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Volume of my stereo went to maximum.

The stereo of my BMW 530i, 2003 went to maximum volume out of nothing. While driving it just went to max and there is no way to lower the volume. Any idea of what went wrong?
I lowered the bass and balanced everything to right and front seakers to avoid damage, there is no way to bring volume down using the radio of controls on stearing wheel.

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Before you do damage the speakers, locate & remove the fuse/s for the radio. This will at least disable the unit until the problem can be isolated.

Does the 530's owners manual have any info regarding resetting the radio? The unit maybe stuck in a loop or is processing an error & won't respond to external commands. Today's in-dash units are microprocessor controlled & occasionally need to be rebooted, like a windows based PC. Removing the the fuse/s may accomplish this. Wait for about an hour, re-insert the fuse/s & see if the problem is resolved.

If not, have you checked with BMW? There may be a service bulletin covering the wiring in the steering column that might be at fault. Good luck.

Posted on Feb 27, 2008

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