What is buyer check #1 when buying a 1990 BMW 6 Series (E63/E64)?

On the 645Ci and 650i V8s, idle the car when warm for 5 minutes then blip the throttle; a puff of blue smoke means the valve stem seals are failing (a £2,000+ repair).

What is buyer check #2 when buying a 1990 BMW 6 Series (E63/E64)?

Check the complex folding roof mechanism on the E64 convertible; ensure it opens fully without hesitation and that the rear window drops correctly.

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1990 BMW 6 Series (E63/E64)

Browse our directory of 1990 BMW 6 Series (E63/E64) vehicles. Access instant MOT history reports, tax status, and reliability insights for any registration listed below.

Registration Directory

E24 CMD E24 REV G201 TYX G217 WAV G22 VUL G322 SGO G334 WYK G558 VKE G55 RMW G635 AMO G635 BMW G669 XPM G686 TRR H636 FPD

Showing registrations 1–14 of 14 for the 1990 BMW 6 Series (E63/E64). Select any plate for an instant vehicle history check.

Buying Tips for the 1990 BMW 6 Series (E63/E64)

On the 645Ci and 650i V8s, idle the car when warm for 5 minutes then blip the throttle; a puff of blue smoke means the valve stem seals are failing (a £2,000+ repair).
Check the complex folding roof mechanism on the E64 convertible; ensure it opens fully without hesitation and that the rear window drops correctly.
Listen for a 'ticking' noise from the V8 engines, which can indicate worn timing chain guides, another catastrophic failure point.
Test the early iDrive system (CCC); random reboots or a frozen screen require a costly head unit rebuild.
Inspect the gearbox for harsh shifting or a 'transmission fault' warning; the mechatronic sealing sleeve frequently leaks fluid.

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