 I bought a 2013 CPO 528XI and I also got the 100K warranty. Lucky I did. The first thing I noticed was the door panels and console covering coloring coming off. The tan interior on the door panels and console was turning.  At first I thought it was dirt. But when I started “cleaning” it I realized it was actually the tan coloring coming off.  Brake rotors have to be replaced every 25,000 of highway driving.  Next BMW had to replace the transaxle.  Then the turbo charger and all lines had to be replaced.  It uses a quart of oil every 6,000 miles. BMW says that is normal.  After turbo replaced, my gas mileage has gone down by 4 MPG.  I’m 66 years of age and I have had many cars in my life time. But in all honestly, I can actually say this is the worse car I have ever owned. And I have owned, everything from Mercedes to VWs to Corvettes to Chevy trucks. The car is made of cheap materials.Finallly sold the piece of junk BMW and bought a Mercedes E Class. Very happy.  What a difference.  Love the Mercedes.