I have the same thing,but it took me sometime to figure the way for ignition to be detected.But it was just because of 16 pin to 20 pin connector.Note that if you have a round interface under the hood,you will need an adapter and plug the USB head into it,because if you plug it in the 16 pin located in driver foot well,you won't be able to access some modules.

But other than that,it was a good buy.Although I still can't use it at full potential,some connector stuff,I will have to get a different adapter.

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e53 '00 4.4i Oxford Green II Freshly rebuilt tranny(2nd one) and transfer case/front shaft
e70 '08 3.0si Sapphire Black cinnamon leather 7 seats
e61 '06 530XI Sports Touring Silver - SOLD