W12 long term reliability issues?

[tgr]

I've done a search but no real insight.

Does anyone have any experience of problems with the W12 either in its VAG application or in a Bentley? Would be interested, not least because the W8 in the Passat appeared fragile

[tgr]

From the lack of response I deduce that it is an utterly impregnable design, setting new standards in precision engineering for road cars!

[oilyrag1424]

Had mine for just over 18 months and not had one single problem. But is now going up for sale.
M

[Tame Technician]

I've worked at an Audi dealer for 6 years. Working on all sorts from a 5 cylinder quatro to the latest R8 V10's new A6 A7 and A8.

Still have never seen a W12.

[Dr G]

We've only got one customer with a W12; in recently for a routine service and minor (non engine related) electrical gremlins.

[tgr]

Many thanks Gents. On this 'straw poll' basis it seems to be a very good unit. Electrical issues can take a while to track down but they're not as expensive as a major engine problem are they?!

[huwp]

tgr said:

Many thanks Gents. On this 'straw poll' basis it seems to be a very good unit. Electrical issues can take a while to track down but they're not as expensive as a major engine problem are they?!

I think I read recently of a chap who bought a Bentley Continental which required a new loom following electrical gremlins........cost over £20,000!

[Seeker UK]

huwp said:

...cost over £20,000!

Tat might be more down to being Bentley than W12. ;-)

[tgr]

GBP 20k? That's potty. He won't be thanking his lucky stars the engine's solid, then

[Dr G]

I've seen an A8 and Q7 diagnosed as needing similar work but both cars had taken very deep baths!

[tgr]

currently a thread in general gassing about the phaeton. W12 seems to get a slagging off. who is correct?!

[blackcurrant]

w12 sweet smooth engine reliable etc always starts audi do not give a any other work when it came up for 100 k service just std service for ever so looks like bomb proof.currently selling the A8L that the engine is in. personal reasons on sale here so come back if you interested in this epic piece of engineering