New E53 owner here.

[fizzx]

Got a great deal from a buddy on his 2002 X5 3.0 w/ 115k miles https://www.flickr.com/photos/99228274@N00/13925931595/
I'm still searching for the right 4.8is in Lemans Blue to come along, but this was a no-brainer interim X5. It will take over DD activity from my E36M3 as it becomes more of a track/autox only machine.

to-do list:

• radio/obc pixels ... or lack of pixels. Can't read anything on the display. Apparently a very common issue. This ribbon cable supposedly fixes this? AKSpeedo
• need an aux input for the stereo ... I can't stand listening to the radio
• Pass side window slow or doesn't go down at all. Apparently another common issue.
• Pass side rear window randomly goes all the way down upon engine startup. I'm guessing the door switch is bad?
• Front wiper washer pump doesn't come on. Fuses look fine so maybe the pump is just dead?
• Tow hitch to occasionally pull the M3 to the track. Been told OEM is the only way to go on hitches if you pull a car.
• Front lights are heavily hazed/cloudy.

I look forward to learning about the little quirks of the X5 from everyone :-)