Cooling System Advice Needed for 99' 540iA!!!
I have a 1999 540iA and have been trying to figure out what manufacturer makes the best and most reliable water pumps? Also which impeller is better to have, metal or composite? What is the opinions on Zionsville Radiators? Any advice will be greatly appreciated..I am getting prepared to put a newer engine and transmission in my 540i and just want to have the best and most reliable parts i can use.