A6 / S6 (C5 Platform) Discussion Discussion forum for the C5 Audi A6 and S6 produced from 1998-2004

Battery Jump OK?

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Old Jul 31, 2007 | 11:57 AM
  #1  
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Default Battery Jump OK?

My 85 BMW 635 has been sitting so long now since I got the '00 A6 4.2 that the battery has gone down. I know I shouldn't jump the A6 from another car, but can I jump the 635 from the A6 w/o any problems.

Thanks
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Old Jul 31, 2007 | 12:25 PM
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Default

Done it many times. Just be careful.
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Old Jul 31, 2007 | 12:26 PM
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careful of what? thx
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Old Jul 31, 2007 | 12:27 PM
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Default The ground lead should be connected last, and disconnected first.

This is safest, as if it accidentally contacts the bodywork, nothing will happen. If you disconnect live + first, and it touches the body, bang.
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Old Jul 31, 2007 | 01:30 PM
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Default touch the wrong pole to the wrong pole... and watch the sparks fly...

do not do this. pray you are holding the rubber end if you mistakenly swap the contacts. always + to + and - to -. wait a bit of time, jump car, wait more, remove in same exact but in reverse order you put it on

or u can do what luv hate says, and do and + to + and - to ground(car body) for safety sake

(the battery, yes can "blow up" if the charge is sent backasswards) and never let the two cables clamps touch each other.
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Old Jul 31, 2007 | 01:43 PM
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Default Procedure :

Start donor car.

1) Connect red lead to + on donor car.
2) Connect other end of red lead to + on flat battery car.
3) Connect black lead to - on donor car
4) Connect other end of black lead to - on flat battery car.

Start flat battery car. Immediately disconnect in the reverse of the above order.

ie : Black lead first, then the red.
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Old Jul 31, 2007 | 01:55 PM
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Default If you have no other way ($35 jump pack is best) use the A6, but...

Do it with the A6 off. Do not run the A6 and try to jumper the Bimmer.
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Old Jul 31, 2007 | 01:56 PM
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Donor car does not need to be running. That's old skule.
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Old Jul 31, 2007 | 07:45 PM
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Default THANKS ALL...I just pulled the battery and had it charged.. will take it in tomorrow....

I'll know better in the future. Thos board is the best.

g
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Old Jul 31, 2007 | 08:46 PM
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Default I always make the final connection to a metal part in the engine bay of the dead car...

It's safer, and works just as well. Also, your first two steps should be reversed. Start with the dead battery, and work your way around. Also safer.

Koz.
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