What year Porsche 928 is most reliable?

Based on MOT first-test pass rates, the 1980 Porsche 928 has the highest pass rate at 74.1%, out of 172 vehicles tested.

What are the most common Porsche 928 MOT failures?

The most common Porsche 928 MOT failures vary by year. Check the individual year pages for detailed defect breakdowns — links in the table above.

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Porsche 928 — Reliability by Year

172 vehicles · MOT data 1980–1980 · first-test pass rates

This page shows MOT first-test pass rates for each year the Porsche 928 was manufactured — click any year to explore that cohort in detail. Trying to decide which year to buy? See the full buying guide →

Year	Pass rate	Avg mileage	Vehicles
1980	74.1%	103,106 mi	172

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