sfzobie

While replacing my sparkplugs, I moved the overflow reservoir and just moving it a little caused this y connector to break instantly.

Called the dealer for this part and they said I have to replace the entire hose assembly for $150,which is insane since this piece isn't anything special.

I went to autozone/o'reilly but neither had Y connectors that were big enough, as a stop gap, Installed a 3 way T connector until I could get a replacement piece.

I have included a picture of my part, the key is where the missing piece is, the other picture is off the 55K DIY service post from a 3.2, and although the coolant tank is on the drivers side and the hose is longer, it looks like the exact same Y connector.

Any help finding this part would be greatly appreciated would be greatly appreciated.

Thanks

gom211

I broke mine too when I was replacing the bottle. Luckily I was doing at my friends shop (cts turbo) and I went through his bin full of hose connector and found a brass "Y" connector that was the right size for the hose. Don't know where it came from but worked for me.

cebo0650

Just looked it up in ETKA, and it looks like in the case of the 3.2 they also sell it as a whole hose assembly, but its only about $65.

P/N: 4F0 121 107 AG

sfzobie

Thanks for the replies, I wonder where I could source a brass/plastic connector. I wonder the importance of the y vs T for the expansion tank, as I have it set up currently. $65 is cheaper but it seems like an awfully expensive piece of plastic. I contacted the manufacturer of the part directly, and hopefully they will be able to source something for me.

Cheers

odoboyusa

For the price they are asking for the plastic part, i would just make it out of brass as long as the hoses do not kink.
In general if a T/Y breaks, I replace it with brass and have never had to deal with that again. plastic gets brittle with time.
If you can't find the part, let me know, I'm pretty sure I have one of those in my garage and you can have it.

haloguy628

What is the inner diameter of the Y?

haloguy628

It's 6mm or 1/4" inner diameter. Here are replacements:

Brass T:
Plastic Y: Dorman - Autograde Hard Vacuum Tubing Y Connector 1/4 x 1/4 x 1/4 Inch Part # 47353

sfzobie

Thanks, sorry I haven't checked the forum for a whie

Korndog

Any other gotcha's on the replacement of the coolant bottle? Have to do mine on my 2008 S6
Thanks!

haloguy628

Not really. Remove the airbox to get to it. Also I suggest replacing the OEM spring loaded hose clamps with screw type clamps.

Don't forget to connect the sensor plug on reassembly.