Mercedes-Benz 2003 SL 500 Operator's Manual page 82

Controls in detail
Locking and unlocking
!
If you can no longer lock or unlock the
vehicle with the key, then either the
batteries in the electronics are dis-
charged or the key is malfunctioning.
Check the batteries in the key
( page 82) and replace them if
necessary ( page 293).
or
Use the mechanical key to unlock
the doors ( page 290) and trunk
( page 291) as required. Lock the
vehicle using the mechanical key
( page 292).
If the key is malfunctioning, contact an
authorized Mercedes-Benz Center.
82
Checking the batteries
Press button ‹ or Œ .
The battery check lamp 5 lights up
briefly to indicate that the key batteries
are in order.
!
If the battery check lamp 5 does not
light up briefly during check then the
key batteries are discharged.
Change the batteries ( page 293).
You can obtain the required batteries
at any authorized Mercedes-Benz Cen-
ter.
Unlocking the trunk lid
You can unlock the trunk separately.
Press and hold button Š until trunk
unlocks.
i
If the vehicle was previously centrally
locked, the trunk lid will lock automati-
cally when closed. The turn signals will
flash three times to confirm locking.