Mercedes-Benz C-Class Saloon, Owner'S Manual

Page: 79 / 568

Problem
Possible causes/consequences and M M Solutions
#
Check the battery using the battery check lamp and replace if necessary (
→
page 75).
#
Use the emergency key to lock or unlock (
→
page 75).
#
Have the key checked at a qualified specialist workshop.
You have lost a key.
#
Have the key deactivated at a qualified specialist workshop.
#
If necessary, have the mechanical lock changed as well.
Doors
Notes on the additional door lock
The additional door lock is only available for
vehicles for the United Kingdom.
&
WARNING Risk of injury to persons
inside the vehicle when the additional
door lock is activated
If the additional door lock is activated, the
doors can no longer be opened from the
inside.
If there are persons in the vehicle, they can
no longer leave the vehicle, e.g. in hazardous
situations.
#
Never leave persons unattended in the
vehicle, particularly children, elderly
persons or persons in need of help.
#
If there are persons in the vehicle, do
not activate the additional door lock.
The additional door lock is automatically activa‐
ted in the following situations:
R
The vehicle is locked using the key.
R
The vehicle is locked using KEYLESS-GO.
If the vehicle has been locked via Mercedes me
connect, the additional door lock is not activa‐
ted.
If the additional door lock is activated, the doors
cannot be opened from the inside.
% After locking you can issue a signal with the
horn.
You can prevent the additional door lock from
being activated by deactivating interior protec‐
tion before locking the vehicle (
→
page 99).
Unlocking/opening the doors from the inside
#
United Kingdom only: observe the notes on
the additional door lock (
→
page 77).
Opening and closing 77