Mercedes-Benz SL SERIES Operator's Manual page 90

Doors
88
Problem
The engine cannot be
started using the
SmartKey.
The engine cannot be
started using KEYLESS-
GO. The SmartKey is in
the vehicle.
Doors
Important safety notes
G WARNING
If children are left unsupervised in the vehicle,
they could:
open the doors, thus endangering other
R
people or road users.
get out and disrupt traffic.
R
operate the vehicle's equipment.
R
Additionally, children could set the vehicle in
motion if, for example, they:
release the parking brake.
R
shifting the automatic transmission out of
R
park position P
Start the engine.
R
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
Possible causes/consequences and 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 557).
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
There is interference from a powerful source of radio waves.
Start your vehicle with the SmartKey in the ignition lock.
X
page 559).
Y
Unlocking and opening doors from
the inside
! The side windows will not open/close if
the battery is discharged or if the side win-
dows have iced up. It will then not be pos-
sible to close the door. Do not attempt to
force the door closed. You could otherwise
damage the door or the side window.
You can open a door from inside the vehicle
even if it has been locked.
If the vehicle was previously locked with the
SmartKey or with KEYLESS-GO, opening the
vehicle from the inside will activate the anti-
theft alarm system. Switch off the alarm
( page 80).
Y