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IMPORTANT: enter the case-INsensitive alphabetic (no numbers) code AND WRITE SOME SHORT summary of changes (below) if you are saving changes. (not required for previewing changes). Wiki-spamming is not tolerated, will be removed, so it does NOT even show up in history. Spammers go away now. Visit Preferences to set your user name Summary of change: This page is a compilation of information I have found regarding the operations of single variable vanos using two solenoids as used by BMW in the S50B30 engine as well as the most comprehensive single file I have found regarding Vanos found online. Here is a very comprehensive pdf file I found on some chinese document website. It contains information on all of the vanos systems bmw offers. http://rapidshare.com/files/454023393/bmw_mfp-pi_vanos_en.pdf Some pics in german of the operations of the vanos system and the amount of travel on the inlet cam. I donĀ“t understand german so somebody else will have to make sense of these images and the information. http://wp1016621.wp027.webpack.hosteurope.de/fotost/f01126/21.jpg http://wp1016621.wp027.webpack.hosteurope.de/fotost/f01126/22.jpg http://wp1016621.wp027.webpack.hosteurope.de/fotost/f01126/23.jpg http://wp1016621.wp027.webpack.hosteurope.de/fotost/f01126/24.jpg http://wp1016621.wp027.webpack.hosteurope.de/fotost/f01126/25.jpg http://wp1016621.wp027.webpack.hosteurope.de/fotost/f01126/26.jpg http://wp1016621.wp027.webpack.hosteurope.de/fotost/f01126/27.jpg http://wp1016621.wp027.webpack.hosteurope.de/fotost/f01126/28.jpg Optional: Add document to category: Wiki formatting: * is Bullet list ** Bullet list subentry ... '''Bold''', ---- is horizontal ruler, <code> preformatted text... </code> See wiki editing HELP for tables and other formatting tips and tricks.