I have a KE-83 in my 6/1990 535i. I disconnected the battery today. Upon re-connection the radio asked for the code. Same code I've used ten or so times, I have it written down on a paper in my glove box and on the side of the radio. The radio denied the code no matter how many times I've tried. I even disconnected it's power and reconnected it and it still won't take the code. I really don't understand.
Last edited by Spaceturtle917; 07-22-2018 at 08:37 PM.
Moderator and Owner of the Subreddit r/E34
I have figured it out after reading the manual (who would have thought right). Anyways, the manual says that after 3 failed attempts of entering the code, any code will be denied until the radio has been on for an hour. Left the key in the ignition for an hour after work and viola.
Moderator and Owner of the Subreddit r/E34
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