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How to enter a Mercedes Audio 10 CD radio code
The Mercedes Audio 10 CD: a knob at each side and no number buttons. On most the serial starts AL2910 or AL2199.Drawn from Mercedes' manual.
Type it and every step uses your own digits. It stays on this page.
Switch the radio on. The display shows CODE.
1 of 7
Every step
Checked against Mercedes' operating instructions for the Audio 10 (German edition).
If it locks
WAIT
Three wrong codes bring up WAIT and lock the radio for about ten minutes. The wait only runs with the radio switched on. What each lockout screen means
Your code has four digits?
Mercedes gives the Audio 10 CD a five digit code. A four digit code will not go in, so do not try it. See why a code can be wrong
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