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Controls in detail
Locking and unlocking
Global locking
̈ Press button ‹.
With all doors and the trunk closed:
ț All turn signal lamps flash three
times.
ț An acoustic warning sounds three
times (if equipped and feature acti-
vated). For more information, see
“Factory setting” (
୴ page 96).
ț The locking knobs in the doors
move down.
ț The anti-theft alarm system is
armed.
Restoring to factory setting
̈ Press and hold buttons Œ and ‹
simultaneously for about 5 seconds
until battery check lamp 5
(
୴ page 94) flashes twice.
Checking the batteries
̈ Press button ‹ or Œ.
The battery check lamp (
୴ page 94)
comes on briefly to indicate that the
SmartKey batteries are in order.
Loss of SmartKey or mechanical key
If you lose a SmartKey or mechanical key,
you should do the following:
̈ Have the SmartKey deactivated by an
authorized Mercedes-Benz Center.
̈ Report the loss of the SmartKey or the
mechanical key to your car insurance
company immediately.
̈ If necessary have the mechanical lock
replaced.
Your authorized Mercedes-Benz Center
will be glad to supply you with a replace-
ment.
i
If the battery check lamp (୴ page 94) does
not come on briefly during check, the SmartKey
batteries are discharged.
ț Replace the batteries (୴ page 391).
You can obtain the required batteries at any
authorized Mercedes-Benz Center.
i
If the batteries are checked within signal
range of the vehicle, pressing
button ‹ or Œ will lock or unlock the
vehicle accordingly.