Advice on buying E70: which year, model?

[cn90]

Hi guys,

I currently own 2 BMWs:
- 1998 528i E39 with 5sp MT and 170K miles, great car.
- 2006 X5 M54 6sp MT with 125K miles, also a great car.

Wife wants a "newer" X5, so it is likely an E70.
But from talking to my BMW gurus, who own BMW repair shop, they told me the last good year was a 2006 X5 with M54!

The same gurus told me that for E70, the problems are:

1. Electric Waterpump: this one I can handle, maybe replacing every 60K-80K so I am not stranded.

2. 3.5i Turbo with direct injection has issues with the injectors. They told me to stay away from

So, it looks like if I ever buy an E70 (with anywhere between 50K-90K miles), I am stuck with 2010 or earlier model with 3.0-liter engine.

Any advice, thoughts on E70: which year model to buy with the least headache?