 We were very excited to buy the X5, it had stellar safety ratings and was fun to drive.  The problems started shortly after we bought it.  First the lights didn't work right.  Then the AC had problems.  We had to replace several window motors.  I got to be on a first-name basis with my service rep, as we have been in the shop almost every other month since we bought it. The quality of the materials in the vehicle was poor as well, the door handles are cheap plastic.  All in all, not a very pleasant experience with what we thought was a quality German brand. 