
Depending on the settings made for central locking in the Infotainment system, it may be the case 
that all of the doors and the boot lid are unlocked only when the  button has been pressed twice. 
Central locking button 
 
Fig. 54 In the driver door: central locking button. 
 
Fig. 55 In the driver door: release for the boot lid. 
First read and observe the introductoryinformation and safety warnings
Key to Fig. 54and Fig. 55 
Unlock the vehicle. 
Lock the vehicle. 
Unlock the boot lid. 
If the button in the driver door is pressed, only the boot lid opens. All doors remain locked. 
The central locking button functions with the ignition switched on or off only when all doors are 
closed. 
If the vehicle has been locked from outside with the vehicle key, the central locking buttons do not 
work. 
Please note the following when using the central locking button to lock the vehicle from the inside: 
The indicator lamp  in the button lights up yellow when all doors are closed and locked. 
The anti-theft alarm will not be activated Anti-theft alarm  

 
SAFELOCK deactivates the door release levers if the vehicle has been locked. This makes it more 
difficult to break into the vehicle. The doors can no longer be opened from the inside  
Press the  button on the vehicle key once. 
Press the button on the vehicle key twice in quick succession. 
Vehicles with the Keyless Access locking and starting system: touch the sensor on the outside of the 
door handle twiceUnlocking or locking the vehicle with Keyless Access 
OR: press the central locking button in the driver door once Central locking button 
There may be an indication of the activated SAFELOCK in the display of the instrument cluster 
(SAFELOCK). 
Deactivating SAFELOCK 
Switch on the ignition. 
OR: deactivate interior monitoring and the anti-tow alarm Temporarily switching off the interior 
monitoring system and anti-tow alarm 
Before locking the vehicle, temporarily deactivate the interior monitoring and the anti-tow alarm in 
the Vehicle Settings menu in the Infotainment system Infotainment sy
The following applies when SAFELOCK is deactivated: 
The interior monitoring and the anti-tow alarm are activated and deactivated in the Vehicle settings 
menu in the Infotainment system Infotainment system controls and display
 
WARNING 
Careless or unsupervised use of SAFELOCK can cause serious injuries. 
Never leave other persons in the vehicle if the vehicle has been locked using the vehicle key. The 
doors can no longer be opened from the inside once SAFELOCK is activated. 
 
If you unlock the driver door mechanically using the vehicle key, only the driver door is unlocked, 
and not the whole vehicle. The doors are released (but not unlocked) and the central locking button 
is activated only when the ignition is switched on. 
Troubleshooting 
First read and observe the introductoryinformation and safety warnings
Indicator lamp lights up continuously 
The red LED in the vehicle door flashes at short intervals and then lights up continuously.  

 button again moves the boot lid back into the starting position. 
Signal tones 
If the boot lid is opened or closed from the vehicle interior or using the vehicle key, signal tones will 
sound. 
Changing and storing the opening angle 
If the area behind or above the vehicle is smaller than the path of the boot lid, the opening angle of 
the boot lid can be changed. 
Stop the opening procedure at the desired open position (at least half open). 
In the boot lid, press and hold the  button Fig. 63until the hazard warning lights flash. 
The changed opening angle will be stored. 
The hazard warning lights flash and an acoustic signal sounds to confirm that the changed opening 
angle has been stored. 
Resetting and storing the opening angle 
The opening angle must be reset and stored again in order for the boot lid to open fully again. 
Push the opened boot lid up as far as it will go by hand. You will need to use increased force for this. 
In the boot lid, press and hold the  button Fig. 63until the hazard warning lights flash. 
The opening angle will be reset. 
The hazard warning lights flash and an acoustic signal sounds to confirm that the opening angle has 
been reset. 
 
NOTICE 
Before opening or closing the boot lid, please check that there is enough space to open and close it, 
for example when in a garage. 
Unlocking the boot lid manually 
  

 
The rear centre armrest must always be folded up while the vehicle is in motion in order to reduce 
the risk of injury. 
The middle seat on the rear bench seat must never be used when the centre armrest is folded down 
neither by adults nor children. An incorrect sitting position can cause severe injuries. 
Lights 
Turn signals 
Switching turn signals on and off 
 
Fig. 78 On the left of the steering column: turn signal and main beam lever. 
Switch on the ignition. 
Move the turn signal and main beam lever Fig. 78from the centre position to the following 
position: 
 
Right turn signal  . 
 
Left turn signal  . 
Return the turn signal and main beam lever to the basic position in order to switch off the turn 
signal. 
Go to a qualified workshop if the acoustic signal does not sound when a turn signal is switched on 
and have the vehicle checked. 
Convenience turn signal 
To operate the convenience turn signal, push the turn signal and main beam lever up or down to the 
pressure point and then release the lever. The turn signal flashes three times. 
To cancel the convenience turn signal, immediately move the lever in the opposite direction up to 
the pressure point and then release it. 
The convenience turn signal can be activated and deactivated in the Infotainment system in 
the Vehicle settings menu Infotainment system controls and displays  

WARNING 
Incorrect use of turn signals, a failure to use turn signals, or forgetting to switch off a turn signal can 
confuse other road users. This could lead to accidents and serious injuries. 
Always activate the turn signal in good time when changing lanes and performing overtaking or 
turning manoeuvres. 
Always switch off the turn signal once the lane change or overtaking or turning manoeuvre has been 
completed. 
 
The hazard warning lights also work when the ignition is switched off In an emergency 
 
Some settings can be stored in the user accounts of the personalisation function and therefore 
change when the user account changes Personalisation 
Vehicle lighting 
Switching lights on and off 
 
Fig. 79 Next to the steering wheel: light switch (one variant). 
Switching lights on 
Switch on the ignition. 
Turn the light switch to the appropriate position: 
Automatic headlights: dipped beam is switched on or off depending on the brightness level 
and the weather Automatic headlights The side lights and daytime running 
lights are switched on. The symbol in the light switch lights up green.The dipped beam headlights 
are switched on. 
Switching lights off 
Switch off the ignition.  

tion: 
The lights are switched off.Leaving Home function (orientation lighting) can be switched on 
Coming Home and Leaving Home function (orientation lighting)Side lights or continuous 
parking light on both sides of the vehicle switched on Switching the parking lights on and off
symbol in the light switch lights up green.Dipped beam is switched off the side lights will stay 
on as long as the vehicle key is in the ignition lock or, in vehicles with Keyless Access, the driver door 
is closed. 
Daytime running lights 
The daytime running lights (dependent on equipment level) can increase the visibility of your vehicle 
in traffic during the day. 
The daytime running lights are switched on every time the ignition is switched on when the light 
switch is in position  ,  or (when brightness is detected). 
The daytime running lights cannot be switched on or off manually. 
 
WARNING 
Accidents and serious injuries can occur if the road is not sufficiently illuminated and other road 
users have difficulty seeing the vehicle, or cannot see it at all. 
The light assist systems are designed only to provide support; the driver is responsible for the 
correct vehicle lights being switched on. 
Always switch on the dipped beam headlights if it is dark, raining or visibility is poor. 
 
WARNING 
The side lights or daytime running lights are not bright enough to illuminate the road ahead and to 
ensure that other road users are able to see you. 
Always switch on the dipped beam headlights if it is dark, raining or visibility is poor. 
The tail light clusters are not switched on with the daytime running lights. If the tail light clusters are 
not switched on, the vehicle may not be visible to other road users if it is dark, raining, or if visibility 
is poor. 
 
WARNING 
The automatic headlights ( ) switch dipped beam on and off only when there is a change in 
the level of brightness. 
Switch on dipped beam manually if required by the weather conditions, e.g. in fog. 
  

both sides of the vehicle switches on to 
provide better illumination of the surrounding area when manoeuvring. 
Switching the fog lights on and off 
Switching on the front fog lights : pull the light switch Fig. 79out to the first position. The 
indicator lamp  in the light switch lights up green. 
Switching on the rear fog light : pull the light switch all the way out. The indicator lamp  in the 
instrument cluster lights up yellow. 
To switch the fog lights off, press in the light switch or turn it to position . 
 
When the automatic headlights  are switched on and the front or rear fog lights are switched 
on, the dipped beam headlights will also be switched on irrespective of the current light conditions 
outside. 
 
In vehicles with a factory-fitted towing bracket: the vehicle's rear fog light is not switched on if a 
trailer with rear fog light is electrically connected to the vehicle Trailer towing 
Light functions 
Side lights 
If the side lights are switched on, both headlights light up with the side lights, parts of the tail 
light clusters, the number plate lighting and the buttons in the centre console and the dash panel. 
The daytime running lights also switch on when the ignition is switched on. 
If the vehicle is not locked from outside when the ignition is switched off, the continuous parking 
light on both sides of the vehicle switches on automatically after around 10 minutes to reduce 12-
volt vehicle battery discharge Switching the parking lights on and off 
Automatic headlights  
If the automatic headlights are switched on, the vehicle lighting and the instrument and 
switch lighting will switch on and off according to the light conditions. When the lights are switched 
on, the indicator lamp lights up yellow. 
The automatic headlights are merely an aid and will not always be able to detect all driving 
situations. 
In vehicles with a corresponding equipment level, the switch-on time of the automatic headlights 
can be adjusted in the Infotainment system in the Vehicle settings menu Infotainment system 
controls an
Cornering light 
A cornering light is switched on when turning slowly or travelling around very tight bends. 
Signal tones if lights are not switched off  

 and the driver door opened, acoustic 
warnings sound under the following conditions: 
If the parking light is switched on. 
If the side lights are switched on or the rear fog light is switched on . 
When the Coming Home function is switched on, no signal tone will be given as a reminder that a 
light is still switched on when leaving the vehicle. 
 
Some settings can be stored in the user accounts of the personalisation function and therefore 
change when the user account changes Personalisation 
Troubleshooting 
  Turn signal indicator lamp 
If a turn signal on the vehicle has failed, the indicator lamp will start flashing twice as fast. 
The indicator lamp flashes green. 
Check the lighting and change the appropriate bulb as required Changing bulbs 
If the problem persists, go to a qualified workshop. 
Does not apply in China and Japan: trailer turn signals indicator lamp 
The indicator lamp goes out if a trailer turn signal or all trailer lights stop working. 
The indicator lamp flashes green. 
Check the lighting and change the appropriate bulb as required Changing bulbs 
If the problem persists, go to a qualified workshop. 
Vehicle lighting not working 
Vehicle lighting has failed either completely or partially. 
The indicator lamp lights up yellow. 
Check the lighting and change the appropriate bulb as required Changing bulbs 
If the problem persists, go to a qualified workshop. 
Fault in rain/light sensor 
In the light switch position , the vehicle lighting is not switched on or off automatically. 
The indicator lamp lights up yellow. 
Switch the ignition off and on. 
If the problem persists, go to a qualified workshop.