What year BMW 635 Csi Auto is most reliable?

Based on MOT first-test pass rates, the 1988 BMW 635 Csi Auto has the highest pass rate at 100.0%, out of 100 vehicles tested.

What are the most common BMW 635 Csi Auto MOT failures?

The most common BMW 635 Csi 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 635 Csi Auto — Reliability by Year

2,427 vehicles · MOT data 1980–1989 · first-test pass rates

This page shows MOT first-test pass rates for each year the BMW 635 Csi 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

1988

100.0% pass rate · 100 vehicles

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Lowest pass rate year

1989

90.0% pass rate · 138 vehicles

Year	Pass rate	Avg mileage	Vehicles
1989	90.0%	120,530 mi	138
1988	100.0%	120,654 mi	100
1987	—	—	172
1986	95.8%	124,262 mi	229
1985	100.0%	166,964 mi	234
1984	100.0%	59,767 mi	310
1983	—	—	352
1982	—	—	300
1981	—	—	252
1980	—	—	340

Which year BMW 635 Csi Auto is most reliable?

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

Tests range from an average of 59,767 miles (newest year) to 166,964 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 BMW 635 Csi Auto.

See the buying guide →

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