
Problems with the seat ventilation
Problem Possible causes/consequences and
0001 Solutions
The seat ventilation has
switched off
prematurely or cannot
be switched on. The on-board 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.
Once the battery is sufficiently charged, the seat ventilation will
switch back on automatically. Steering wheel
Important safety notes
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,
steering wheel and mirror and fasten your
seat belt before starting the engine. 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. Adjusting the steering wheel
manually
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.
0002
Release lever
0003 To adjust the steering wheel height
0021 To adjust the steering wheel position
(fore-and-aft adjustment)
X Push release lever 0002down completely.
The steering column is unlocked.
X Adjust the steering wheel to the desired
position.
X Push release lever 0002up 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. Steering wheel
115Seats, steering wheel and mirrors Z

Problems with the steering wheel heating
Problem Possible causes/consequences and
0001 Solutions
The steering wheel
heating has switched
off prematurely or
cannot be switched on. The on-board 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. EASY-ENTRY/EXIT feature
Important safety notes G
WARNING
When the EASY-ENTRY/EXIT feature adjusts
the steering wheel, you and other vehicle
occupants –particularly childre n–could
become trapped. There is a risk of injury.
While the EASY-ENTRY/EXIT feature is
making adjustments, make sure that no one
has any body parts in the sweep of the
steering wheel.
If somebody becomes trapped:
R press one of the memory function position
buttons, or
R move the switch for steering wheel
adjustmen tinthe opposite direction to that
in which the steering wheel is moving.
The adjustment process is stopped. G
WARNING
If children activate the EASY-ENTRY/EXIT
feature, they can become trapped,
particularly when unattended. 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. G
WARNING
If you drive off while the EASY-ENTRY/EXIT
feature is making adjustments, you could lose
control of the vehicle. There is a risk of an
accident. Always wait until the adjustment process is
complete before driving off.
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 281).
Position of the steering wheel when the
EASY-ENTRY/EXIT featurei s active The steering wheel swings upwards when
you:
R
remove the SmartKey from the ignition lock
R open the driver's door with KEYLESS-GO in
position 1
R open the driver's door and the SmartKey is
in position 0or 1in 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 Steering wheel
117Seats, steering wheel and mirrors Z

also automatically moved to the previously
set position.
The last positio
nofthe steering wheel is
stored when you switch off the ignition or
when you store the settingw ith the memory
function (Y page 121).
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
(Y page 281). Mirrors
Rear-view mirror
X
Anti-glare mode: flick anti-glare lever 0002
forwards or back. Exterior mirrors
Adjusting the exterior mirrors G
WARNING
The exterior mirror on the front-passenger
side reduces the size of the image. Visible
objects are actually closer than they appear. This means that you could misjudge the
distance fro
mroad users traveling behind,
e.g. when changing lane. There is a risk of an
accident.
For this reason, always make sure of the
actual distance from the road users traveling
behind by glancing over your shoulder. X
Make sure that the SmartKey is in position
1or 2in the ignition lock.
X Press button 0002for the left-hand exterior
mirror or button 0003for 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 0021as long
as the indicator lamp is lit.
X Press adjustmen tbutton 0021up, 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.
The convex exterio rmirrors provide a larger
field of vision.
The exterior mirrors are heated automatically
if the rear window defroster is switched on
and the outside temperature is low. 118
MirrorsSeats, steering wheel and mirrors

Switching the rear window wiper on/
off
Combination switch
0002
0001 Rear window wiper switch
0005 0007 To wipe with washer fluid
0006 ITo switch on intermittent wiping
000B 0To switch off intermittent wiping
000C 000E To wipe with washer fluid
X Turn the SmartKey to position 1or 2in the
ignition lock (Y page 163).
X Turn switch 0002on the combination switch
to the corresponding position.
When the rear window wiper is switched on,
the icon appears in the instrumen tcluster. Replacing the wiper blades
Important safety notes G
WARNING
If the windshield wipers begin to move while
you are changing the wiper blades, you could
be trapped by the wiper arm. There is a risk
of injury.
Always switch off the windshield wipers and
ignition before changing the wiper blades.
! Neve ropen the hood/tailgate if a wiper
arm has been folded away from the
windshield/rear window.
Never fold a windshield wiper arm without
a wiper blade back onto the windshield/
rear window. Hold the windshield wiper arm firmly when
you change the wiper blade. If you release
the wiper arm without a wiper blade and it
falls onto the windshield/rear window, the
windshield/rear window may be damaged
by the force of the impact.
Mercedes-Benz recommends that you have
the wiper blades changed at
aqualified
specialist workshop.
! To avoid damaging the wiper blades,
make sure that you touch only the wiper
arm of the wiper.
Changing the windshield wiper blades Removing the wiper blades
X
Remove the SmartKey from the ignition
lock.
X Fold the wiper arm away from the
windshield. X
Firmly press release knob 0002and pull wiper
blade 0003upwards from the wiper arm in the
direction of the arrow. Windshiel
dwipers
137Lights and windshield wipers Z

Installing the wiper blades
X
Positio nnew wiper blade 0002in the retainer
on the wiper arm and slide it into place in
the direction of the arrow.
The wiper blade audibly engages.
X Make sure that the wiper blade is seated
correctly.
X Fold the wiper arm back onto the
windshield.
Replacing the rear window wiper blade Removing
awiper blade X
Remove the SmartKey from the ignition
lock.
X Fold wiper arm 0002away from the rear
window until it engages.
X Position wiper blade 0003at a right angle to
wiper arm 0002.
X Hold wiper arm 0002and press wiper
blade 0003in the direction of the arrow until
it releases.
X Remove wiper blade 0003. Installing
awiper blade
X Place new wiper blade 0003onto wiper
arm 0002.
X Hold wiper arm 0002and press wiper
blade 0003in the opposite direction to the
arrow until it engages.
X Make sure that wiper blade 0003is seated
correctly.
X Position wiper blade 0003parallel to wiper
arm 0002.
X Fold wiper arm 0002back onto the rear
window. 138
Windshield wipersLights and windshield wipers

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Read the information on qualified
specialist workshops: (Y page 28).Overview of climate control systems
Important safety notes
Observe the settings recommended on the
following pages. The windows could
otherwise fog up.
To preven tthe windows from fogging up:
R switch off climate control only briefly
R switch on air-recirculation mode only
briefly
R switch on the cooling with air
dehumidification function
R switch on the defrost windshield function
briefly, if required
Climate control regulates the temperature
and the humidity in the vehicle interior and
filters undesirable substances out of the air.
Climate control is only operational when the
engine is running. The system only works
optimally when the side windows and the roof
are closed.
The residual heat function can only be
activated or deactivated with the ignition
switched off (Y page 157).
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the
convenience opening feature (Y page 93).
This will speed up the cooling process and
the desired vehicle interior temperature
will be reached more quickly. i
The integrated filter can filter out most
particles of dust, and completely filters out
pollen. Aclogged filter reduces the amount
of air supplied to the vehicle interior .For
this reason, you should always observe the
interval for replacing the filter, which is
specified in the Maintenance Booklet .As it
depends on environmental conditions, e.g.
heavy air pollution, the interval may be
shorter than stated in the Maintenance
Booklet.
i It is possible that the dehumidification
function of the climate control system may
be activated automatically an hour after the
SmartKey has been removed. The vehicle
is ventilated for 30 minutes. 142
Overview of climate control systemsClimate control

Control panel for dual-zone automatic climate control
USA only
Fron tcontrol panel
0002 Sets the temperature, left (Y page 153)
0003 Defrosts the windshield (Y page 155)
0021 Switches maximum cooling on/off (Y page 155)
0020 Switches cooling with air dehumidificatio non/off (Y page 151)
001E Switches the rea rwindow defroster on/off (Y page 156)
001F Sets the temperature, right (Y page 153)
0013 Activates/deactivates air-recirculation mode (Y page 157)
0014 Sets the air distribution (Y page 154)
0015 Increases the airflow (Y page 154)
0016 Reduces the airflow ( Ypage 154)
0017 Switches climate control on/off (Y page 150)
0018 Sets climate control to automatic (Y page 152) Overview of climate control systems
143Climate control

Canada only
Fron tcontrol panel
0002 Sets the temperature, left (Y page 153)
0003 Defrosts the windshield (Y page 155)
0021 Switches the ZONE function on/off (Y page 155)
0020 Activates/deactivates cooling with air dehumidificatio n(Ypage 151) or activates/
deactivates the residual heatin gfunction ( Ypage 157)
001E Switches the rear window defroste ron/off ( Ypage 156)
001F Sets the temperature, right ( Ypage 153)
0013 Activates/deactivates air-recirculation mode (Y page 157)
0014 Sets the ai rdistribution (Y page 154)
0015 Increases the airflow (Y page 154)
0016 Reduces the airflow ( Ypage 154)
0017 Switches climate control on/off (Y page 150)
0018 Sets climate control to automatic (Y page 152)Rear control panel
0002 Sets rear-compartment climate control to automatic
0003 Switches rear-compartment climate control on/off 144
Overview of climate control systemsClimate control