In order to reduce risks:
R
draw the passengers' attention to the elec-
trical step. Wait until the electrical step is
fully extended.
R do not jump out of the vehicle.
R only use the grab handle and step. Only
they are designed for such a load.
R keep grab handles, access steps and entry
sills free from dirt, e.g. mud, clay, snow and
ice. Operation and obstacle detection
Electrical step
The sliding door of your vehicle can be equip-
ped with an electrical access step.
X When getting in and out of the vehicle, use
the grab handles and electrical step 0043.
Electrical step 0043automatically extends
when the sliding door is opened and retracts
when it is closed.
Electrical step 0043is equipped with an
obstruction detection device on the front
side. If the step comes into contact with an
obstacle while it is extending, it stops.
After you have removed the obstacle, you
must first close the sliding door and open it
once again so that the step can extend com-
pletely.
i If the electrical step obstructs loading,
you can prevent the step from extending
when opening the sliding door via obstacle
detection. The electrical step can then
remain retracted and a forklift or other lift- ing equipment can be moved nearer to the
cargo compartment.
Vehicles without steering-wheel buttons: if
the 003E indicator lamp in the instrument
cluster lights up and a warning tone sounds,
electrical step 0043is malfunctioning
(Y page 230).
Vehicles with steering-wheel buttons: if the
Electrical Step
Electrical Step message is shown in the
display and a warning tone sounds, electrical
step 0043is malfunctioning (Y page 219).
If electrical step 0043is malfunctioning, the
step may only partially extend/retract or may
not extend/retract at all. If a malfunction
does occur, you will have to retract and lock
electrical step 0043manually before continuing
the journey (Y page 74).
Before passengers get out of the vehicle, let
them know that electrical step 0043might not
be extended. Emergency release
! Driving with the step extended may result
in it being damaged.
If the electrical step does not retract auto-
matically, you will have to push it in and
lock it into place manually before continu-
ing your journey. X
Pull R-clips 0044on both rods 0043on the
underside of the step out of their respective
pins.
X Remove washers 0087and detach both
rods 0043. 74
Electrical stepOpening and closing
For this reason, check the condition and func-
tion of your vehicle's lighting system and, if
necessary, that of the trailer before each jour-
ney.
The bulb failure indicator monitors all of the
exterior lighting lamps, except the perimeter
lamp and the trailer lighting. If a bulb fails,
either the 0049(Ypage 35) indicator lamp
lights up, or you will see a corresponding
message in the display (Y page 210).
i Depending on the equipment, the bulb
failure indicator can fail for all lamps with
the exception of the turn signal lamps. Light switch
Operation 00470058
Automatic headlamp mode
0048003F Lights off/daytime running lamp
mode
00490060 Parking lamps, license plate and
instrument lighting
004A0058 Low-beam/high-beam headlamps
004B005A Fog lamps
004C005E Rear fog lamp
If you hear a warning tone when you leave the
vehicle, the lights may still be switched on.
X Turn the light switch to 003For0058.
Or
X If the rear fog lamp is switched on: press
the light switch in to the stop. The turn signals, high-beam headlamps and
the high-beam flasher are operated using the
combination switch (Y
page 95).
Low-beam headlamps X
To switch on: turn the key to position 2in
the ignition lock or start the engine.
X Turn the light switch to position 0058.
The 0058 indicator lamp in the instrument
cluster lights up.
X To switch off: turn the light switch to
003F.
Daytime running lamps You can activate/deactivate the daytime run-
ning lamps function using the on-board com-
puter.
This is not possible in countries where day-
time running lamps are a legal requirement.
The daytime running lamps function must be
activated using the on-board computer:
R
vehicles with steering wheel buttons
(Y page 194)
R vehicles without steering wheel buttons
(Y page 185)
X To switch on: turn the light switch to the
003F position.
The low-beam headlamps, parking lamps
and license plate lamp are switched on
when the engine is running. The 0058indi-
cator lamp in the instrument cluster lights
up.
i USA only:
If you turn the light switch to the 0060or
0058 position, the parking lamps or low-
beam headlamps switch on. If you turn the
light switch to the 0058position, the day-
time running lamps remain switched on.
i Canada only:
If you turn the light switch to the 0058posi-
tion, the low-beam headlamps are switched
on. If you turn the light switch to the 0060 Exterior lighting
93Lights and windshield wipers Z
Active light function
The active light function is a system that
moves the headlamps according to the steer-
ing movements of the front wheels. In this
way, relevant areas will be illuminated to a
greater extent while driving. This allows you
to recognize pedestrians, cyclists and ani-
mals.
Active: when the lights are switched on. Highbeam Assist
General notes You can use this function to set the head-
lamps to change between high beam and low
beam automatically. The system recognizes
vehicles with their lights on, either approach-
ing from the opposite direction or traveling in
front of your vehicle, and consequently
switches the headlamps from high beam to
low beam.
Once the system no longer detects any other
vehicles, it reactivates the high-beam head-
lamps.
The system's optical sensor is located behind
the windshield near the overhead control
panel.
Important safety notes G
WARNING
Highbeam Assist does not recognize road
users:
R who have no lights, e.g. pedestrians
R who have poor lighting, e.g. cyclists
R whose lighting is blocked, e.g. by a barrier
In very rare cases, Highbeam Assist may fail
to recognize other road users who have lights,
or may recognize them too late. In this or sim-
ilar situations, the automatic high-beam head-
lamps will not be deactivated or will be acti-
vated regardless. There is a risk of an acci-
dent. Always carefully observe the traffic conditions
and switch off the high-beam headlamps in
good time.
Highbeam Assist cannot take into account
road, weather or traffic conditions. Highbeam
Assist is only an aid. You are responsible for
adjusting the vehicle's lighting to the prevail-
ing light, visibility and traffic conditions.
In particular, the detection of obstacles can
be restricted if there is:
R poor visibility, e.g. due to fog, heavy rain or
snow
R dirt on the sensors or anything else cover-
ing the sensors
Activating/deactivating Highbeam
Assist X
To activate: switch on the Highbeam
Assist function using the on-board com-
puter (Y page 194).
X Turn the light switch to the 0058position.
X Press the combination switch beyond the
pressure point in the direction of arrow 0043
(Y page 95).
Highbeam Assist is active.
The or
00CE indicator lamp in the
multifunction display lights up when it is
dark and the light sensor activates the low-
beam headlamps.
If you are driving at speeds above approx-
imately 22 mph (35 km/h) and no other
road users have been detected:
The high-beam headlamps are switched on
automatically. The 0057indicator lamp in
the instrument cluster also lights up.
If you are driving at speeds below approx-
imately 19 mph (30 km/h) other road users
are recognized or the roads are adequately
lit:
The high-beam headlamps are switched off
automatically. The 0057indicator lamp in
the instrument cluster goes out. The 00CE Exterior lighting
97Lights and windshield wipers Z
or indicator lamp in the multifunc-
tion display remains lit.
X To deactivate: move the combination
switch back to its normal position or move
the light switch to another position.
The 00CE or indicator lamp in the
multifunction display goes out. Headlamps fogged up on the inside
The headlamps may fog up on the inside if
there is high atmospheric humidity.
X Switch on the low-beam headlamps and
drive off.
The level of moisture diminishes, depend-
ing on the length of the journey and the
weather conditions (humidity and temper-
ature).
If the level of moisture does not diminish:
X Have the headlamps checked at a qualified
specialist workshop. Interior lighting
Switching the dashboard lighting on/
off
Overview Standard interior light
0047
Interior light switched on
0048 Interior light switched off
0049 Automatic control system switched on Interior lights in the overhead control panel
0043 To switch the left-hand reading lamp on/
off
0044 To switch the right-hand reading lamp on/
off
0087 Right-hand reading lamp
0085 Interior light
0083 To switch the automatic control system
on/off
0084 To switch the interior light on/off
006B Left-hand reading lamp
If you switch on the interior light or reading
lamp on the overhead control panel manually,
it switches off automatically after
20 minutes.
Automatic control The interior light comes on if you:
R
unlock the vehicle
R open the driver's or the co-driver's door
R remove the key from the ignition lock
The interior light switches off again automat-
ically.
If a door is left open, the interior lighting
switches off after approximately 20 minutes. 98
Interior lightingLights and windshield wipers
Control panel for the air-conditioning system
0043
Sets the temperature (Y page 117)
0085 Defrosts the windshield (Y page 118)
0044 Sets the airflow (Y page 118)
0097 Increases the airflow
0095 Reduces the airflow
0087 008A Switches air-recirculation mode on/off (Y page 120)
0085 0083 Switches the reheat function (window air dehumidification) on/off ( Ypage 118)
0083 Sets the air distribution (Y page 117)
007E0085 Defrosts the windshield (Y page 118)
0084 005A Switches cooling with air dehumidification on/off ( Ypage 117)
006B Blower setting bar display
0085 Defrosts the windshield (Y page 118)Information on the air-conditioning
system
Below, you can find a number of notes and
recommendations to help you use the air-
conditioning system optimally.
R Switch on the cooling with air dehumidifi-
cation function. The indicator lamp in the
switch lights up.
R Set the temperature to 72 ‡ (22 †). Only
change the temperature in small incre-
ments.
R Only use the "defrosting" function briefly,
until the windshield is clear again. R
Only use air-recirculation mode briefly, e.g.
if there are unpleasant outside odors or
when in a tunnel. The windows could oth-
erwise fog up as no fresh air is drawn into
the vehicle in air-recirculation mode.
R Only use the reheat function until the fog-
ged up windows are clear again. 114
Overview of climate control systemsClimate control
Control panel for rear-compartment air-conditioning system
0043
Sets the airflow (Y page 118)
0097 Increases the airflow
0095 Reduces the airflow
0044 Sets the temperature (Y page 117)
0087 Blower setting bar display
0085 0074 Switches the rear-compartment air conditioning on/off (Y page 116)Information on rear-compartment air
conditioning
For optimum climate control, set the temper-
ature control to the middle level. Only change
the temperature in small increments. Operating the climate control system
Switching the climate control on/off
Important information When the climate control is switched off, air
intake and air circulation also stop. Only use
this setting for a brief period. Otherwise, the
windows could fog up. Activating/deactivating climate
control via the control panel X
Turn the key to position 2in the ignition
lock.
Vehicle with heating
X To switch on: set airflow control 0044down
to at least level 1(Y page 114).
X To switch off: set airflow control 0044up to
the 0position (Y page 114).
Vehicle with air conditioning
X To switch on: press the0097button.
The blower speeds are shown in bars next
to the button.
X To switch off: press the0095button and,
after reaching the lowest blower speed,
press it again. 116
Operating the climate control systemClimate control
007C
Directs air to the windshield, the air
vents and into the footwell
007D Directs air to the air vents and into
the footwell
Adjusting X
Switch on climate control (Y page 116).
X Set air-distribution control 0085for the heat-
ing (Y page 113) or air-conditioning system
0083 (Ypage 114) to the corresponding sym-
bol. Setting the airflow
X Switch on climate control (Y page 116).
X Vehicle with heating/rear-compart-
ment heating: set airflow control 0044of the
heating (Y page 113) or of the rear-com-
partment heating ( Ypage 115) to the
desired level.
X Vehicle with air conditioning/rear-com-
partment air conditioning: press the
0095 button to reduce or the 0097button
to increase the airflow.
The blower speeds are shown in bars next
to the buttons. Defrosting the windows
You can use the "defrosting" function to
defrost the windshield or to demist the inside
of the windshield and the side windows.
Only use the following settings until the win-
dows are clear again.
X Vehicle with window heating: switch on
the front (Y page 119) and/or rear window
defroster (Y page 120) .
X Switch on climate control (Y page 116).Vehicle with heating
X
Set temperature control 0043and airflow
control 0044to0085 (Ypage 113).
X Set air-distribution control 0085to007E
0085 (Ypage 113).
X Close the center air vents (Y page 121) and
the air outlets for the headroom and the
rear compartment ( Ypage 121).
X Direct the side air vents towards the side
windows and open the defroster vents for
the side windows (Y page 121).
Vehicle with air conditioning
X Set temperature control 0043to
0085 (Ypage 114).
X Press the 0097button until the maximum
blower output is reached.
All bars in the display next to the button
light up.
X Set air-distribution control 0083to007E
0085 (Ypage 114).
X Close the center air vents (Y page 121) and
the air outlets for the headroom and the
rear compartment ( Ypage 121).
X Direct the side air vents towards the side
windows and open the defroster vents for
the side windows (Y page 121). Clearing condensation from the win-
dows
Windows fogged up on the inside You should only select this setting until the
windows are clear again.
X
Vehicle with window heating: switch on
the front (Y page 119) and/or rear window
defroster (Y page 120) .
X Switch on climate control (Y page 116).
X Switch off air-recirculation mode
(Y page 120). 118
Operating the climate control systemClimate control
Operating with the button (control
panel)
i
Switch the heater booster function on or
off with the 006Abutton (Y page 130).
X To activate the auxiliary heating sys-
tem: press the upper section of the 0084
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 0084button.
Or
X Turn the key in the ignition lock to posi-
tion 0.
The red indicator lamp in the button goes
out. The auxiliary heating operates for
another two minutes and then switches off
automatically. Selecting a switch-on time
Important information You can use the on-board computer to define
up to three switch-on times, one of which can
be selected.
The yellow indicator lamp in the 0084button
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. On-board computer without steering
wheel buttons X
Turn the key to position 2in the ignition
lock.
X Press the 0084button.
The 0084 symbol flashes in the display.
Or
X Press the 0079menu button on the instru-
ment cluster repeatedly until the 0084
symbol flashes in the display.
X Use the 0074or0075 buttons on the instrument
cluster to select the switch-on time 1
1 to 3 3.
The switch-on time selected is displayed.
X Wait 10 seconds for the standard display to
appear.
The switch-on time is selected. The yellow
indicator lamp in the 0084button lights up.
If you do not preselect a switch-on time,
and --:-- --:-- is shown in the display, this
means that the automatic switch-on mode
is switched off. The yellow indicator lamp
in the 0084button goes out.
On-board computer with steering wheel
buttons X
Turn the key to position 2in the ignition
lock.
X Press the 0084button.
The Aux. heat Aux. heat submenu is shown in the
display.
If no switch-on time has been selected, the
selected switch-on time is highlighted or
Timer off
Timer off is highlighted.
i You can also access the Aux. Aux.heat.
heat. sub-
menu via the Settings
Settings(Ypage 190)
menu. 124
Operating the auxiliary heating systemClimate control