Doors - Mercedes-Benz SLC 300 2019 Operator's Manual

Problem
The engine cannot be
started using the Smart-
Key.
The engine cannot be
started using KEYLESS-
GO. The SmartKey is in
the vehicle.
You have lost a Smart-
Key.
You have lost the
mechanical key.
The side windows can-
not be opened or closed
using the convenience
opening/closing fea-
ture.

Doors

Important safety notes
G
WARNING
If children are left unsupervised in the vehi-
cle, they could:
operate the vehicle's equipment
R
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 259).
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 SmartKey battery is discharged or nearly discharged.
Check the SmartKey battery (
X
sary ( page 69).
Y
If this does not work:
Start your vehicle with the SmartKey in the ignition lock.
X
There is interference from a powerful source of radio waves.
Start your vehicle with the SmartKey in the ignition lock.
X
Have the SmartKey deactivated at a qualified specialist work-
X
shop.
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
The SmartKey battery is discharged or nearly discharged.
Check the SmartKey battery (
X
sary ( page 69).
Y
page 260).
Y
page 69) and replace it if neces-
Y
page 69) and replace it if neces-
Y
Additionally, children could set the vehicle in
motion if, for example, they:
release the parking brake
R
shift the automatic transmission out of
R
park position j
start the engine
R
There is a risk of an accident and injury.
Doors
71
Z