Sorry to pile on...
I purchased my 2003 3.0 on 30 December 2009 with 64400. As part of the deal, they replaced the thermostat and one vacuum hose. Thermostats, they go in EVERY car. I have since then changed the oil (how dare they demand oil changes!) changed brakes pads and rotors and both the cabin and engine air filters (again, they should last for ever in a $50k+ car). I also replaced the spark plugs just for good feeling. The most any plug will last in 100K, even then why would you want to wait that long for something so simple to change. I now have 75100 on it already and nothing . I'm going to order oil and a filter after it stops raining just to give me something to do on the car .
O, and I had to buy new tires .
Before this BMW I thought I was a through and through Mercedes guy, I have grown to LOVE this BMW; for no other reason than I can do all this stuff myself. Good luck even touching an E class. Everything must be done at dealership (build quality and attention to detail is amazing though).