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Battery Disconnect Switch (archive)

[ Follow Ups ] [ 7-series (E32) Message Board ] [ Msg. Board FAQ ]

Posted by gale on January 06, 2001 at 19:24:29:

Did you know that all of our cars came from the factory with a battery disconnect switch? Ref. the "Service Booklet" addendum to the owner's manual (pg. 6 in mine) under "Pre-Delivery Inspection". The last item under "Body" is: "Remove battery disconnect switch". It would be located behind that mystery cover (Bentley's pg. 020-15) in the right-rear footwell below the seat cushion where the negative lead from the battery is grounded.

Does anyone know more about it? Would it work for a permanent install (voltage drop, amperage, etc.)? My local dealer said they're all sent back to BMW & their parts dept. computer was down & couldn't pull up part no. & price info. I suppose an aftermarket switch would work o.k. but the factory original would be an elegant solution. It would be great to flip a switch for resetting the check engine light or for parking the car for prolonged periods, without having to pop the rear seat bottom out, especially for those with
heated/power rear seats. Would even make a good anti-theft device, all except for having to re-enter radio code/stations, & obc stuff.

92 735i

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