[b6tdi]

Hi,
2006 tdi is chuffing back through the inlet manifold. Think maybe its worn lifters.

 

[Seatman]

Hi, welcometomyturbodies
I think you might need to look at this faq assuming it's a pd engine. I'm not sure if it's the same but might have the info you need

http://www.myturbodiesel.com/1000q/multi/camshaft-inspection-replace-vw-tdi.htm

Or this one might be more relevent which is for the 2004-05 passat.

http://www.myturbodiesel.com/1000q/multi/PD-adjust-Idle-TDI.htm

 

[chittychittybangbang]

Hi,
2006 tdi is chuffing back through the inlet manifold. Think maybe its worn lifters.

Very possible. Take a look at the videos and see if it matches your sound.