The bulletin 21 10 01.
Wastegate actuator rod rattle.
This rattle can occur on start up while idle or while accelerating from 1800 3000rpms.
The actuator is a boost actuated diaphragm inside a canister with a rod sticking out as shown below.
This caused the turbo to not have much boost.
Apparently it is the clip they will be installing.
After 1 year this is finally going to be fixed and no more rattle for us all.
Just got a call from vw today saying they have a fix.
I adjusted it counting the of turns and got the slack out.
I have the 2010 jetta wolfsburg.
So i adjusted it back.
Now as the tsb above states vw only covers 2008 2010 mk6 gtis.
Boost pressure is applied to the canister and once the boost is higher than the spring pressure inside the canister the wastegate actuator rod starts to move and open the wastegate.
Wastegate actuator rod rattle solved 06 24 2011 03 29 pm 74.
I had a small rattle at about 2000 rpm and traced it to the turbo actuator rod.
The rattle is caused by the wastegate actuator rod rubbing back and forth on the wastegate and can be quite annoying.