BMW 6 Series (2017)
2017 BMW 6 Series
CarHunch analysed 263 real MOT records for the 2017 BMW 6 Series. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 2017 BMW 6 Series punches well above the UK average with a 89.9% first-time pass rate against the national 80%, suggesting these are generally well-maintained cars—though one in four have encountered a dangerous defect at some point, which is a meaningful buyer concern. The diesel-dominated fleet (215 of 263 cars) passes at 89.7%, indicating the engine platform is holding up reliably.
At 46,667 miles median, these 6 Series are running relatively light for their age, and the 0.76 average failures per vehicle signals they don't demand major repairs on test day—but the 4.3 advisories per car point to accumulating wear on electrics, suspension, and trim, which is typical of premium cars hitting seven years old. Before buying, inspect the service history carefully and budget for non-urgent advisory work, as these cars reward preventive maintenance over reactive repairs.
What to check before buying a 2017 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.
- ⚠️ 25.1% of these vehicles have had a dangerous defect recorded. Enter the reg below — the full MOT history will show exactly what was flagged and whether it was resolved.
- 📄 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 |
|---|---|---|---|
| Diesel (82%) | 215 | 89.7% | 0.78 |
| Petrol (18%) | 48 | 91% | 0.67 |
Mileage Distribution
Most 2017 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.
Half of all 2017 BMW 6 Series vehicles fall between 37,872 and 59,552 miles.
2017 BMW 6 Series — Still on the Road
Strong survival — 241 vehicles still getting MOTs in 2025, 97% of the peak.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2020–2025.
MOT History Averages
Found a specific BMW 6 Series?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.