![](https://www.mercedesman.ru/img/c-class/0815.jpg)
1 - Main key; 2 - Unlock button; 3 - Key functions; 4 - Battery charge control
With the radio remote control, the car can be unlocked from a great distance, even out of sight.
To prevent unauthorized persons from entering the vehicle, use the radio remote control only from a short distance.
The vehicle equipment includes two main keys with a remote control device. For a better distinction of the release button (2) have different colors.
Note. Do not expose keys to high electromagnetic radiation. Possible malfunctions!
Unlocking the car
Can be switched between settings «Unlocking the driver's door» And «Full unlock».
Installation «Full unlock»
Press the button once, all doors, the fuel tank hatch and the tailgate are unlocked.
Installation «Unlocking the driver's door»
Press the
![](https://www.mercedesman.ru/img/c-class/0816.jpg)
Press the
![](https://www.mercedesman.ru/img/c-class/0817.jpg)
Unlocking the vehicle and deactivating the anti-theft alarm system (EDW) confirmed by a one-time flashing of the direction indicator lights.
If neither the doors nor the boot lid are opened after unlocking the vehicle, the vehicle will automatically lock after approximately 40 seconds.
Car locking
Press the
![](https://www.mercedesman.ru/img/c-class/0818.jpg)
With the doors and tailgate closed, activation of the vehicle authorization check system or the availability of the anti-theft alarm (EDW) after locking, they are confirmed by flashing the turn signal lights three times.
Battery charge control
Each time the key is used, the control LED of the battery charge will briefly light up.
If the control LED does not light up, replace the batteries immediately.
Setting the vehicle unlocking functions
Simultaneously press the
![](https://www.mercedesman.ru/img/c-class/0819.jpg)
![](https://www.mercedesman.ru/img/c-class/0820.jpg)
Control LED (4) lights up twice.
Switching between settings «Unlocking the driver's door» And «Full unlock».
Replacing the main key batteries
Note. Replace batteries in pairs.
![](https://www.mercedesman.ru/img/c-class/0821.jpg)
Do not dispose of discharged batteries with household waste.
Remove the emergency key.
Push the key into the hole (1), then lift the battery compartment slightly in the direction of the arrow (2) and remove in the direction of the arrow (3).
![](https://www.mercedesman.ru/img/c-class/0822.jpg)
Insert batteries (4) under contact spring (5), using a lint-free cloth. Plus sign up!
Slide the battery compartment into the key housing until it locks.
Automatic door locking while driving
At speeds above 15 km / h, the single lock of the car is locked.
When one of the front doors is opened from the inside, all the locks of the car are unlocked, provided that the last unlocking of a single car lock was performed by a remote control device.
Enabling and disabling the function of automatic locking of a single vehicle lock was carried out by a remote control device.
Switching the automatic door locking function on and off can be done in the menu «VEHICLE» (AUTOMOBILE) systems «Individual installation», in the installation menu «AUTOMATIC DOOR LOCK» (AUTOMATIC DOOR LOCKING). (Refer to Part «Individual installation» Section Multifunction steering wheel, universal display).
Automatic unlocking of doors in case of an accident
Doors are unlocked, starting with a collision of a precisely defined force.
Single lock switch
![](https://www.mercedesman.ru/img/c-class/0823.jpg)
The single lock switch is located on the center console.
Push switch:
- 1 - Locking
- 2 - Unlock
With a single lock switch, the car can be unlocked or locked from the inside. Locking can only be done if the front doors are closed.
If locking was done with a key, unlocking with a switch is not possible.
Opening or closing the side windows and panoramic sunroof
(summer opening function / comfort closing)
Opening function in summer: the panorama sliding roof panel is opened and the side windows are lowered.
Convenience closing: closes the panoramic sunroof and raises the side windows.
For safety reasons, the summer opening/comfort closing function can only be activated from a close distance via the infrared function of the remote control. Therefore, point the tip of the key at the driver's door handle.
Summer opening function:
Unlock the vehicle, keep the button pressed until the side windows and panoramic sliding roof panel reach the desired position.
Interrupting the opening process: Release the
![](https://www.mercedesman.ru/img/c-class/0824.jpg)
Comfort closing: Lock the car, keep the
![](https://www.mercedesman.ru/img/c-class/0825.jpg)
When leaving the vehicle, check that all side windows are up and that the panoramic sunroof is closed.
Door opening
![](https://www.mercedesman.ru/img/c-class/0826.jpg)
1. Opening the door from the outside
The door can only be opened from the outside if it has been previously unlocked.
![](https://www.mercedesman.ru/img/c-class/0827.jpg)
2. Opening the door from the inside
The door can also be opened from the inside when the car is locked. When the driver's or front passenger's door is opened, both doors are unlocked.
Door unlocking is confirmed by pulling out the blocking button (3).
Emergency key
![](https://www.mercedesman.ru/img/c-class/0828.jpg)
1. Unlock button
2. Emergency key
emergency key (2) the driver's door can be unlocked and locked (emergency door opening) and separately locked driver's door (emergency door opening) and separately locked or released the boot lid.
Pulling out the emergency key from the main key: Unlock button (1) slide in the direction of the arrow and pull out the emergency key (2).
Retracting the emergency key on the main key: Push in the emergency key (2) before fixation.
Emergency unlocking of the driver's door
If the car is not unlocked by the key's remote control, unlock the driver's door with the emergency key.
Notes for models equipped with an anti-theft alarm:
The anti-theft alarm is triggered when the door is opened with the emergency key. The alarm can only be turned off by inserting the key into the ignition switch or by pressing the
![](https://www.mercedesman.ru/img/c-class/0829.jpg)
![](https://www.mercedesman.ru/img/c-class/0830.jpg)
Emergency unlocking of the tailgate
![](https://www.mercedesman.ru/img/c-class/0831.jpg)
The lock cylinder is located in the recess for the rear license plate.
If the tailgate cannot be opened in the event of a fault, use the emergency key to release the tailgate.
Turn the emergency key to position (1) and pull the handle.
Note for models equipped with an anti-theft alarm:
The anti-theft alarm is only activated when the tailgate is opened with the emergency key. The alarm can only be turned off by inserting into the ignition switch or pressing the
![](https://www.mercedesman.ru/img/c-class/0832.jpg)
![](https://www.mercedesman.ru/img/c-class/0833.jpg)
Opening the trunk lid
![](https://www.mercedesman.ru/img/c-class/0834.jpg)
The handle is located in the recess for the rear number plate.
The trunk lid can be opened manually if the car's single lock has been unlocked before.
Pull the handle to open.
Closing the tailgate
![](https://www.mercedesman.ru/img/c-class/0835.jpg)
Lower the tailgate by pulling it down on the notch (1), and close by pressing at the top.
Emergency unlocking of the fuel filler cap
![](https://www.mercedesman.ru/img/c-class/0836.jpg)
Turn the latch of the right side trim and move the side trim to the side.
Pull the release handle (arrow) and at the same time open the fuel tank door from the outside.
Lost key or emergency key
Entrust one of the service stations «Mercedes-Benz» blocking the key and immediately notify the insurance company of the loss of the key.
If the emergency key is lost, the mechanical elements of the locks must be replaced.
A new or emergency key can only be purchased at the service station «Mercedes-Benz».
General notes on the lock system
If the vehicle cannot be unlocked or locked:
- Point the tip of the master key at the driver's door handle.
- Check the battery charge of the main key (materials at the beginning of the Section).
- Unlock the car with the emergency key. Insert the key into the ignition lock and wait until the key in the ignition lock cannot be turned.