BMW 6 Series (1986)

123 real MOT outcomes analysed • 75.9% first-time pass rate

1986 BMW 6 Series

CarHunch analysed 123 real MOT records for the 1986 BMW 6 Series. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

Average reliability 4.1% below UK average
75.9%
pass MOT first time
UK average: ~80%
115,740
typical mileage
85,930–141,510 middle half
16.3%
ever had a dangerous defect
recorded at any MOT
1.98
avg MOT failures per car
over 8.5 tests on record

What to check before buying a 1986 BMW 6 Series

Practical pre-purchase checks for this age and model.

  • 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
  • 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
  • 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
  • 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.

Before you buy a BMW 6 Series

MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.

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Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Petrol (99%) 122 75.7% 1.99
Diesel (1%) 1 100% 0

Mileage Distribution

Most 1986 BMW 6 Series vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.

85,930
low mileage
115,740
typical
141,510
high mileage

Half of all 1986 BMW 6 Series vehicles fall between 85,930 and 141,510 miles.

1986 BMW 6 Series — Still on the Road

27 vehicles still getting MOTs in 2025 — 73% of the peak remain.

33 27 2014 2025

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2025.

MOT History Averages

8.5
Avg MOT tests per vehicle
1.98
Avg failures per vehicle
8
Avg advisories per vehicle

Found a specific BMW 6 Series?

Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.

UK

Other model years — BMW 6 Series:

1985 2005 2006 2007 2008 2011 2012 2013 2017 2018 2019 2020