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Home >> Mercedes Benz >> 2001 >> ML55 >> Repair and Diagnosis >> General Information >> Computer Relearn Procedures >> MERCEDES-BENZ >> Enabling Code Function For Radio >> Radio With 4-Digit Fixed Code (CL, S & SL Class)
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Radio With 4-Digit Fixed Code (CL, S & SL Class)

Turn ignition on. Turn radio on. CODE will be displayed. Enter customer supplied code number using station number keys on radio. Confirm correct code by pressing SEEK button. Unit will turn on if correct code is entered.

If wrong code is entered 3 times, code entry is denied for 15 minutes. If wrong code is entered 9 times, code entry is denied for 24 hours. Radio and ignition switch must remain on during the waiting period.