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 96-V4: Heater Valve Copper Wire
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SAAB96L
V4 Fan

United Kingdom
147 Posts

Posted - 13 Oct 2021 :  20:54:12 Show Profile Reply with Quote
Hello,

I am in the process of removing the engine from my 96. I have noted a rigid thermal copper wire, that goes from the heater valve control in to the heater matrix box.

It is certainly not for adjusting the water flow to regulate the temperature. as I can see that cable quite clearly.

Grateful if anyone can say what it is please.

Thank you.

Richard.

melle
V4 Guru

United Kingdom
3418 Posts

Posted - 13 Oct 2021 :  23:43:03 Show Profile Reply with Quote
It's a thermostat, there's a coil on the end but I can't remember where that goes exactly. The wire is filled with ether, so make sure you don't damage it (although I'm sure you can happily live without it).

www.saabv4.com

Edited by - melle on 14 Oct 2021 00:12:37
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SAAB96L
V4 Fan

United Kingdom
147 Posts

Posted - 14 Oct 2021 :  08:56:44 Show Profile Reply with Quote
Thanks Melle, but what is it actually regulating ??

Surely not the heat output, as the hot/cold lever is doing that.

It may become clearer when I disassemble the the heater matrix box and the heater valve.

Regards.

Richard.
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chris steeden
V4 Fan

United Kingdom
148 Posts

Posted - 14 Oct 2021 :  10:31:30 Show Profile Reply with Quote
I believe that the phile terminates in the warm air outlet duct/box (inside the car). It helps maintain a constant temperature outlet. Must admit that I can't see the reason for it except the designers thought it would give a more refined/accurate control of temperature.

Edited by - chris steeden on 15 Oct 2021 07:53:31
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green96v4
V4 Mad

Canada
621 Posts

Posted - 14 Oct 2021 :  12:05:38 Show Profile Reply with Quote
when I took my heater box apart it was just coiled up under 2 metal tabs inside the heater box (probably just to stop it rattling) I replaced my heater valve recently with an E-Type valve (half the price) and just pushed the coiled wire into the hole
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72sonett3
V4 Fanatic

Spain
264 Posts

Posted - 16 Oct 2021 :  22:22:37 Show Profile Reply with Quote
It is not a wire, do NOT cut it!

It is a thin tube and it and the bulb at the end is filled with ether. The ether expands when heated and regulates the thermostatic heater valve.

--
'72 97
'77 96L conv.
'95 900SE conv.
'99 9-3T
? 006
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