Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Radio: Activate anti-theft coding by entering security code
Radio units are shipped with a fixed code. Fixed code means that every radio unit with anti-theft coding has been programmed with its own code. This code is not active from the factory. To increase anti-theft protection, there is no longer a radio card in the radio and navigation system owners manual. The entry of the radio code is no longer described in the owners manual.
The Anti-theft coding on a unit that is ready to play is activated by entering the fixed code.
On chorus II+, concert II+ and symphony II+ radio systems, enter the radio code as follows
- Switch on radio. "Code 1000" appears in the display.
- Press upper left control button "X___" -arrow- until first digit of radio code appears in display.
- Enter remaining three radio code digits with other three control buttons
- Press "ENTER" control button. The radio is coded.
- Dispose of sticker with radio code.
If the radio code is entered incorrectly two times and "Code Safe 2" appeared in the display, use the following procedure
Leave radio switched on approx. 60 minutes. After 60 min., "Code Safe / Code 1000" appears in the display and the radio is switched off
Enter radio code again.
On navigation system BNS 5.0, enter radio code as follows
- Switch on navigation system
- Enter PIN using Speller
- Confirm entry with "OK"
- Dispose of sticker with radio code.
- Please inform the customer that he can only learn the anti-theft radio code from the service advisor
- That way, thieves really cannot use the radio!
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.