Hi, do you have the security code for this stereo? Did this happen after any car repairs?
This is what we need to do, to get it out of phone mode we need to try and reset the stereo by removing the negative battery cable for 30 seconds...but then it WILL ask you for a CODE, if you don't have it the stereo will be useless. Try calling the local BMW dealer and give them your VIN number, if they feel helpful they'll give you the correct code. Otherwise we'll need to remove the stereo grab the serial number and see if they'll give you the code than.
No problem, let me know if you run into trouble.
Sounds like the stereo may need to be replaced, they had various other common problems...but not this in particular...see if you can get the stereo to enter "service mode" and see if that tricks it into operating again. Use one of the procedures below.
Refer to SI B65 05 99 for information on how to enter the Service Mode on vehicles built prior to 09/2001.
When selecting the GAL level, use station presets # XXXXX to select level.
To turn off/on the RDS function on this radio, push the "INFO" button and select RDS off/on.
MOST bus radio
SERVICE MODE FUNCTIONS
Serial Number: Displays the radio serial number.
Software Version: Displays the radio software version (Calendar week/Year/Version). GAL: Speed sensitive volume control.
The speed sensitive volume control can be adjusted from level 1-6 using the 6 preset audio buttons. Radio volume increases more at level 6 and less at level 1 (road speed dependent).
Vehicles equipped with DSP do not use this feature.
Field Strength & Quality (F/Q): The station currently displayed can be assessed for field strength and quality.
An "F" number (i.e. 1-15) is used to indicate the strength of the signal being received by the radio. A high "F" number indicates a strong signal.
A "Q" number (i.e. 1-15) is used to determine the quality of the radio station broadcast including both the audio and RDS signal if applicable.
DSP: Digital Sound Processor
This function provides information about whether or not the vehicle is fitted with DSP. (1=Yes, 0=NO)
TP Volume: Traffic Patrol
Provides adjustment for traffic report minimum value. On some vehicles this setting can affect the NAV volume.
Refer to Service Bulletin B84 02 03.
AF: Alternative frequency tracking setting. Not used in US.
Area: Used to select the appropriate market setting (USA, Canada, Europe, Japan or Oceania).
Index: Displays the revision index.
It isn't worth having it repaired, at the dealer they'll remove the stereo and send it out for repair which will not only take time, but it almost always cost the same as a new stereo when they're done...a new stereo (dependant on which model it is) can be around $600. I would get a good used stereo from eBay, or a local BMW salvage yard, they're usually 1/3 of the cost and have nothing wrong with them.