Recently I had my Volvo garage replace all the hoses on my '95 T5 wagon simply as a general precaution against unexpected failure with summer just around the corner.

Since then I have been frustrated with the vehicle using a substantial amount of coolant.

looking fdor leaks, I think there may be an "O" ring leaking in the heater hose running next to the firewall as green fluid is collecting on the heat shield.

My VADIS indicates there are 3 "O" rings in the heater hoses, presumably 1 is where the leak is - but where are the other 2 "O" rings located?

I've never had anything to do with the clips Volvo use to connect the hoses (they look to be a quick-release type) and wonder whether special tools are needed to remove the clips?

Also, are there any traps for a relative beginner replacing the heater hose "O" rings?

I intend testing the cooling system after the "O" rings have been replaced to make certain the leak(s) have been eliminated.

Does anyone know where I can purchase a pressure test unit that fits directly onto the Volvo coolant reservoir?

Thanks in anticipation.

 

Part list for Turbo/T5 models

9186849 - Heater Hose Inlet
9186847 - Heater Hose Outlet

3545662 - O-Ring Kit
-- 2 1-ear round white plastic clips (reuse old ones)
-- 2 O-rings
-- 1 white plastic washer
-- 1 black plastic washer

3522035 - 1 Plastic Snap-on coupling

3545662 - O-Ring Kit
-- 2 2-ear square white plastic clips
-- 2 O-rings
-- 2 white plastic washers

9134878 (Plz verify) - 2 Heater Pipe

3545586 - 2 O-Rings (1 between each Pipe and Heater Core)

9144221 - Heat Exchanger/Heater Core

 

I like MadeInJapan's idea of making your own using a regular schrader tire valve and your old coolant tank cap. I guess that it wouldn't hurt anything to put the tire valve on your new one. It would just look strange to be looking at that tire valve everytime that I opened my hood to check something -- like oil level. There is a regular schrader tire valve on the fuel rail, so I guess that the idea is not so strange afterall.

I spent something like $100 for a nice coolant pressure leakdown test kit from NAPA -- and it didn't have proper adapter for Volvo. I proceeded ahead using the leakdown test pump from NAPA. I had to be very careful to prevent the pump from missle-lauching off of the reserve tank. Because of this fear, I checked to see whether cooling system would hold pressure at only 16 psi.

 

Thanks for the prompt response fellas.

This has given me a few ideas how to go about doing the job.

Much appreciated.

Volgrrr