I have a 95 840. Some of the windows will go up when they are activated to go down. The drivers seat will go forward when it is activated to go backward. Does anybody have any idea why this is happening or could you direct me to a thread that addresses this issue?
Bimmerman44
Start by getting the batteries fully charged - or replaced if they are not holding a charge.
Timm..2007 E64 650i Individual Sport..1999 E31 840ci Individual Sport..ex owner of 2000 E38 740..1999 E38 740i V8 M62..1998 E38 735i V8..1993 E32 730i V8..1988 E28 518i
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My steering wheel does the same thing- up=down, out= in and vice~versa. New batteries not withstanding.
Regards,
M.R.
Last edited by M.Rad.; 05-03-2012 at 11:30 AM.
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Going into year two with this issue...
Same issue on my drivers seat.
I am thinking of switching the wires to fix the issue.
Yes, but are they fully charged? What is the termianl voltage at the moment with the car not running?
Timm..2007 E64 650i Individual Sport..1999 E31 840ci Individual Sport..ex owner of 2000 E38 740..1999 E38 740i V8 M62..1998 E38 735i V8..1993 E32 730i V8..1988 E28 518i
My BMW Repair YouTube Channel
My Current 840ci Sport Individual
My Current 650ci Sport Individual
My E31 Repair and Information Website
My E38 Repair and Information Website
My E63/E64 Repair and Information Website
Chase - Heroes to a generation
I've asked this on multiple occasions in the past but never got a clear answer:
For those with BMW DIS and experiencing the mystery reversed operation on some components... What happens if you monitor the inputs of the faulty module while operating the window switches, steering column adjustment stalk, mirror adjustment switch or seat adjustment switches (depending on fault)? Does DIS show the correct directions? In other words, are the inputs right or wrong?
Secondly, what happens if you activate the component through DIS (sadly not possible for the windows, but the steering column, mirrors and seats can be operated from within DIS)? Is this operation reversed as well for the faulty components? In other words, are the outputs right or wrong?
Did anyone ever find a fix for the seat reversed polarity problem?
Is it happening after the car has been in use for some time or directly after having the batteries disconnected?
It’s happened since I’ve own it. I have changed the batteries, both are brand new.
This is a growing problem with out 80's era electronics, the variant programming within a module is being lost or corrupted - and this can reverse the action of the seat, same on the steering column - it causes battery drain on GM and TRANS FAIL-SAFE on the gearbox EGS!
Timm..2007 E64 650i Individual Sport..1999 E31 840ci Individual Sport..ex owner of 2000 E38 740..1999 E38 740i V8 M62..1998 E38 735i V8..1993 E32 730i V8..1988 E28 518i
My BMW Repair YouTube Channel
My Current 840ci Sport Individual
My Current 650ci Sport Individual
My E31 Repair and Information Website
My E38 Repair and Information Website
My E63/E64 Repair and Information Website
Chase - Heroes to a generation
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