99 323i overheats when ideling! HELP!!!

[92teggsr]

I just bought a 99 bmw 323i and drove it from LA to Seattle. The car drove perfect the whole way except for when I was waiting at a drive thru sitting at idle for a few minutes and noticed that the car started to overheat. The second i started driving it went right back down to normal. I'm guessing it has to do with my fan. I've never heard it some on so i'm assuming a realy maybe?? First off, can anyone tell me where that relay is located and second, any other ideas what the issue could be?
Any help is very much appreciated.

[Bear]

I would guess the fan clutch is bad, in my limited experience ('88 750 and 90 325ic) the symptom you describe points at the fan clutch

[kayhanay]

you should go to the nearest carwash and clean your radiator and condenser. Make sure you open the pressure washer nozzle.

[titaniumbullet]

try cleaning your radiator first... and if it continues then I would blame it on the relays.