2011 Mercedes R-Class Owner's Manual - Page 79

SmartKey If you pull on the handle of the tailgate, only the cargo area of the vehicle is unlocked. 77 Mechanical key General notes If you use the mechanical key to unlock and open the driver's door, the anti-theft alarm system will be triggered (Y page 71). There are several ways to turn off the alarm: X Press the % or & button on the SmartKey. or X Insert the SmartKey into the ignition lock. or X Press the Start/Stop button in the ignition lock. The SmartKey must be in the vehicle. or X Lock or unlock the vehicle using KEYLESSGO. The SmartKey must be outside the vehicle. i If the vehicle has been parked for a long time, you must pull the door handle to activate the KEYLESS-GO functions. Changing the settings of the locking system You can change the settings of the locking system in such a way that only the driver's door and the fuel filler flap are unlocked. This is useful if you frequently travel on your own. X To change the setting: press the % and & buttons simultaneously for approximately six seconds until the battery check lamp flashes twice. The SmartKey now functions as follows: X To unlock the driver's door: press the % button once. X To unlock centrally: press the % button twice. X To lock centrally: press the & button. The KEYLESS-GO function is changed as follows: X Removing the mechanical key To unlock the driver's door: touch the inner surface of the door handle on the driver's door. X To unlock centrally: touch the inner surface of the door handle on the frontpassenger door or the rear door. X To lock centrally: press locking button : on one of the door handles. X Push release catch : in the direction of the arrow and at the same time remove mechanical key ; from the SmartKey. Restoring the factory settings X SmartKey battery Important safety guidelines It is advisable to have batteries replaced at a qualified specialist workshop, e.g. at an authorized Mercedes-Benz Center. Press the % and & buttons simultaneously for approximately six seconds until the battery check lamp flashes twice. Z Opening and closing