I trust my 16yr BMW certified mechanic who does work on the side aside from the dealership. He told me if he can do it anybody willing to learn and follow instructions can. He's always willing to give me tips and I have the peace of mind knowing he's there for the heavy duty stuff if the need arises. I do 70% repairs and service myself. Anything too complicated or requiring a lift goes to my mech since he has one of those in his garage. So far I'm very happy with the work I've done following the bentley manual plus DIY threads. I just completed a cooling overhaul yesterday on my e39(which shares the same engine with the 6cyl x5) and I felt very accomplished. I enjoyed every minute of it.
Just do it!
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Last edited by BM109R; 05-06-2013 at 02:10 AM.