Mercedes-Benz C-Class 2014 Owner's Manual page 99

Doors
96
Problem
The engine cannot be
started using the key.
The engine cannot be
started using the Start/
Stop button. The key is
in the vehicle.
You have lost a key.
You have lost the emer-
gency key element.
Doors
Important safety notes
United Kingdom only:
G WARNING
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.
Possible causes/consequences and M M Solutions
The on-board voltage is too low.
Switch off non-essential consumers, e.g. seat heating or interior
X
lighting, and try to start the engine again.
If this does not work:
Check the starter battery and charge it if necessary
X
( page 416).
Y
or
Jump-start the vehicle (
X
or
Consult a qualified specialist workshop.
X
The vehicle is locked.
Unlock the vehicle and try to start the vehicle again.
X
The key battery is discharged or nearly discharged.
Check the key battery (
X
( page 94).
Y
If this does not work:
Start your vehicle with the key in the ignition lock.
X
There is interference from a powerful source of radio waves.
Start your vehicle with the key in the ignition lock.
X
Have the key deactivated at a qualified specialist workshop.
X
Report the loss immediately to the vehicle insurers.
X
If necessary, have the locks changed as well.
X
Report the loss immediately to the vehicle insurers.
X
If necessary, have the locks changed as well.
X
page 418).
Y
page 94) and replace it if necessary
Y
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.
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 ( page 86).
Y