MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: K03MK5 on May 13, 2023, 10:11:37 pm

Title: Tapping noise on Idle
Post by: K03MK5 on May 13, 2023, 10:11:37 pm

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 

Title: Re: Tapping noise on Idle
Post by: Clarkj93 on May 13, 2023, 10:18:59 pm

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:

Title: Re: Tapping noise on Idle
Post by: baconator on May 15, 2023, 01:08:42 am

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

Title: Re: Tapping noise on Idle
Post by: OllieVRS on May 15, 2023, 03:31:56 pm

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?

Title: Re: Tapping noise on Idle
Post by: breeze on May 16, 2023, 06:49:23 am

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.