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Old 06-01-2007, 07:11 PM
bimmernav bimmernav is offline
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Location: Austin, Tx
 
Join Date: May 2007
Posts: 48
Mein Auto: BMW
This issue is a result of your battery being low voltage. A low voltage on your battery although it will start just fine will cause these issues. Look at the magic eye on your battery. I am sure it will be black instead of green.

You can test the battery by following the BMW process of removing the surface charge. 5 minutes with the high beams on and the car off then test the voltage.

Here is the official training docs from BMW AG to BMW dealers explaining this process. Replacing your battery should fix your issue of the radio turning off after 2 minutes.

BMW Battery Training Doc

Martin
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