I suggest seeking a local BMW shop that is experienced in the E-65 745 cars. It is a complex operation that might be quite expensive. First thing to do is to pinpoint the source before attempting repairs as this is something best taken on by someone who really knows the car, it might be something like a pinhole in a hose for all I know from here and without seeing the car myself.
Tuesday, April 28th, 2009 AT 11:38 AM