peugeot 307cc 06 heater matrix probs

[bubblebobble]

Hi,
normally dont venture into here but Decided to ask for some advice regarding my wifes pug.
Ok, so the heater matrix > pipework joint behind the bulkhead was leaking.
I have removed the matrix and the pipework.
Having looked at the joint I notice it is sealed with 2 sealing rings.
My question is this, the sealing rings seem tapered, are they just a standard o ring that deforms when crushed or are they actually tapered?
If they are the latter then what is the technical name for an o ring with that cross section ? where can I get some?
Apparently Peugeot dont sell them separately, you have to buy the pipe assembly also.
Also having pressure tested the heater matrix that is leaking also so will need renewing.
Any advice as too where to purchase matrix and seals would be greatly appreciated.

cheers guys

Bud

[C.A.R.]

Looks like you'll have to buy all the pipes in this picture to get the o-rings you'll need.

Price inc VAT is £22.87 so it's not horrific anyway, just a pain.

If you need the matrix too then it's £152.71 but you do get your O-rings for that!