Technical details about the M62 engine available in the X5
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Here is a nice PDF document compiled by Rolf Drommer showing many current and old BMW colors with code.
Download link (1.86MB)

Here is a great software that runs on iPod/iPhone that allows you to measure several performances figures, thanks to the built-in accelerometer of your device.
Many report results are extremelly close to a real Dyno.
Some of …

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s0.addParam(”allowscriptaccess”,”always”);
s0.addParam(”wmode”,”opaque”);
s0.addVariable(”id”,”n0″);
s0.addVariable(”controlbar”,”bottom”);
s0.addVariable(”height”,”280″);
s0.addVariable(”playlist”,”none”);
s0.addVariable(”width”,”400″);
s0.addVariable(”autostart”,”false”);
s0.addVariable(”bufferlength”,”1″);
s0.addVariable(”displayclick”,”play”);
s0.addVariable(”icons”,”true”);
s0.addVariable(”linktarget”,”_blank”);
s0.addVariable(”mute”,”false”);
s0.addVariable(”quality”,”true”);
s0.addVariable(”repeat”,”none”);
s0.addVariable(”resizing”,”true”);
s0.addVariable(”shuffle”,”false”);
s0.addVariable(”stretching”,”uniform”);
s0.addVariable(”volume”,”50″);
s0.addVariable(”file”,”http://www.bmw-planet.com/lib/idrivebasic.flv”);
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Hi guys,
There you go some reference below with regards to engine oil capacity, so you know how much oil to buy exactly to feed your baby
Download link (12Kb)
HTH

Here is an official document from BMW explaining how to install those good looking lips for your front bumper. Enjoy.
Download link (700Kb)