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2004–2010 BMW 6 Series (E63/E64)

Browse our directory of 2004–2010 BMW 6 Series (E63/E64) vehicles. Access instant MOT history reports, tax status, and reliability insights for any registration listed below.

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Common Problems & Reliability

2
Serious
2
Moderate
0
Minor

The 2004–2010 BMW 6 Series (E63/E64) has 4 known issues. 2 of these are classified as serious faults that could be expensive to repair. 2 are moderate concerns worth inspecting before purchase.

V8 Coolant Pipe Leak (N62)

Serious

A coolant pipe running through the center of the V8 engine block leaks. The official fix is engine-out, but expanding "stent" pipes exist.

Est. repair cost: £800–£3,000

Valve Stem Seal Leak (N62)

Serious

The V8 engines burn massive amounts of oil and blow blue smoke when pulling away after idling. Seals harden and fail.

Est. repair cost: £1,500–£3,000

Convertible Roof Sensor Failure

Moderate

On the E64 convertible, the complex array of microswitches in the roof mechanism often fail, preventing operation.

Est. repair cost: £200–£800

Alternator Bracket Oil Leak

Moderate

A rubber figure-8 seal behind the alternator bracket leaks oil profusely on the V8 models.

Est. repair cost: £500–£1,000

View detailed BMW 6 Series (E63/E64) fault guide

Buying Tips for the 2004–2010 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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