Should I buy a 2011–2018 BMW 6-Series?

Explore common problems, estimated repair costs and practical checks for the 2011–2018 BMW 6-Series. Use this guide to help assess a used car, then unlock a personalised report for the exact vehicle you're considering.

Common problems

1Moderate Likelihood

EGR cooler coolant leak and intake melting risk

Coolant level drops, sweet smell after a run, occasional smoke or a hot smell from the engine bay.

How to check

Warm the car fully, then let it idle for a minute after the drive with the climate off.

Estimated Repair Cost

£1,200

2High Likelihood

Timing Chain Stretch and Guide Wear

Rattle for a few seconds on cold start, rough running, engine warning light, or a history of chain noise getting worse over time.

How to check

Start the engine from cold after it has been left overnight and listen from outside with the bonnet area in front of you.

Estimated Repair Cost

£3,500

3Moderate Likelihood

Sunroof Drain / Roof Water Ingress

Wet headlining, damp carpets, condensation, musty smell, or electrical oddities after heavy rain.

How to check

Use the roof controls, then spend a few minutes inside with the windows shut and climate system on.

Estimated Repair Cost

£600

MOT Failure Rate

0%10%20%30%0–20,000 miles: 11.8% (1,144 failed / 9,666 tests)20,000–40,000 miles: 13.7% (4,877 failed / 35,613 tests)40,000–60,000 miles: 15.0% (5,453 failed / 36,342 tests)60,000–80,000 miles: 16.0% (4,442 failed / 27,715 tests)80,000–100,000 miles: 17.1% (3,028 failed / 17,736 tests)100,000–120,000 miles: 16.9% (1,545 failed / 9,117 tests)120,000–140,000 miles: 18.9% (772 failed / 4,093 tests)140,000–160,000 miles: 18.9% (282 failed / 1,493 tests)160,000–180,000 miles: 16.1% (83 failed / 516 tests)180,000–200,000 miles: 20.7% (41 failed / 198 tests)020k40k60k80k100k120k140k160k180k200kMilesFailure rate
2011–2018 BMW 6-Series

BMW 6-Series buying questions

Is a 2011–2018 BMW 6-Series worth buying?

It can be, but only if the individual car backs it up. For the 2011–2018 BMW 6-Series, treat model-level patterns as viewing priorities and let condition, history and inspection evidence decide.

What common problems affect the BMW 6-Series (2011–2018)?

The problem cards above list the model-level checks for this guide. Read them as priorities for inspection and paperwork review, not proof that every example will have those faults.

What should I check before buying a BMW 6-Series?

Look for evidence, not just assurances: MOT advisories, service history, repair invoices, warning lights, fluid leaks, tyre and brake condition, and how the car behaves on a proper test drive. And of course, look at your personalised Should I Buy This Car? report, outlining a full list of common issues in detail, a personalised road test, a plain-English explanation and a MotorIQ score.

A model guide is useful. A report on its registration is better.

The guide above gives you the model-level pattern. A personalised MotorIQ report checks the registration-specific record and turns it into an ownership view before you commit.

Or enter the vehicle manually