Re: <E34> Radio Code - Central Locking and Power Windows

[Drew Mouton <drew@xxxxxxxxx>]

On Wednesday, March 26, 2003, at 01:56 PM, Ron Buchalski wrote:

>> Date: Wed, 26 Mar 2003 18:36:27 +1200
>> From: "Chris Northover" <chris.northover@domain.elided>
>> Subject: <E34> Radio Code - Central Locking and Power Windows
>>
>> Maybe this has happened to someone else?  My 1990 525i E34 has started
>> asking for the radio code every time I turn off the ignition, then 
>> turn it
>> on again.  Also, the Central Locking and Power Windows give up at the 
>> same
>> time.  The central locking and windows will return if I leave it 
>> alone for a
>> few hours.  I'm not sure where to start on this one!
>>
If it doesn't turn out to be battery related, it may be in the control 
modules.

If you lift up the rear seat, you'll find a supplementary fuse, relay 
and module box on the drivers side. There are probably two large 
modules there - each about the size of a paperback book, perhaps one 
black, one green. They pull straight up and out.

The heavier of the two contains a bunch of switching relays - which 
control things like the sunroof, windows, power locks, etc. The other 
is a general module - ie circuit board and components - which also 
affect the accessories. When my previous E34 started to show voodoo, I 
called the folks at Vines (www.vinesbmw.com) who sent me two 
replacements for about $150. Result: all voodoo gone, situation normal.

In my case, they had gotten wet from the previous owner leaving the 
rear window down during a storm.

Drew

------------------------------