My 1991 BMW 745i runs hot what can it be thats causing the problem?

I changed the thermostat and I don't think the head gasket is damaged

My 1991 BMW 745i runs hot what can it be thats causing the problem?virus

flush the radiator with a cleaner,,it my be clogged with sediment,witch would keep it from cooling

My 1991 BMW 745i runs hot what can it be thats causing the problem?anti virus

oil change time?
OK First with the Engine Cold Remove the Radiator Cap, any Foam (Pinkish is a Cracked Transmission Cooler Line in the Radiator "Replace") or Rust on the Underside of the Cap Replace it! With the Cap Still Off Start the Engine, after a Minute or so do you Smell Exhaust in the Radiator? "Yes" Bad Head Gasket. Condition of Hoses; If Cracked or Feel Overly Soft When Warm Replace them! Might need to Flush/Boil out Cooling System and add New Coolant (50-50 Clean Water %26 Anti-Freeze)! Check for Condition of Belts %26 Possible Leak at Water Pump!
Old 7 series BMW's are notorious for their upkeep prices. The first thing I would do is an oil change, switch to a good fully synthetic oil such as Amisol or Redline, there are many others. You want a good oil because it will help cool your engine as it circulates through. The next thing I would do is a coolant change, this will also keep your car from rusting. Do a 50-50 mix of coolant and distilled water. ideally, this should be done every 2 years at the most. I am posting the link to a website below. It has various service recalls for your vehicle, these are know problems the dealer should cover, but maybe not 16 years later. However, if what I suggested does not work your problem may be here since cooling issues seem to be listed a couple of times.

http://www.automobilemag.com/am/1991/bmw...
Go to a mechanic.. that is your only answer man
listen bro, go to a mechanic. only he can help you professionally. peace!!
do a pressure check on the cooling system to see if it has a leak , , you can do a compression test too to see which cylinder might be leaking, if it is not leaking anywhere and the thermostat is new the sending unit/ sensor for the temp guage may be bad ? check the fans to make sure they are coming on too, otherwise get a bottle of ( koolit) it will lower your operating temp 20 degrees