Just purchased a 2009 E320 and plan to do much of the maintenance myself. I purchased the Star Service DVD but see that it refers to the need for a Star Diagnostic tool. Where can I get information on why, how to use, where to purchase and any other pertinent information. My first job is to bleed the brakes and according to the manual, I need the SDS to do that correctly. Thanks for your help. Please respond to this thread or email me.