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

It sounds to me like your battery is on it's death bed.  If you have a dead 
or dying cell, you won't have 12 volts, and strange things can happen.  
Check to see that all cells have the proper amount of liquid in them, and 
measure the specific gravity to see which one(s) don't have a full charge.

How old is the battery?

If you have a voltmeter, measure the voltage when the ignition is turned 
off.  The battery should be at slightly above 12 volts.  Anything less is a 
bad thing.  Also, check the voltage when the engine is running at a faster 
than idle (1200rpm) speed, and with accessories turned on.  Voltage should 
be 14.5-14.8 volts.  If not, your voltage regulator or charging circuit is 
bad, and isn't properly charging the battery.


Ron Buchalski
BMWCCA #76387
1995 E36 M3
1993 E34 525iT
1999 Mazda Miata


>
>Date: Wed, 26 Mar 2003 18:36:27 +1200
>From: "Chris Northover" <[email protected]>
>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!
>
>Any ideas?
>
>BTW thanks to those who gave advice on my shock absorber question.  The
>strut inserts went in very easily and the car now drives like a dream...
>
>Chris Northover
>
>[email protected]



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