What year BMW 525i Auto is most reliable?

Based on MOT first-test pass rates, the 1987 BMW 525i Auto has the highest pass rate at 85.7%, out of 212 vehicles tested.

What are the most common BMW 525i Auto MOT failures?

The most common BMW 525i Auto MOT failures vary by year. Check the individual year pages for detailed defect breakdowns — links in the table above.

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BMW 525i Auto — Reliability by Year

2,964 vehicles · MOT data 1981–1987 · first-test pass rates

This page shows MOT first-test pass rates for each year the BMW 525i 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

1987

85.7% pass rate · 212 vehicles

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Lowest pass rate year

1983

50.0% pass rate · 812 vehicles

Year	Pass rate	Avg mileage	Vehicles
1987	85.7%	72,123 mi	212
1986	—	—	284
1985	—	—	259
1984	—	—	396
1983	50.0%	128,772 mi	812
1982	—	—	827
1981	—	—	174

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