[urq] A/C Solenoid Valve Operation

[Maurits Jonkergouw]

As I understand correctly, the switch which turns on the A/C, also switches the solenoid valve underneath the watertray (same P/N as the  solenoid for the WOT switch on the firewall). What exactly is the purpose of this solenoid regarding fuel economy?

I was wondering if this solenoid (for the A/C) is faulty (and I know it is), will it stick in 'A/C ON or OFF' mode? When these solenoids go bad, do they always stick in OFF mode or ON mode? (0 vs +12 Volt).

Thanks.

Regards,
Maurits

1986 quattro GV
1985 Coupe GT KV
1982 Coupe GL DD