2008 Mercedes CL-Class Owner's Manual - Page 144

Control systems COMAND telephone* Entering the PIN2 Entering the PUK/PUK2 Entering the unlock code Many mobile phones can be protected from unauthorized use with an unlock code (see mobile phone operating instructions). If you wish to use the phone functions when the unlock code is active, a screen appears requesting that you enter the unlock code. You cannot use the phone functions (except "911" emergency call) until you have entered the unlock code. Proceed in the same way as entering the PIN ( page 142). i The PIN2 entry applies only to GSM mobile phones. i The PUK/PUK2 entry (Personal Unblocking Key) applies only to GSM mobile phones. If you enter the PIN or PIN2 incorrectly three times, the SIM card will be locked. A corresponding message appears in the display. It is necessary to enter the PUK/PUK2 to unlock it. The PUK and/or PUK2 are provided by your telephone service provider. Enter PUK/PUK2 digits into mobile phone. The phone may request the PIN2 in order to use certain functions. A corresponding message appears in the display. Enter PIN2 digits into mobile phone. 143