Water pump o rings help?

[theycallmesike]

Hello all, I'm in the process of replacing my water pump. I bought this kit which comes with this water pump. I am wondering where those two large o-rings go? I can't seem to figure it out. It comes with the little metal connector between the oil cooler and the water pump, and that already has the o-rings on it, so it's not there. I emailed FCP but no response yet. It seems like the other kids on FCP don't have these two O-rings. I know it's not the small one that goes on the plastic connector cooling pipe because I have that separate. Are these replacements for the internal orings of the water pump? (# 11 and 21 in this diagram, wouldnt those already be installed in the waterpump assembly) The main elbows are all metal clips so I'm super confused where they would attach to. Any help would be appreciated.

[Smac770]

When changing the coolant pump on the CAE or CPM engines (B8 2.0T), you'll pull the lower radiator hose at the radiator to drain the coolant (easier than messing with the drain spout). Then you'll pull the small hard pipe and the two radiator hoses off the coolant pump. And to make it easier, I pulled the upper radiator hose at the radiator so I could just move that hose out of the engine bay entirely (it will have coolant sitting in it, so be careful to tilt it so the coolant spills into something).

So now you're five connections unconnected, and they all have o-rings. That's what those large o-rings are for, the inside of the ends of the larger radiator hoses, but just two for the ends to the coolant pump. That kit as pictured is missing the o-ring for the small pipe; that's guaranteed to leak if you don't replace that o-ring.

You don't say anything about the vehicle or engine, so it's a bit hard to quote specifically accurate p/n info. Profile says '09 A4 avant? Same vehicle as mine. You need the other catalog page, for the whole cooling system:
https://nemigaparts.com/cat_spares/e...q/636u/121310/

So you see upper radiator hose [10], with o-ring [8] at the coolant pump end and o-ring [2] at the radiator end. Then lower radiator hose [1&6] with the [8] and the [2] o-rings again. And then the small hard pipe [15] with o-ring [16].

I also removed the coolant reservoir to make things really easy, but notice there's no o-ring denoted for the hose [9]. So left it as is.

The o-rings inside those quick disconnect ends, make sure the o-ring is seated into the groove. Make note of where the old one is coming out of (you'll need a pick to get it out).

https://www.audizine.com/forum/showt...-Aug-08-Dec-24

If asking about B8 2.0T, it's usually better to just post right in the B8 A4 forum than the 2.0T engine forum.

[theycallmesike]

Oops sorry, I thought this was the B8 2.0 forum. Ugh my mistake. But thanks for the reply. I definitely didn't disconnect my radiator hoses to replace this but I did replace the O ring on the hard coolant pipe. Thanks Smac