2012-2017 Mercedes A Class 4 Door Opening and closing -> Doors User Manual
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Opening and closing -> Doors for Your Mercedes A Class 4 Door Third Generation (2012-2017)

Doors  
89  
Problem  
Possible causes/consequences and M Solutions  
X
You have lost a key.  
Have the key deactivated at a qualified specialist workshop.  
Report the loss immediately to the vehicle insurers.  
If necessary, have the locks changed as well.  
X
X
X
X
You have lost the emer-  
gency key element.  
Report the loss immediately to the vehicle insurers.  
If necessary, have the locks changed as well.  
Doors  
Therefore, do not leave any people unsuper-  
vised in the vehicle, particularly children, eld-  
erly people or people in need of special assis-  
tance. Do not activate the double lock when  
people are in the vehicle.  
Important safety notes  
WARNING  
G
If children are left unsupervised in the vehicle,  
they could:  
If the vehicle has been locked with the key,  
the double lock function is activated as stand-  
ard. It is then not possible to open the doors  
from inside the vehicle. You can deactivate  
the double lock function by deactivating the  
interior motion sensor (Y page 80). The doors  
can then be opened from the inside after the  
vehicle has been locked from the outside. You  
can open the rear doors from inside the vehi-  
cle if they are not secured by the child-proof  
locks (Y page 68). The anti-theft alarm system  
is triggered if the door is opened from the  
inside. Switch off the alarm (Y page 78).  
R
open doors, thereby endangering other per-  
sons or road users  
get out and be struck by oncoming traffic  
operate vehicle equipment and become  
R
R
trapped, for example  
In addition, the children could also set the  
vehicle in motion, for example, if they:  
R
release the parking brake  
shift the automatic transmission out of park  
position P or shift manual transmission into  
neutral  
R
R
start the engine  
There is a risk of an accident and injury.  
Unlocking and opening the doors  
from the inside  
When leaving the vehicle, always take the key  
with you and lock the vehicle. Never leave  
children and animals unattended in the vehi-  
cle. Keep the keys out of the reach of children.  
Stow luggage or loads preferably in the lug-  
gage compartment. Observe the loading  
guidelines (Y page 306).  
United Kingdom only:  
WARNING  
G
When the double locks are activated, the  
doors can no longer be opened from the  
inside. People in the vehicle can no longer get  
out, e.g. in hazardous situations. There is a  
risk of injury.  
X
Pull door handle ;.  
If the door is locked, locking knob : pops  
up. The door is unlocked and opens.  
Z
Doors  
90  
For all countries except the United King-  
dom:  
You can open a door from inside the vehicle  
even if it has been locked. You can only open  
the rear doors from inside the vehicle if they  
are not secured by the child-proof locks  
(Y page 68).  
If the vehicle has previously been locked with  
the key from the outside, opening a door from  
the inside will trigger the anti-theft alarm sys-  
tem. Switch off the alarm (Y page 78).  
X
X
To unlock: press button :.  
To lock: press button ;.  
If all the doors and the tailgate are closed,  
United Kingdom only:  
WARNING  
G
When the double locks are activated, the  
doors can no longer be opened from the  
inside. People in the vehicle can no longer get  
out, e.g. in hazardous situations. There is a  
risk of injury.  
Therefore, do not leave any people unsuper-  
vised in the vehicle, particularly children, eld-  
erly people or people in need of special assis-  
tance. Do not activate the double lock when  
people are in the vehicle.  
the vehicle locks.  
This does not lock or unlock the fuel filler flap.  
You cannot unlock the vehicle centrally from  
the inside if the vehicle has been locked with  
the key or KEYLESS-GO.  
For all countries except the United King-  
dom:  
You can open a door from inside the vehicle  
even if it has been locked.  
If the vehicle has previously been locked with  
the key from the outside, opening a door from  
the inside will trigger the anti-theft alarm sys-  
tem. Switch off the alarm (Y page 78).  
You can open the rear doors from inside the  
vehicle if they are not secured by the child-  
proof locks (Y page 68).  
When a locked door is opened from inside the  
vehicle, the previous unlocking process will  
be observed if the vehicle has been:  
If the vehicle has been locked from the out-  
side, the double lock function is activated as  
standard. It is then not possible to open the  
doors from inside the vehicle. You can deac-  
tivate the double lock function by deactivat-  
ing the interior motion sensor (Y page 80).  
The doors can then be opened from the inside  
after the vehicle has been locked from the  
outside. You can open the rear doors from  
inside the vehicle if they are not secured by  
the child-proof locks (Y page 68). The anti-  
theft alarm system is triggered if the door is  
opened from the inside. Switch off the alarm  
(Y page 78).  
R
locked with the locking button for the cen-  
tral locking or  
R
locked automatically  
The vehicle will be fully unlocked if it had pre-  
viously been fully unlocked. Only the door  
which has been opened from the inside is  
unlocked if only the driver's door had been  
previously unlocked.  
Centrally locking and unlocking the  
vehicle from the inside  
Only for the United Kingdom: if the vehicle  
has been locked with the key, the double lock  
functionisactivatedasstandard. Itisthennot  
possible to open the doors from inside the  
You can centrally lock or unlock the vehicle  
from the inside. This can be useful if you wish  
to lock the vehicle before pulling away, for  
example.  
Doors  
91  
vehicle. You can deactivate the double lock  
function by deactivating the interior motion  
sensor (Y page 80). The doors can then be  
opened from the inside after the vehicle has  
been locked from the outside. You can open  
the rear doors from inside the vehicle if they  
are not secured by the child-proof locks  
(Y page 68). The anti-theft alarm system is  
triggered if the door is opened from the  
inside. Switch off the alarm (Y page 78).  
The vehicle is locked automatically when the  
ignition is switched on and the wheels are  
turning.  
You could therefore be locked out if:  
R
the vehicle is being pushed  
R
the vehicle is being towed  
R
the vehicle is being tested on a dynamom-  
eter  
You can also activate and deactivate the auto-  
matic locking function using the on-board  
computer (Y page 251).  
When a locked door is opened from inside the  
vehicle, the previous unlocking process will  
be observed if the vehicle has been:  
R
locked with the locking button for the cen-  
tral locking or  
locked automatically  
Unlocking the driver's door (emer-  
gency key element)  
R
If the vehicle can no longer be unlocked with  
the key or KEYLESS-GO, use the emergency  
key element.  
If you use the emergency key element to  
unlock and open the driver's door, the anti-  
theft alarm system will be triggered  
(Y page 78).  
The vehicle will be fully unlocked if it had pre-  
viously been fully unlocked. Only the door  
which has been opened from the inside is  
unlocked if only the driver's door had been  
previously unlocked.  
Automatic locking feature  
X
Take the emergency key element out of the  
key (Y page 85).  
X
Insert the emergency key element into the  
lock of the driver's door as far as it will go.  
X
To deactivate: press and hold button :  
for approximately five seconds until a tone  
sounds.  
X
To activate: press and hold button ; for  
approximately five seconds until a tone  
sounds.  
X
Turn the emergency key element anti-  
clockwise as far as it will go to position 1.  
If you press one of the two buttons and do not  
hear a tone, the relevant setting has already  
been selected.  
Z

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