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Tapping noise on Idle

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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 :grin:

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

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 :grin:

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.

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