2009 Mercedes R-Class Owner's Manual - Page 355

Practical hints Unlocking/locking manually Unlocking/locking manually Unlocking the vehicle If you cannot unlock the vehicle with the SmartKey or with KEYLESS-GO, unlock the driver's door using the mechanical key. X X Move locking tab 1 in direction of arrow. Slide mechanical key 2 out of the housing. Locking the vehicle If you cannot lock the vehicle with the SmartKey or with KEYLESS-GO, lock it as follows: X Close the front passenger door, the right rear door and the tailgate. X X Unlocking the driver's door i Unlocking the vehicle with the mechanical key and opening the driver's door will trigger the anti-theft alarm system. To cancel the alarm, insert the SmartKey in the starter switch. Removing the mechanical key $ Unlocking 2 Mechanical key X X X Open the driver's door and the rear left door. Press the central locking switch (Y page 89). The locking knobs of the front passenger door and the rear doors move down. If the vehicle battery is disconnected or drained: Press down the locking knobs of the front passenger door and the rear doors manually. Exit the vehicle. Close the driver's door. Enter the vehicle through the rear left door. Press down the locking knob of the driver's door. X Insert mechanical key 2 into the driver's door lock until it stops. Turn mechanical key 2 counterclockwise to position $ and hold it there. Pull the door handle until the locking knob moves up. The driver's door is unlocked. Pull the door handle once more to open the driver's door. X X X X 1 Mechanical key locking tab 2 Mechanical key X ! To prevent inadvertent lockout, make sure to have the SmartKey with you before proceeding with the next step. The next step will lock the vehicle. Z 353