I need help too. My choices are a 2004 X5 with 96,000 kms, and two of 2006 with 150,000 kms and 138,000 kms. All are with V6 3 litre engines.
It is obvious that how each car was maintained plays a major role but are there major differences in the 2004 to 2006 ones. I am presuming that all these are E53 vehicles as none has the 3rd row seating in it.
I am in Canada.