Stretched Cam chain / faulty intake camshaft adjuster solenoid
it seems my dodgey idle is down to either a stretched cam chain or a faulty intake camshaft adjuster solenoid, neither of which are particularly cheap or easy to fix apparently.
How would i go about checking if the cam chain is stretched? I assume its not an easy job from the times i'm getting quoted.
Theres also a suggestion on some of the VW forums that giving the vag w8's solenoid a healthy 12v shock can clear some of the crap from the valves, is the design of the solenoid similar / the same on the v6 engines?