help me with part number :)

[Nick_f]

Hey guys, new to posting on this forum, but very long time lurker

I used a DIY to replace the EGR hoses on my 2006 tdi and with great success (the two that conects to the firewall)

When i took the car for a spin i noticed the coolant leak was still present, but from another hose.
I searched the net and couldn't be %100 sure on the part or the part number before I go to the local Vdub dealer.

found a few links but no part numbers. It is the below the EGR and and has a foil wrap around it working its way to the top of the motor (not exactly sure were it ends up yet)

I found this photo and the hose i need is the one with the arrow on the left pointing to it. Number one on the photo



i also tried cutting the line and reattaching it but still a fast drip coming from the hose

any help would be much appreciated

[Nick_f]

Update.

I went to a local VW dealer with the picture, and they couldn't be 100% sure what part number it is on the schematic. They want me to bring the car in to get a look at it, but the car is on Jack stands and I'll fix the car.

[chittychittybangbang]

The foil wrap thing is the vacuum actuator for the EGR cooler valve. That metal line coming out of it is a vac line.

I think hose #1 is #24 in the diagram attached. I can't tell you more than that but I'm pretty sure it's #24.

[Nick_f]

THanks for the reply, but i already replaced part number 24. it is number 3 on the photo i posted is the pipe i replaced. comes in a set with another pipe.

Number One in the photo i posted is the pipe i need. it has a heat shield wrap around unlike the parachute cover over the EGR cooler valve.

Bump

[Nick_f]

after looking at the car, i can be certain it is part number 20.

comes from the top rad hose, and a union that connects to the motor, than snakes down to the EGR cooler.

[Nick_f]

Took the pipe off which is a PIA.

part number on the pipe is 3co 121 157 aa if anyone else has a leak like this