Running hotter than usual 633csi (archive)

I'm currently staying at my folks' vacation spot in Florida. My father, recently, brought his 6er down here to keep it permanently stored in the garage. I've driven it a few times and have noticed that:
1. the temp needle quickly passes the "twelve o'clock" position during stop and go driving.
2. the auxilliary fan does not come on, unless the A/C is on.

I've removed the fan sensors and made sure there was no corrosion. Bled system with heater on high=air should be out of system. When I idle the car and short the high speed fan, the temp needle holds at twelve o'clock. Relays K1 and K6 are in working order. My questions are:
1. why does the fan not kick on?
2. how to test for functioning thermostat. Should I remove it and try running without it(Car is only driven in hot climate)?
Any advice is appreciated. Replies can be made to mrbmw@sunline.net

Thanks, Pete S.

Follow Ups:

Get blue low temp switck from www.bmpd.com More Shawn Luther 18:36 6/10/2000 (0)

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