What year BMW 6 Series is most reliable?

Based on MOT first-test pass rates, the 2019 BMW 6 Series has the highest pass rate at 91.8%, out of 1,037 vehicles tested.

What are the most common BMW 6 Series MOT failures?

The most common BMW 6 Series MOT failures vary by year. Check the individual year pages for detailed defect breakdowns — links in the table above.

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BMW 6 Series — Reliability by Year

5,860 vehicles · MOT data 1985–2020 · first-test pass rates

This page shows MOT first-test pass rates for each year the BMW 6 Series 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

2019

91.8% pass rate · 1,037 vehicles

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Lowest pass rate year

1985

75.8% pass rate · 143 vehicles

Year	Pass rate	Avg mileage	Vehicles
2020	91.5%	35,827 mi	228
2019	91.8%	41,334 mi	1,037
2018	91.4%	43,597 mi	1,649
2017	89.9%	45,378 mi	263
2013	84.8%	61,772 mi	901
2012	85.0%	65,203 mi	673
2011	85.0%	55,288 mi	120
2008	84.1%	78,999 mi	135
2007	81.9%	81,440 mi	145
2006	80.7%	77,720 mi	260
2005	82.7%	74,242 mi	183
1986	75.9%	115,185 mi	123
1985	75.8%	115,574 mi	143

Which year BMW 6 Series 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 35,827 miles (newest year) to 115,574 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 6 Series.

See the buying guide →

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