E34 battery move (engine to rear seat)

[ktteoh]

some questions:

1. if i used maintenance-free batteries, do i still need the vent tubes?

2. what cables do i need to source for? i guess from an electrical perspective, i need two one for +ve and another for the -ve ground. is there anyway i can salvage the existing cable used in the current (engine bay) position?

3. if no for (2), what is the part number for the correct cables and could i replace that with just any heavy duty electrical cable (what gauge would that be anyway)

On second thoughts, you'll also need the battery tray out of an under seat installed vehicle, and dont forget the vent tubes.

[vadim_braia]

some questions:

1. if i used maintenance-free batteries, do i still need the vent tubes?

2. what cables do i need to source for? i guess from an electrical perspective, i need two one for +ve and another for the -ve ground. is there anyway i can salvage the existing cable used in the current (engine bay) position?

3. if no for (2), what is the part number for the correct cables and could i replace that with just any heavy duty electrical cable (what gauge would that be anyway)

You can't save the old + cable , because it's to short and to thin

you will need the + cable ( a BMW original cable ) , you can use the old - cable(ground) . I connect the - cable to the right seat screw( the left one)
the cable part number : http://www.realoem.com/bmw/showparts...14&hg=12&fg=29