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      04-01-2011, 12:52 PM   #7
Dracon
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Drives: 2013 F10 M5
Join Date: Apr 2009
Location: Out and About

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2013 BMW M5  [0.00]
It'll most likely be a service function of the RDC module in your car. When you are in DIS select the module from the list after it does the quick test and click on the Service Functions button. You should be able to figure it out from there, I haven't done it before but I'm sure the function should be in there somewhere.