Page 89 of 334

X
To raise: pull the head restraint up to the
desired position.
X To lower: press release button 0043and slide
the head restraint down to the desired posi- tion.
X To adjust the angle: hold the front part of
the luxury head restraint by the lower edge
and tilt it to the desired position.
X To remove : pull the head restraint up to
the stop.
X Press release button 0043and pull out the
head restraint.
X To insert: insert the head restraint so that
the rod with the detents is on the left when viewed in the direction of travel.
X Press and hold release button 0043.
X Push the head restraint down until it
engages. Armrests
X
To set the armrest angle: fold the armrest
upwards by more than 45° 0044.
The armrest is released.
X Fold armrest 0087forwards to the stop.
X Slowly fold the armrest upwards to the
desired position.
X To fold the armrest up: if necessary, fold
the armrest upwards 0043by more than 90°. Seat heating
G
WARNING
Repeatedly switching on the seat heating can
cause the seat cushion and backrest pads to
become very hot. The health of persons with
limited temperature sensitivity or a limited
ability to react to excessively high tempera-
tures may be affected or they may even suffer burn-like injuries. There is a risk of injury.
Therefore, do not switch the seat heating on
repeatedly.
! When you leave your seat, do not place
anything on the seat and switch off the seat
heating. Do not switch the seat heating on
when the seat is not occupied, e.g. when
driving without a co-driver. The seat heat-
ing may otherwise overheat, causing dam-
age to the seat. The three red indicator lamps in the
0072
button show the activated heating level 1to
3.
The system automatically switches down
from level 3to level 2after approximately
five minutes.
The system automatically switches down
from level 2to level 1after approximately
ten minutes.
At level 1, the seat heating remains in con-
tinuous operation. Seats
87Seats, steering wheel and mirrors Z
Page 90 of 334

X
Make sure that the key is in position 1or 2
in the ignition lock.
X To switch on: press the0072button
repeatedly until the desired heating level
has been set.
X To switch off: press the0072button
repeatedly until all indicator lamps go out.
If the indicator lamps of the current heating
level in the 0072button flash, the seat heat-
ing has switched off automatically. In this
case, too many electrical consumers are
switched on or the battery charge is not suf-
ficient. The seat heating will automatically
switch back to the current heating level when
enough on-board voltage is available again. Steering wheel
G
WARNING
You could lose control of your vehicle if you do the following while driving:
R adjust the driver's seat, head restraint,
steering wheel or mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the engine. G
WARNING
If the steering wheel is unlocked while the
vehicle is in motion, it could change position
unexpectedly. This could cause you to lose
control of the vehicle. There is a risk of an
accident.
Before starting off, make sure the steering
wheel is locked. Never unlock the steering
wheel while the vehicle is in motion. G
WARNING
Children could injure themselves if they
adjust the steering wheel. There is a risk of
injury. When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The steering wheel can still be adjusted if the
key has been removed. 0043
Steering column fore-and-aft adjustment
0044 Steering column height
0087 Lever
X To set the steering wheel: swing lever0087
down until it engages.
The steering wheel is unlocked.
X Move the steering wheel to the desired
position.
X Pull lever 0087up to the stop.
The steering wheel is locked again. 88
Steering wheelSeats, steering wheel and mirrors
Page 91 of 334

Mirrors
Rear-view mirror
X
Anti-glare mode: push anti-glare lever 0043
in the direction of the arrow. Exterior mirrors
Important safety notes G
WARNING
The additional mirrors in the exterior mirrors
reduce the size of the image. Objects visible in the mirrors are closer than they appear. You
could misjudge the distance from road users
driving behind you when changing lanes, for
instance. There is a risk of an accident.
You should therefore always determine the
actual distance from road users driving
behind you, e.g.:
R by looking over your shoulder
R by looking in the main mirror in the exterior
mirror.
Adjusting manually X
Before starting off, manually adjust the
exterior mirrors in such a way that you can
get a good overview of road and traffic con- ditions. Adjusting electrically
Adjustment buttons and switches for setting the
mirrors
X Before pulling away, turn the key to position
2 in the ignition lock (Y page 138).
X Press switch 0044to position 1for the left-
hand exterior mirror or to position 2for the
right-hand exterior mirror.
X Press adjustment button 0043at the top, bot-
tom, right or left.
Adjust the exterior mirrors in such a way
that you can get a good overview of road
and traffic conditions.
i The exterior mirrors are automatically
heated at low outside temperatures. Mirrors
89Seats, steering wheel and mirrors Z
Page 92 of 334
Page 93 of 334
Useful information
..............................92
Exterior lighting .................................. 92
Interior lighting ................................... 97
Changing bulbs .................................... 99
Windshield wipers ............................107 91Lights and windshield wipers
Page 94 of 334

Useful information
This Operator's Manual describes all models
as well as standard and optional equipment of your vehicle that were available at the time of going to print. Country-specific variations are
possible. Note that your vehicle may not be
equipped with all of the described functions.
This also applies to systems and functions
relevant to safety.
Read the information on qualified specialist
workshops (Y page 25). Exterior lighting
Important safety notes
For reasons of safety, we recommend that
you drive with the lights switched on even
during the daytime. There may be differences
in operation due to legal requirements and
voluntary recommendations in some coun-
tries. Bulb failure indicator
The bulb failure indicator is only an aid. You
are responsible for the proper functioning of
the vehicle lighting. Insufficient or non-func-
tioning vehicle lighting puts the operating
safety of the vehicle at risk.
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 208).
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 0047
0058
Automatic headlamp mode/
daytime running lamps
0048 003F
Lights off
0049 0060
Parking lamps, license plate and
instrument lighting
004A 0058
Low-beam/high-beam headlamps
004B 005A
Fog lamps
004C 005E
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 94).
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.
Daytime running lamps You can activate/deactivate the daytime run-
ning lamps function using the on-board com-
puter. 92
Exterior lightingLights and windshield wipers
Page 95 of 334

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 192)
R vehicles without steering wheel buttons
(Y page 183)
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 0058
position, the low-beam headlamps are
switched on. If you turn the light switch to
the 0060 or0058 position, the daytime
running lamps remain switched on.
Automatic headlamp mode G
WARNING
When the light switch is set to 0058, the low-
beam headlamps may not be switched on
automatically if there is fog, snow or other
causes of poor visibility due to the weather
conditions such as spray. There is a risk of an
accident.
In such situations, turn the light switch to
0058.
Automatic headlamp mode is only a driving
aid. You are responsible for the vehicle light-
ing at all times.
Depending on ambient light, the rain and light sensor automatically switches on the parking lamps, low-beam headlamps and the license
plate lamp. This excludes weather-related
impairments to visibility, such as snow, fog or
spray.
If there is fog, snow or spray, turn the light
switch quickly from 0058to0058. You could
otherwise briefly interrupt operation of the
headlamps.
X To switch on automatic headlamp
mode: turn the light switch to 0058.
Key in position 1in the ignition lock: the
parking lamps switch on or off automati-
cally depending on the ambient light.
When the engine is running: if you activate
the "daytime running lamps" function using the on-board computer, the daytime run-
ning lamps are switched on. The parking
lamps and low-beam headlamps also
switch on or off automatically, depending
on the ambient light.
When the low-beam headlamps are
switched on, the 0058indicator lamp in the
instrument cluster lights up.
Fog lamps/rear fog lamp G
WARNING
If you suspect that driving conditions will be
foggy, turn the light switch to 0058before you
start your journey. Your vehicle may other-
wise not be visible and you could endanger
yourself and others. G
WARNING
In low ambient lighting or foggy conditions,
only switch from position 0058to0058 with
the vehicle at a standstill in a safe location.
Switching from 0058to0058 will briefly
switch off the headlamps. Doing so while driv-
ing in low ambient lighting conditions may
result in an accident.
X Turn the ignition key to position 2in the
ignition lock or start the engine.
X Turn the light switch to 0058or0060. Exterior lighting
93Lights and windshield wipers Z
Page 96 of 334

i
If your vehicle is only equipped with one
rear fog lamp, you must turn the light
switch to 0058.
i When the light switch is set to
0058, you
cannot switch on the front or rear fog
lamps.
X To switch on the front fog lamps: pull the
light switch out to the first locking point.
The green 005Aindicator lamp on the light
switch lights up.
X To switch on the rear fog lamp: pull the
light switch out to the second locking point.
The yellow 005Eindicator lamp on the light
switch lights up.
X To switch off the front fog lamps/rear
fog lamp: push in the light switch to the
stop.
The 005E and005A indicator lamp on the
light switch go out. Combination switch
Turn signal lamps 0043
To indicate a right turn
0044 To indicate a left turn X
To indicate: press the combination switch
in desired direction 0043or0044 until it
engages.
The combination switch automatically
returns to its original position after large
steering movements.
X To indicate briefly: press the combination
switch briefly in desired direction 0043or0044.
The corresponding turn signal flashes three
times.
High-beam headlamps and high-beam
flasher 0043
High-beam headlamps
0044 High-beam flasher
X To switch on the high-beam headlamps:
switch on the low-beam headlamps
(Y page 92).
X Press combination switch 0043forwards.
The 0057 indicator lamp in the instrument
cluster lights up.
i In the
0058position, the high-beam head-
lamps are only switched on when it is dark
and the engine is running.
X To switch off the high-beam headlamps:
move the combination switch back to its
normal position.
The 0057 indicator lamp in the instrument
cluster goes out.
X To switch on the high-beam flasher: turn
the key to position 1or 2in the ignition
lock.
X Pull the combination switch briefly in direc-
tion of arrow 0044.94
Exterior lightingLights and windshield wipers