virgo193

Audi a6 c5 v6 AGA
As my post couple weeks ago, my heater core hose (return) is leaking at the quick coupling connected to engine. The o-ring in quick coupling is worn.<img src="http://pictureposter.audiworld.com/2/heater core hose o-ring.jpg">
however, I check the coupling housing is fine.So I am wonding if I can buy a o-ring only, not a whole hose (very expensive),but there is no any information about the o-ring in ETKA.

Could anyone help to give me the P/N of the o-ring.

SloopJohnB@mac.com

Just ask your dealer parts guy or go to home depot and get a buna-n ring. You can also go online (google) and get a Vuitton o-ring. (gotta love spell check!) .

RTnDL

You can likely bring it into NAPA and they will match it up or you could just purchase an o-ring kit at harbor freight for around $10. I picked up the kit last year and replaced all the coolant o-rings when I had the engine out.

ezveedub

I think there is an o-ring from the VWs that may be the same. It's a 20x3mm size o-ring (N-903-653-02). That o-ring goes on a coolant pipe fitted into the block on the 1.8T transverse engines.

virgo193

I had checked the worn o-ring the size should be 22X3.6 , and I also find a quick coupling that is for passat B5.5 heater core pipe p/n
1J0122291d $20 ,Now I am going to use the o-rign in it to replace my worn o-ring.