
X
Move adjustment lever 0043 in the direction
of the arrow until the desired backrest
contour is achieved. Adjusting the 4-way lumbar support
You can adjust the contour of the front seat
backrests individually to provide optimum
support for your back. 0043
To raise the backrest contour
0044 To soften the backrest contour
0087 To lower the backrest contour
0085 To harden the backrest contour Switching the seat heating on/off
Activating/deactivating G
WARNING
Repeatedly setting the seat heating to level
3 may result in excessive seat temperatures.
The health of passengers that have limited
temperature sensitivity or a limited ability to
react to excessively high temperatures may
be affected or they may even suffer burn-like
injuries. Therefore, do not use seat heating
level 3 repeatedly.
The three red indicator lamps in the button
indicate the heating level you have selected.
i If the battery voltage is too low, the seat
heating may switch off. Driver's and front-passenger seat
The system automatically switches down
from level 3 to level 2 after approximately
eight minutes.
The system automatically switches down
from level
2 to level 1
after approximately ten
minutes.
The system automatically switches off
approximately 20 minutes after it is set to
level 1.
X Make sure that the SmartKey is in position
1 or 2 in the ignition lock.
X To switch on: press button 0043 repeatedly
until the desired heating level is set.
X To switch off: press button 0043 repeatedly
until all the indicator lamps go out.
Problems with the seat heating The seat heating has switched off
prematurely or cannot be switched on. The
vehicle's electrical system voltage is too low
because too many electrical consumers are
switched on.
X
Switch off electrical consumers that you do
not need, such as the rear window
defroster or interior lighting. Seats
101
Seats, steering wheel and mirrors Z

Steering wheel
Important safety notes
G
WARNING
Do not adjust the steering wheel while driving.
Adjusting the steering wheel while
driving, or
driving without the steering wheel adjustment
feature locked could cause the driver to lose
control of the vehicle.
The electrical steering wheel adjustment
feature can be operated at any time.
Therefore, do not leave children unattended
in the vehicle, or with access to an unlocked
vehicle. A child's unsupervised access to a
vehicle could result in an accident and/or
serious personal injury. Adjusting the steering wheel
manually
0043
Release lever
0044 To adjust the steering wheel height
0087 To adjust the steering wheel position
(fore-and-aft adjustment)
X Push release lever 0043 down completely.
The steering column is unlocked.
X Adjust the steering wheel to the desired
position.
X Push release lever 0043 up completely.
The steering column is locked.
X Check if the steering column is locked.
When doing so, try to push the steering
wheel up or down or try to move it in the
fore-and-aft direction. Adjusting the steering wheel
electrically
0043
To adjust the steering wheel height
0044 To adjust the steering wheel position
(fore-and-aft adjustment)
i Further related subjects:
R EASY-ENTRY/EXIT feature
(Y page 102)
R Storing settings ( Y page 106) EASY-ENTRY/EXIT feature
Important safety notes G
WARNING
Make sure that nobody can become trapped
when you activate the EASY-ENTRY/EXIT
feature.
If there is a risk of someone becoming
trapped, stop the adjustment procedure. To
halt the procedure:
R press the steering column adjustment
button.
R press one of the memory function position
buttons.
The steering column stops moving
immediately.
Do not keep the memory function position
button pressed as this will start the memory
function and set the steering wheel and seat
in motion.
Do not leave children unattended in the
vehicle. They could open the
driver's door and102
Steering wheel
Seats, steering wheel and mirrors

thereby unintentionally activate the EASY-
ENTRY/EXIT feature and become trapped.
G
WARNING
Let the system complete the adjustment
procedure before setting the vehicle in
motion. All steering wheel adjustment must
be completed before setting the vehicle in
motion. Driving off with the steering wheel
still adjusting could cause the driver to lose
control of the vehicle.
The EASY-ENTRY/EXIT feature makes getting
in and out of your vehicle easier.
You can activate and deactivate the EASY-
ENTRY/EXIT feature in the on-board
computer (
Y page 229).
Position of the steering wheel when the
EASY-ENTRY/EXIT feature is active The steering wheel swings upwards when
you:
R
remove the SmartKey from the
ignition lock
R open the driver's door and KEYLESS-GO is
in position 1
R open the driver's door and the SmartKey is
in position 0 or 1 in the ignition lock
i The steering wheel only moves upwards if
it has not already reached the upper end
stop.
Position of the steering wheel for
driving The steering wheel is moved to the last
selected position when:
R
the driver's door is closed.
R you insert the SmartKey into the ignition
lock.
or
R you press the Start/Stop button once on
vehicles with KEYLESS-GO.
When you close the driver's door with the
ignition switched on, the steering wheel is also automatically moved to the previously
set position.
The last position of the steering wheel is
stored when you switch off the ignition or
when you store the setting with the memory
function (
Y page 106).
Crash-responsive EASY-EXIT feature If the crash-responsive EASY-EXIT feature is
triggered in an accident,
the
steering column
will move upwards when the driver's door is
opened. This occurs irrespective of the
position of the SmartKey in the ignition lock.
This makes it easier to exit the vehicle and
rescue the occupants.
The crash-responsive EASY-EXIT feature is
only operational if the EASY-EXIT/ENTRY
feature is activated in the on-board computer. Mirrors
Rear-view mirror
X
Anti-glare mode: flick anti-glare lever 0043
forwards or back. Exterior mirrors
Adjusting the exterior mirrors G
WARNING
The exterior mirrors reduce the size of the
image. Objects are actually closer than they
appear. You could misjudge the
distance from
vehicles driving behind and cause an Mirrors
103
Seats, steering wheel and mirrors
Z

accident, e.g. when changing lane. For this
reason, make sure of
the
actual distance from
the vehicle driving behind by glancing over
your shoulder.
The convex exterior mirrors provide a larger
field of vision.
The exterior mirrors are automatically heated
after starting the vehicle if the rear window
defroster is switched on and the outside
temperature is low. Mirror heating lasts up to
10 minutes.
i You can also heat up the exterior mirrors
manually by switching on the rear window
defroster. X
Make sure that the SmartKey is in position
1 or 2 in the ignition lock.
X Press button 0043 for the left-hand exterior
mirror or button 0044 for the right-hand
exterior mirror.
The indicator lamp in the corresponding
button lights up in red.
The indicator lamp goes out again after
some time. You can adjust the selected
mirror using adjustment button 0087 as long
as the indicator lamp is lit.
X Press adjustment button 0087 up, down, or
to the left or right until you have adjusted
the exterior mirror to the correct position.
You should have a good overview of traffic
conditions. Folding the exterior mirrors in or out
electrically This function is only available in vehicles for
Canada.
X
Make sure that the SmartKey is in position
1 or 2 in the ignition lock.
X Briefly press button 0043.
Both exterior mirrors fold in or out.
i Make sure that the exterior mirrors are
always folded out fully while driving. They
could otherwise vibrate.
i If you are driving faster than
9 mph (15 km/h)
,
you can no longer fold in
the exterior mirrors.
Setting the exterior mirrors This function is only available in vehicles for
Canada.
If the battery has been disconnected or
completely discharged, the exterior mirrors
must be reset. The exterior mirrors will
otherwise not fold in when you select the
"Fold in mirrors when
locking"
function in the
on-board computer (Y page 230).
X Make sure that the SmartKey is in
position 1 in the ignition lock.
X Briefly press button 0043.
Folding the exterior mirrors in or out
automatically This function is only available in vehicles for
Canada.104
Mirrors
Seats, steering wheel and mirrors

If the "Fold in mirrors when locking" function
is activated in the on-board computer
(Y page 230):
R
the exterior mirrors fold in
automatically as
soon as you lock the vehicle from the
outside.
R the exterior mirrors fold out again
automatically as soon as you unlock the
vehicle and then open the driver's or front-
passenger door.
i If the exterior mirrors have been folded in
manually, they do not fold out.
Exterior mirror out of position If an exterior mirror has been pushed out of
position, proceed as follows:
X
Vehicles without electrically folding
exterior mirrors: move the exterior
mirror
into the correct position manually.
X Vehicles with electrically folding
exterior mirrors 6
: until you hear a click
and then the mirrors engage in position.
(Y page 104)
The mirror housing is engaged again and
you can adjust the exterior
mirrors as usual
(Y page 103). Automatic anti-glare mirrors
G
WARNING
If incident light from headlamps is prevented
from striking the sensor in the rear-view
mirror, for instance, by luggage
piled too high
in the vehicle, the mirror's automatic anti-
glare function will not operate.
Incident light could then blind you. This may
distract you from the traffic conditions and,
as a result, you may cause an accident. The rear-view mirror and the exterior mirror
on the driver's side
automatically
go into anti-
glare mode if the following conditions are met
simultaneously:
R the ignition is switched on and
R incident light from headlamps strikes the
sensor in the rear-view mirror.
The mirrors do not go into anti-glare mode if
reverse gear is engaged or if the interior
lighting is switched on. Parking position for the exterior
mirror on the front-passenger side
Setting and storing the parking
position Using reverse gear
You can position the front-passenger side
exterior mirror in such
a
way that you can see
the rear wheel on that side as soon as you
engage reverse gear. You can store this
position. X
Make sure that the vehicle is stationary and
that the SmartKey is in position 2 in the
ignition lock.
X Press button 0044 for the exterior mirror on
the front-passenger side.
6 Canada only. Mirrors
105
Seats, steering wheel and mirrors Z

X
Engage reverse gear.
The exterior mirror on the front-passenger
side moves to the preset parking position.
X Use adjustment button 0087 to adjust the
exterior mirror to a position
that allows you
to see the rear wheel and the curb.
The parking position is stored.
i If you shift the transmission to another
position, the exterior mirror on the front-
passenger side returns to the driving
position.
Using the memory button
You can position the front-passenger side
exterior mirror
in such
a
way that you can see
the rear wheel on that side as soon as you
engage reverse gear. This setting can be
stored using memory button M 0085.
X Make sure that the SmartKey is in
position 2 in the ignition lock.
X With the exterior mirror on the front-
passenger side activated, use adjustment
button 0087 to adjust the exterior mirror. In
the exterior mirror, the rear wheel and the
curb should be visible.
X Press memory button M 0085 and
one of
the
arrows on adjustment button 0087
within
three seconds.
The parking position is stored if the exterior
mirror does not move.
X If the mirror moves out of position, repeat
the steps.
Calling up a stored parking position
setting X
Turn the SmartKey to position 2 in the
ignition lock.
X Adjust the exterior mirror on the front-
passenger side using button 0044.
X Engage reverse gear.
The exterior mirror on the front-passenger
side moves to the stored parking position. The exterior mirror on the front-passenger
side moves back to its original position:
R
as soon as you exceed a speed of 9 mph
(15 km/h)
R if you press button 0043 for the exterior
mirror on the driver's side Memory function
Storing settings
G
WARNING
Only use the memory function on the driver's
side when the vehicle is
stationary. You could
otherwise be distracted from the traffic
conditions by the seat moving of its own
accord, and as a result cause an accident.
With the memory function, you can store up
to three different settings, e.g. for three
different people.
The following settings are stored as a single
memory preset:
R position of the seat, backrest and head
restraint
R driver's side: steering wheel position
R driver's side: position of the exterior
mirrors on the driver's and front-passenger
sides106
Memory function
Seats, steering wheel and mirrors

X
Adjust the seat ( Y page 98).
X On the driver's side, adjust the steering
wheel (Y page 102) and the
exterior mirrors
(Y page 103).
X Briefly press the M memory button and
then press storage position button 1, 2 or
3 within three seconds.
The settings are stored in the selected
preset position. A tone sounds when the
settings have been completed. Calling up a stored setting
! If you want to move
the seat from the fully
reclined position to a stored seat position,
first raise the backrest. The seat could
otherwise be damaged.
X Press and hold the relevant storage
position button 1, 2 or 3 until the seat,
steering wheel and exterior mirrors are in
the stored position.
i The setting procedure is interrupted as
soon as you release the storage position
button. Memory function
107
Seats, steering wheel and mirrors Z

General notes
0043
Rear view camera
Rear view camera 0043 is
located in
the handle
strip of the tailgate.
Rear view camera 0043 is an optical parking and
maneuvering aid. It uses guide lines to show
the area behind your vehicle in the Audio/
COMAND display.
The area behind the vehicle is displayed as a
mirror image, as in the rear view mirror.
i The text of messages shown in the
COMAND display depends on the language
setting. The following are examples of rear
view camera messages in the COMAND
display.
Activating/deactivating the rear view
camera X
To activate: make sure that the
SmartKey
is in position 2 in the ignition lock.
X Make sure that the "Activation by R gear"
setting is active in COMAND, see the
separate COMAND operating instructions. X
Engage reverse gear.
The area behind the vehicle
is shown in the
COMAND display with guide lines.
X To change the function mode for
vehicles with trailer tow hitch: using
the
COMAND controller, select symbol 0043 for
the "Reverse parking" function or
symbol 0044 for "Coupling up a trailer" (see
the separate COMAND operating
instructions).
The symbol of the selected function is
highlighted.
To deactivate: the rear view camera is
deactivated if you:
R shift the transmission to position P
R drive forwards 33 ft (10 m)
R shift the transmission from R to another
position after 15 seconds
R drive forwards at a speed of over 5 mph
(10 km/h )
Displays in
the
Audio/COMAND display The rear view camera may show a distorted
view of obstacles, show them incorrectly or
not at all. The
rear
view camera does not show
objects in the following positions:
R very close to the rear bumper
R under the rear bumper
R in the area immediately above the tailgate
handle
! Objects not at ground level may appear to
be further away than they actually are, e.g.:
R the bumper of a parked vehicle
R the drawbar of a trailer
R the ball coupling of a trailer tow hitch
R the rear section of an HGV
R a slanted post
Use the guidelines only for orientation.
Approach objects no further than the
bottom-most guideline. Driving systems
189
Driving and parking Z