2004 Mercedes C-Class Owner's Manual - Page 82

Controls in detail Locking and unlocking Locking and unlocking In the "Controls in detail" section you will find detailed information on how to operate the equipment installed on your vehicle. If you are already familiar with the basic functions of your vehicle, this section will be of particular interest to you. To quickly familiarize yourself with the basic functions of the vehicle, refer to the "Getting started" section of this manual. The corresponding page numbers are given at the beginning of each segment. SmartKey Your vehicle comes supplied with two SmartKeys, each with remote control and a removable mechanical key. The locking tabs for the mechanical key portion of the two SmartKeys are a different color to help distinguish each SmartKey unit. The SmartKey provides an extended operating range. To prevent theft, however, it is advisable to only unlock the vehicle when you are in close proximity to it. The SmartKey centrally locks and unlocks: the doors the trunk the fuel filler flap SmartKey with remote control 1 ‹ Lock button 2 Š Opening button for the trunk lid 3 Mechanical key locking tab 4 Œ Unlock button 5 Battery check lamp 6  Panic button* ( page 71). i You can also open and close the power windows ( page 202) and sliding/pop-up roof* ( page 204) from outside using the SmartKey. i Canada only: Only vehicles equipped with an anti-theft alarm system* have SmartKeys with integrated panic button* 6. 82