Done it on a 1996 328is and have had no problems in So. Cal. Also changed out the water pump and put on new drive belts while I was at it. Used the Understeer kit and 1.5 bottles of Water Wetter and BMW brand coolant. Temperature holds rock solid regardless of outside temp or A/C use. No fan allows great access for other work. Just tool out alternator to change voltage regulator and it was very easy with no fan.