Tapping noise on Idle

[K03MK5]

Hi all,

Have a 2008 Gti with the random tapping noise on idle.  Had the fuel lines wrapped in foam as advised by the forum but it’s still happening.  Randomly a cluster fault appeared on the reader then went away without erasing.  So now I’m thinking it could be the cluster itself at fault.  Any suggestions would be good.  Thanks 

[Clarkj93]

The injectors are nosiy on these but sometimes I get a tapping noise that sound alike it's behind the dash. Theory is it's a solonoid just not quite turning off but no running issues or any other symptoms and been like that for about 4 years now so

[baconator]

Have this too on an 05 GTI, sometimes at idle and sometimes while driving. Comes and goes 

[OllieVRS]

Try turning the fans off and on and see if this affects the tapping sound. I remember reading this was the fan flap solenoid or something getting stuck.

My Octavia used to have it but it seems to have fixed itself

Could you try to record a video of it happening and post it here?

[breeze]

If engine, try a can of Liqui Moly 5153 in the fuel tank. It tends to make engines run smoother. Even an oil change if it hasn’t been changed in a while. If it’s running a 30 weight oil, a 40 will quieten it down.