1989 Mercedes Benz 190E 2.6 12Cyl6.2L - Engine
AC works briefly and then goes out. when engine is turned off the AC fan continues to run for 10 to 15 minutes.
Adding freone helped briefly, then Cool air ceases. If you turn on and then turn off motor with AC on the radiator fan runs for at least 10 min. Does not run if AC is not on.