How to identify the source of cooling problems?
One of our cars (a 528E) is showing in increase of heat. Or is it a decrease in cooling ability?? It runs hotter than previously. The change was sudden in its onset.
I replaced the thermostat and that made for no real difference. The car not too long ago received a new water pump. How to tell if the problem is due to the radiator? Or perhaps the clutch on the fan?? Or ???
Any input appreciated
'00 ML320 "Casper"
'92 400E "Stella"