Mercedes-Benz 2003 SLK 230 Kompressor Operator's Manual page 76

Controls in detail
Locking and unlocking
Warning!
When leaving the vehicle, always remove the
key from the steering lock and lock the vehi-
cle. Do not leave children unattended in the
vehicle, or with access to an unlocked vehi-
cle. It is possible for children to open a
locked door from the inside, which could re-
sult in an accident and/or serious injury.
76
!
G
If you can no longer lock or unlock the
vehicle with the remote control, then
either the batteries in the remote con-
trol are discharged, the remote control
is malfunctioning, or the vehicle battery
is drained.
Check the batteries in the remote
control and replace them if neces-
sary ( page 212)
or
Synchronize the remote control
( page 213)
or
Use the folding key to unlock the
doors ( page 210) and the trunk
( page 210) as required. Lock the
vehicle using the folding key
( page 211).
If the remote control is malfunctioning,
contact an authorized Mercedes-Benz
Center.
Checking the batteries
Press button ‹ or Œ longer than
1 second.
The battery check lamp 4 lights up
briefly to indicate that the key batteries
are in order.
!
If battery check lamp 4 does not light
up briefly during the check, then the re-
mote control batteries are discharged.
Replace the batteries ( page 212).
You can obtain the required batteries
at any authorized Mercedes-Benz
Center.