2010 Mercedes S-Class Owner's Manual - Page 501

Unlocking/locking manually Problem Possible causes/consequences and M Solutions 499 42 The system is malfunctioning. The front passenger X Make sure there is nothing between seat cushion and child seat front air bag off and check installation of the child seat. indicator lamp does not X Make sure no objects applying supplemental weight onto the illuminate and/or does seat are present. not remain illuminated X If the front passenger front air bag off indicator lamp remains with the weight of a out, have the system checked as soon as possible at an typical 12-month-old authorized Mercedes-Benz Center. Do not transport a child on child in a standard child the front passenger seat until the system has been repaired. restraint or less on the X Read and observe messages in the multifunction display and front passenger seat. follow corrective steps (Y page 452). If the 42 indicator lamp does not illuminate or remains out with the weight of a typical 12-month-old child in a standard child restraint or less on the front passenger seat, do not transport a child on the front passenger seat until the system has been repaired. Unlocking/locking manually Unlocking the vehicle If you cannot unlock the vehicle with the SmartKey or with KEYLESS-GO, unlock the driver's door and the trunk using the mechanical key. The anti-theft alarm system will trigger when you Runlock SmartKey the driver's door or the trunk with the mechanical key and the driver's door or the trunk SmartKey with KEYLESS-GO X Ropen To cancel the alarm, insert the SmartKey into the starter switch. Move locking tab : in the direction of arrow. X Slide mechanical key ; out of the housing. Z Practical hints G Warning! Removing the mechanical key