I replaced mine today. It's not that difficult of a job. It took me about 2.5 hours and it was easier than expected. I did not remove the power steering pump as the E46 fanatics mentioned. Once I got the housing loose there was plenty of play to remove the gasket there in place and put the new one in. I did remove the vanos bolt from the back side because it wasn't that difficult. Overall I am happy this is done. On to the next project!!

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2010 X5M /// R63 AMG...Wifey's 540HP Family Hualer

2001 X5 3.0i Sport 335,448 miles & counting...
SMG M3 Steering wheel
E46 Stainless Racing Headers
4.6is Exhaust
Turner Pulleys
Afe Intake
Brembo drilled rotors
PowerFlex Bushings
Hualingan
30mm H&R Spacers rear
20mm H&R Spacers front
Bavarian Autosport High-Performance Coils
Active Autowerke's Performance Software