What year Ford Sierra Sapphire Gl is most reliable?

Based on MOT first-test pass rates, the 1987 Ford Sierra Sapphire Gl has the highest pass rate at 100.0%, out of 8,045 vehicles tested.

What are the most common Ford Sierra Sapphire Gl MOT failures?

The most common Ford Sierra Sapphire Gl MOT failures vary by year. Check the individual year pages for detailed defect breakdowns — links in the table above.

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Ford Sierra Sapphire Gl — Reliability by Year

32,046 vehicles · MOT data 1987–1990 · first-test pass rates

This page shows MOT first-test pass rates for each year the Ford Sierra Sapphire Gl 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

1987

100.0% pass rate · 8,045 vehicles

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Lowest pass rate year

1988

33.3% pass rate · 12,369 vehicles

Year	Pass rate	Avg mileage	Vehicles
1990	66.7%	102,932 mi	1,402
1989	—	—	10,230
1988	33.3%	62,343 mi	12,369
1987	100.0%	58,109 mi	8,045

Which year Ford Sierra Sapphire Gl 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 58,109 miles (newest year) to 102,932 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 Ford Sierra Sapphire Gl.

See the buying guide →

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