I heard years ago that you should never jump a BMW cause the computers were way too sensitive and somehow can overload and that batteries should only be trickle charged in the car.

I'm sorry if I'm the bearer of bad news

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I swear, my cars are like a girlfriend.
Sometimes its a rough ride, sometimes its smooth motorin'.
Sometimes she doesnt like how i treat her and sometimes i dont like how she behaves.
BUT at the end of the day, she loves it when I am inside her.

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'91 850i
'05 X5 4.4i
'09 Clubman S