest pass rate at 73.1%, out of 1,008 vehicles tested.

What are the most common Proton Gen 2 MOT failures?

The most common Proton Gen 2 MOT failures vary by year. Check the individual year pages for detailed defect breakdowns — links in the table above.

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Proton Gen 2 — Reliability by Year

4,689 vehicles · MOT data 2004–2011 · first-test pass rates

This page shows MOT first-test pass rates for each year the Proton Gen 2 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

2005

73.1% pass rate · 1,008 vehicles

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Lowest pass rate year

2009

71.2% pass rate · 364 vehicles

Year	Pass rate	Avg mileage	Vehicles
2011	72.9%	48,508 mi	161
2010	71.8%	51,466 mi	283
2009	71.2%	46,827 mi	364
2008	71.6%	48,168 mi	700
2007	71.6%	48,988 mi	934
2006	72.2%	47,950 mi	1,035
2005	73.1%	47,217 mi	1,008
2004	72.6%	47,977 mi	204

Which year Proton Gen 2 is most reliable?

MOT pass rate by year of manufacture — averaged across each vehicle's lifetime of tests.

Tests range from an average of 46,827 miles (newest year) to 51,466 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 Gen 2.

See the buying guide →

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