Drives me nuts. I just hit the down arrow button for the fan until it goes off every time I start it. I had a Z4 before this car and it didn't do that. Hummmm???
It's a convertible. Convertibles are notorious for for small leaks, high humidity in the cockpit, etc.
Porsche defaults the climate control to ON so the demister (along with AC for a source of 'dry' air) can prevent windscreen fogging and also to dry out the carpet, ductwork, etc. of any moisture to inhibit mold and mildew growth (again a common thing in convertibles).
Climate control always comes on when I first start the car.
That's why is called Climate Control. In the auto mode it will either cool or heat your car, just like your house. Also, I have owned convertibles for over 40 Years. They can smell a bit with hot & humid climates. I use to drive my Corvette in the winter with the top down and the heat blowing. Summers where just the opposite.
Old Hippie Young Heart
2000 S/3.2 Liter/Tiptronic/Boxster S Sport Package/Cruise Control/Slate Grey Metallic
Red Special Leather Interior/Red Floor Mats/Red Hand Painted Instrument Dials/Roll Bar/Windstop
Small Carbon Package/Leather Wrap Carbon Wheel/Center Console Exterior Color/Alum Carbon Shift Knob
AM/FM Radio w/CD Player & Changer/Digital Sound Package/18" Turbo Wheels/Wheel Caps w/Colored Crest
Drove my car today...how nice to finally get it out of the garage. I looked and my climate control is set in the manual mode; temp reading lo and fan on minimum...no irritating issues upon start up. I've never left the controls on automatic as long as I've owned the car.
__________________ JGM
2002 Boxster S
1973 911 Green FrankenMeanie
PCA DE Instructor circa '95