Mercedes Benz 2009 M-Class User Manual

Page of 585
111
Controls in detail
Locking and unlocking
Checking the batteries
Press button
‹ or Œ.
Battery check lamp
5 (
page 108) 
comes on briefly to indicate that the 
SmartKey batteries are in order.
Unlocking and opening the tailgate 
(Vehicles with power tailgate*)
You can unlock and open the tailgate sep-
arately.
A minimum height clearance of 7.2 ft 
(2.20 m) is required to open the tailgate.
Press and hold button
Š on the 
SmartKey until the tailgate unlocks and 
begins to open.
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 Light Truck 
Center.
Report the loss of the SmartKey or the 
mechanical key immediately to your 
car insurance company.
If necessary, have the mechanical lock 
replaced.
Your authorized Mercedes-Benz Light 
Truck Center will be glad to supply you 
with a replacement.
i
If battery check lamp
5 does not come on 
briefly during check, the SmartKey batteries are 
discharged.
Replace the batteries (
page 480).
You can obtain the required batteries at any 
authorized Mercedes-Benz Light Truck Center.
i
If the batteries are checked within signal 
range of the vehicle, pressing the 
button
‹ or Œ will lock or unlock the 
vehicle accordingly.
!
The tailgate swings open upwards automat-
ically. Always make sure there is sufficient over-
head clearance.
To stop the opening procedure, press 
button
Š on the SmartKey. The tailgate stops 
moving.
i
If the vehicle was previously centrally locked 
with the SmartKey, the tailgate will lock automat-
ically when closed. The turn signals will flash 
three times to confirm locking.