I'm still debating on touching the tranny fuild. Some say do it, some say dont fix what's not broken...

Im thinking:
Transaxle fuild
Diff's fuild
Power steering (again via turkey baster method)
fuel filter
air filter

Anything else?

I have been doing oil changes with BMW oil and filters every 5K miles since I purchased her at 37K miles. I also add a bottle of techron to the fuel at each oil change.

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2003 X5 3.0i
Premium & Sport package
Steel Gray Metallic
55K miles and counting