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draught-free ventilation (knurled wheel 3) (archive)
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Posted by RY on September 30, 2001 at 06:53:04:

Can anyone please explain how does the middle knurled wheel effect the ventilation. No other car has this. Will this blend cool air even if the air outside is warm and with no airconditioning working? I guess not but the book says: "Use knurled wheel 3 to blend the required amount of cool air into the air-flow to the upper body area" How does that work and who needs additional temperature control apart from the digital main control? What happens when air is being recirculated, will fresh air still come from outside? (otherwise it will come out hot and humid).

Thanks
RY

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