If there is a key is in the ignition lock, the
remote control is inoperative. When locking
or unlocking the vehicle with the remote
control, always pay attention to the indicator
lamp signaling. Also check the locking knobs
of the doors.
Unlocking/locking the vehicle with the
remote control Remote control with an integrated folding key
0005 0002 To unlock the sliding doors and the
rear door
0006 0009 To unlock the driver's door only or
unlock the vehicle centrally
0026 0008 To lock the vehicle centrally
0025 Key release button
0023 Battery check lamp
X To unlock the driver's door: press the
0009 button.
The turn signals flash once. The theft
deterrent locking system is deactivated.
X To unlockt he sliding doors and the rear
door: press the 0002button.
The turn signals flash once.
X To unlock centrally: unlock the driver's
door.
X Press the 0009button again within
2s econds.
The turn signals flash once.
i If the surround lighting has been switched
on using the on-board computer
(Y page 187), it goes on when the vehicle
is unlocked. If you do not open a Cargo Van or
Passenger Van within approximately
40 seconds of unlocking:
R
the vehicle is locked again.
R the theft deterrent locking system is
armed again.
X To lock centrally: press the0008button.
The indicator lamps flash three times when
the thef tdeterrent locking system has been
armed and all doors have been closed.
X Check the locking knobs on all the doors.
The locking knobs must all be in the
lowered position.
Unlocking/locking the vehicle with the
mechanical key or the folding key The anti-thef
talarm system (ATA) is triggered
if you unloc kand open the driver's door or the
rea rdoor with the mechanical key or the
folding key.
The alarm can be disabled in the following two
ways:
X Press the 0009or0008 button on the
remote control.
Or
X Insert the key into the ignition lock. Key
65Opening and closing Z
The auxiliary heating works independently of
the engine and supplements the climate
control system in the vehicle. The auxiliary
heating heats the air in the vehicle interior to
the temperature set.
If your vehicle is equipped with a hot-water
auxiliary heater, the auxiliary heating also
keeps the coolant warm. This way, the load
on the engine is minimized and fuel is saved.
The heater booster function of the auxiliary
heating supports the climate control system
when the engine is runnin gand the outside
temperature is low.
You can use the auxiliary heating at an
outside temperature of up to 39 ‡ (4 †). At
an outside temperature above 39 ‡(4† ) the
auxiliary heating system and the heater
booster function switch off automatically.
i If the interior motion sensor (Y page 61)
is armed and the auxiliary heating is
switched on, it is possible that the interior
temperature monitoring may cause a false
alarm. In this case, either deactivate the
interior motion sensor or switch off the
auxiliary heating. Before switching on
X Check the fuel level and top up if necessary.
The auxiliary heating is operated directly
using the vehicle's fuel. The tan kmust be
at least a quarter full to ensure that the
auxiliary heating functions.
X Switch on climate control (Y page 112).
X Se tthe temperature control to the desired
temperature (Y page 113).
X Set the air distribution as required
(Y page 113).
X Open the center (Y page 117) and side air
vents (Y page 117) and set them to the
middle position.
i The auxiliary heating automatically
switches to heater booster mode after the
engine is started. Operating with the button (control
panel)
i
Switch the heater booster function on or
off with the 0013button (Y page 125).
X To activate the auxiliary heating
system: press the upper section of the
0020 switch for longer than two seconds.
The red indicator lamp in the button lights
up. The auxiliary heating heats or ventilates
the interior to the temperature that you
have set. The blower switches to the first
level.
X To switch off auxiliary heating: press the
upper section of the 0020button.
Or
X Turn the key in the ignition lock to
position 0.
The red indicator lamp in the button goes
out. The auxiliary heating operates for
another two minutes and then switches off
automatically. Selecting
aswitch-on time
Important information You can use the on-boar
dcomputer to define
up to three switch-on times, one of which can
be selected.
The yellow indicator lamp in the 0020button
goes out after 30 minutes, if you:
R have selected the switch-on time and
R turn the key to position 0in the ignition
lock. Operating the auxiliary heating system
119Climate control Z
