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What does the Heat exchanger temperature sensor control ?
Hello, I have a 83 911 SC and the heat is...well...poo. I do NOT have a automatic heat switch, no footwell blowers, nor any type of sensor in the car near the rearview mirror or anywhere else (I've been researching this for two days). So, what the heck does the heat exchanger temperature sensor control.....control, if anything? Rear engine compartment blower works off the heater switch on emergency brake. Bentley doesn't mention it. Oh, and the heat exchanger valves open and shut like a charm. Thanks!
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