Quote:
Originally Posted by wazzz
Also footwell blowers help a lot with keeping the inside of windscreen and side windows dry on rainy days.
The footweel blowers won't work unless the rear engine compartment blower is also working.
Or else you need to modify the heater relay to bypass the reed switch inside.
A lot of threads here about this.
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The OP's '81 911SC uses a different heating system than the 911 3.2, i.e. no heater relay like the 911 3.2.