Question about BMW Car Audio & Video
Procedure may vary, as series 3 from those years were sold mounting different types of Blaupunkt, Alpine and Philips factory stereo.
When you see CODE on display use the arrow buttons or volume control knob and balance fader, or numeric numbers to advance code numbers, when 4 numbers are set it will unlock by itself.
If you do something wrong, disconnect battery ground cable for two minutes and restart.
If you enter wrong code for three consecutive times the radio will lock up, some 80/90s radio cannot be unlocked after entering wrong code three times (that is the anti theft feature).
Posted on Aug 30, 2010
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Posted on Jan 02, 2017
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