2009 Mercedes E-Class Owner's Manual - Page 86

Controls in detail Locking and unlocking If the vehicle was previously centrally locked with the SmartKey or KEYLESS-GO, the tailgate will lock automatically when it is closed. To prevent a possible inadvertent lockout, the tailgate will open automatically if a SmartKey is recognized inside the vehicle or in the cargo compartment. Checking SmartKey batteries X Loss of the SmartKey If you lose your SmartKey or mechanical key, you should do the following: X Have the SmartKey deactivated by an authorized Mercedes-Benz Center. X Report the loss of the SmartKey or the mechanical key to your car insurance company immediately. X Have the mechanical lock replaced if necessary. Any authorized Mercedes-Benz Center will be glad to supply you with a replacement. Selective setting If you frequently travel alone, you may wish to reprogram the SmartKey so when you pull the driver's outside door handle, only the driver's door and the fuel filler flap unlock. X Switching on/off: Press and hold buttons k and j simultaneously for approximately 6 seconds until battery check lamp 4 (Y page 81) flashes twice. The SmartKey will then function as follows: X Unlocking driver's door and fuel filler flap: Pull the driver's outside door handle. X Global unlocking: Pull any outside door handle other than the driver's outside door handle. X Global locking: Press lock button 1 on an outside door handle. Press button j or k on the SmartKey. Battery check lamp 4 (Y page 81) comes on briefly to indicate that the SmartKey batteries are in order. If the battery check lamp does not come on briefly during check, the SmartKey batteries are discharged. X Replace the batteries (Y page 346). i You can obtain the required batteries at any authorized Mercedes-Benz Center. i If the batteries are checked within signal range of the vehicle, pressing button j or k will lock or unlock the vehicle accordingly. Opening the doors from the inside You can open a locked door from the inside. Open door only when conditions are safe to do so. 84