
Doors
Important safety notes
United Kingdom only: G
WARNING
When the double locks are activated, the
doors can no longer be opened from the
inside. People in the vehicle can no longer get out, e.g. in hazardous situations. There is a
risk of injury.
Therefore, do not leave any people unsuper-
vised in the vehicle, particularly children, eld-
erly people or people in need of special assis-
tance. Do not activate the double lock when
people are in the vehicle.
If the vehicle has been locked from the outside, the double lock function is activated as stand-
ard. It is then not possible to open the doors
from inside the vehicle. You can deactivate the
double lock function by deactivating the interior
motion sensor (Y page 62). The doors can then
be opened from the inside after the vehicle has
been locked from the outside. The anti-theft
alarm system is triggered if the door is opened
from the inside. Switch off the alarm
(Y page 60).
All countries: G
WARNING
If children are left unsupervised in the vehicle, they can:
R open doors and endanger other persons or
road users
R climb out and be injured by the traffic
R operate vehicle equipment and, for exam-
ple, trap themselves.
Children could also set the vehicle in motion, for example by:
R releasing the parking brake
R shifting the automatic transmission out of
park position P
R starting the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the key
with you and lock the vehicle. Never leave children unattended in the vehicle. Always
keep the key out of reach of children.
When a door is opened, the side window on that
side opens slightly. When the door is closed, the side window is raised again.
! The side windows will not open/close if the
battery is discharged or if the side windows
have iced up. It will then not be possible to
close the door. Do not attempt to force the
door to close. You could otherwise damage
the door or the side window. Unlocking and opening the doors
from the inside
United Kingdom only: if the vehicle has been
locked with the key or with KEYLESS-GO, the
double lock function is activated as standard. It
is then not possible to open the doors from
inside the vehicle. You can deactivate the dou-
ble lock function by deactivating the interior
motion sensor (Y page 62). The doors can then
be opened from the inside after the vehicle has been locked from the outside. The anti-theft
alarm system is triggered if the door is opened
from the inside. Switch off the alarm
(Y page 60).
For all countries except the United Kingdom:
You can open a door from inside the vehicle
even if it has been locked. If the vehicle has pre- viously been locked with the key or with KEY-
LESS-GO, opening a door from the inside will
trigger the anti-theft alarm system. Switch off
the alarm (Y page 60). X
Pull door handle ;.
If the door is locked, locking knob :pops up.
The door is unlocked and opens. Doors
69Opening and closing Z

The AMG Performance seat is designed for the
standard three-point seat belt. If you fit another
multipoint seat belt, e.g. sport or racing seat
belts, the restraint system cannot provide the
best level of protection.
Further information about seat belts
(Y page 37).
Adjusting the side bolsters of the seat
cushion and the seat backrest Driver's seat
Side bolsters of the seat cushion
X To narrow: press button :.
X To broaden: press button;.
Side bolsters of the seat backrest X To narrow: press button =.
X To broaden: press button?.
Front-passenger seat Side bolsters of the seat backrest
X To narrow: press button :.
X To broaden: press button;.
i The side bolsters of the front-passenger
seat cushion cannot be adjusted. Switching the seat heating on/off
Switching on/off G
WARNING
If you repeatedly switch on seat heating, the
seat cushion and backrest padding may
become very hot. The health of vehicle occu-
pants with limited temperature sensitivity or a limited ability to react to excessively high
temperatures may be affected or they may
even suffer burn-like injuries. There is a risk of
injury.
Therefore, do not switch on the seat heating
repeatedly. The three red indicator lamps in the button indi-
cate the heating level you have selected.
The system automatically switches down from
level 3to level 2after approximately eight
minutes.
The system automatically switches from level 2
to level 1after approximately ten minutes.
The system automatically switches off approx-
imately 20 minutes after it is set to level 1.
X Select key position 2with the Start/Stop but-
ton.
X To switch on: press button:repeatedly
until the desired heating level is set.
X To switch off: press button:repeatedly
until all the indicator lamps go out.
i If the battery voltage is too low, the seat
heating may switch off. Seats
81Seats, steering wheel and mirrors Z

Problems with the seat heating
Problem
Possible causes/consequences and
M
MSolutions The seat heating has
switched off prematurely
or cannot be switched
on. The on-board voltage is too low because too many electrical consum-
ers are switched on.
X Switch off electrical consumers that you do not need, such as the
rear window heating or interior lighting.
Once the battery is sufficiently charged, the seat heating can be
switched back on manually. Steering wheel
Important safety notes
G
WARNING
You could lose control of the vehicle while
driving if you:
R adjust the driver's seat, 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 mirrors and fasten your seat
belt before starting the engine. G
WARNING
The steering wheel may move unexpectedly if you adjust it while driving. This could cause
you to lose control of the vehicle. There is a
risk of an accident.
Make sure that the steering wheel is locked
before driving off. Never unlock the steering
wheel when the vehicle is in motion. G
WARNING
Children could become trapped by the steer-
ing wheel if they adjust it. There is a risk of
injury.
When leaving the vehicle, always take the key with you and lock the vehicle. Never leave
children unattended in the vehicle.
The electrically adjustable steering wheel can
still be adjusted when there is no key in the igni-
tion lock. Adjusting the steering wheel man-
ually
G
WARNING
The steering wheel may move unexpectedly if you adjust it while driving. This could cause
you to lose control of the vehicle. There is a
risk of an accident.
Make sure that the steering wheel is locked
before driving off. Never unlock the steering
wheel when the vehicle is in motion. :
Release lever
; To adjust the steering wheel height
= To adjust the steering wheel position (fore-
and-aft adjustment)
X Push release lever :down completely.
The steering column is unlocked.
X Adjust the steering wheel to the desired posi-
tion.
X Push release lever :up as far as it will go.
The steering column is locked.
X Check that 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. 82
Steering wheelSeats, steering wheel and mirrors

Folding the exterior mirrors in/out elec-
trically X
Select key position 1or 2with the Start/Stop
button.
X Briefly press button ?.
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 47 km/h, you
can no longer fold in the exterior mirrors.
Resetting the exterior mirrors If the battery has been disconnected or com-
pletely discharged, the exterior mirrors must be
reset. The exterior mirrors will otherwise not
fold in when you select the Automatic Automaticmirror-
mirror-
folding function
folding function function in the multimedia
system.
X Select key position 1using the Start/Stop
button.
X Briefly press button ?.
Folding the exterior mirrors in/out
automatically When the
Automatic
Automatic mirror-folding
mirror-folding func‐
func‐
tion
tion function is activated in the multimedia sys-
tem:
R the exterior mirrors fold in automatically as
soon as you lock the vehicle from the outside
R the exterior mirrors fold out automatically
again as soon as you unlock the vehicle
i If the exterior mirrors have been folded in
manually, they do not fold out. Exterior mirror pushed out of position If an exterior mirror has been pushed out of
position (forwards or backwards), proceed as
follows:
X Press and hold button ?until you hear a click
and the mirror engages audibly into position
(Y page 85).
The mirror housing is engaged again and you
can adjust the exterior mirrors as usual
(Y page 84). Automatic anti-dazzle mirrors
G
WARNING
Electrolyte may escape if the glass of an auto- matic anti-dazzle mirror breaks. Electrolyte is
harmful and causes irritation. It must not
come into contact with your skin, eyes, res-
piratory organs or clothing or be swallowed.
There is a risk of injury.
If you come into contact with electrolyte,
observe the following:
R immediately rinse off electrolyte from your
skin with water.
R immediately and thoroughly rinse electro-
lyte out of eyes using clean water.
R if electrolyte is swallowed, immediately
rinse out your mouth thoroughly. Do not
induce vomiting.
R if electrolyte comes into contact with skin
or eyes or is swallowed, seek medical atten-
tion immediately.
R immediately change out of clothing that has
been in contact with electrolyte.
R if an allergic reaction occurs, seek medical
attention immediately.
The rear-view mirror and the exterior mirror on
the driver's side automatically go into anti-daz-
zle mode if the following conditions are met
simultaneously:
R the ignition is switched on
R incident light from headlamps strikes the sen-
sor in the rear-view mirror
The mirrors do not dip if reverse gear is engaged or if the interior lighting is switched on. Mirrors
85Seats, steering wheel and mirrors Z

Dipped-beam headlamps
G
WARNING
When the light switch is set to Ã, the
dipped-beam headlamps may not be switched on automatically if there is fog, snow or othercauses 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
L.
When the ignition is switched on and the light
switch is in the Lposition, the side lamps
and dipped-beam headlamps are switched on
even if the light sensor does not sense dark
ambient light conditions. This is advantageous
when there is fog or rain.
X To switch on the dipped-beam headlamps:
select key position 2with the Start/Stop but-
ton or start the engine.
X Turn the light switch to the Lposition.
The green Lindicator lamp on the instru-
ment cluster lights up.
Rear fog lamp
The rear fog lamp improves the visibility of your vehicle for the traffic behind in the event of
heavy fog. Please observe the country-specific
laws on the use of rear foglamps.
X To switch on the rear foglamp: select key
position 2with the Start/Stop button or start
the engine.
X Turn the light switch to the LorÃ
position.
X Press the Rbutton.
The yellow Rindicator lamp in the instru-
ment cluster lights up.
X To switch off the rear foglamp:press the
R button.
The yellow Rindicator lamp in the instru-
ment cluster goes out.
Side lamps ! When the battery is discharged heavily, the
side lamps or parking lamps are automatically
switched off to facilitate an engine start.
Always park your vehicle safely and in a well lit area, in accordance with the relevant legal
stipulations. Avoid using the Tside lamps
for periods lasting several hours. Where pos- sible, switch on the right
Xor left W
parking lamp.
X To switch on: turn the light switch to the
T position.
The green Tindicator lamp in the instru-
ment cluster lights up.
Parking lamps
Switching on the parking lamps ensures that the
corresponding side of the vehicle is illuminated.
X To switch on the parking lamps: switch off
the engine with the Start/Stop button.
X Turn the light switch to the W(left-hand
side of the vehicle) or X(right-hand side of
the vehicle) position. Combination switch
:
Main-beam headlamps
; Turn signal, right
= Headlamp flasher
? Turn signal, left
X To indicate briefly: press the combination
switch briefly to the pressure point in the
direction of arrow ;or?.
The corresponding turn signal flashes three
times.
X To indicate: press the combination switch
beyond the pressure point in the direction of
arrow ;or?.
X To switch on the main-beam headlamps:
select key position 2with the Start/Stop but-
ton or start the engine.
X Turn the light switch to the LorÃ
position. Exterior lighting
89Lights and windscreen wipers Z

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 if the sensors are
obscured
Switching Adaptive Highbeam Assist
on/off X
To switch on: turn the light switch to the
à position.
X Press the combination switch beyond the
pressure point in the direction of arrow :.
The _ indicator lamp in the multifunction
display lights up when it is dark and the light
sensor switches on the dipped-beam head-
lamps.
If you are driving at speeds above approx-
imately 25 km/h:
The headlamp range is set automatically
depending on the distance between the vehi-
cle and other road users.
If you are driving at speeds above approx-
imately 30 km/h and no other road users are detected:
The main-beam headlamps are switched on
automatically. The Kindicator lamp in the
instrument cluster also lights up.
If you are driving at speeds below approx-
imately 25 km/h or other road users are
detected or the roads are adequately lit:
The main-beam headlamps are switched off
automatically. The Kindicator lamp in the
instrument cluster goes out. The _indi-
cator lamp in the multifunction display
remains lit.
X To switch off:move the combination switch
back to its normal position or move the light
switch to another position.
The _ indicator lamp in the instrument
cluster goes out. Headlamps misted up on the inside
Certain climatic and physical conditions may
cause moisture to form in the headlamp. This
moisture does not affect the functionality of the headlamp. Interior lighting
Overview
:
u Activates/deactivates luggage com-
partment lighting
; | Switches the automatic interior light-
ing control on or off
= p Switches the right-hand reading lamp
on/off
? c Activates/deactivates interior lighting
A p Switches the left-hand reading lamp
on/off Interior lighting control
General notes In order to prevent the vehicle's battery from
discharging, the interior lighting functions are
automatically deactivated after some time
except for when the Start/Stop button is in
position
2.
Automatic interior lighting control X
To switch on or off: press the|button.
When the automatic interior lighting control is
switched on, the button is flush with the over- head control panel.
The interior lighting automatically switches on if
you:
R unlock the vehicle
R open a door
R switch off the engine with the Start/Stop but-
ton
The interior lighting is activated for a short time when the engine is switched off with the Start/
Stop button. This delayed switch-off can be Interior lighting
91Lights and windscreen wipers Z

Rear window heating
General notes The rear window heating has a high current
draw. You should therefore switch it off as soon
as the window is clear. It otherwise switches off automatically after several minutes.
If the battery voltage is too low, the rear window
heating may switch off. Switching on/off X
Select key position 2with the Start/Stop but-
ton (Y page 103).
X Press the ¤rocker switch up or down.
The indicator lamp above the ¤rocker
switch lights up or goes out.
Problems with the rear window heating Problem
Possible causes/consequences and
M MSolutions The rear window heating
has switched off prema-
turely or cannot be acti-
vated. The battery has not been sufficiently charged.
X Switch off any consumers that are not required, e.g. reading lamps,
interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window heating
can be activated again. Activating/deactivating air-recircula-
tion mode
General notes You can also temporarily deactivate the flow of
fresh air manually if unpleasant odours are
entering the vehicle from outside. The air
already inside the vehicle will then be recircula-
ted.
If you activate air-recirculation mode, the win-
dows can mist up more quickly, in particular at
low temperatures. Only use air-recirculation
mode briefly to prevent the windows misting up.
Activating/deactivating X
Select key position 2with the Start/Stop but-
ton (Y page 103).
X To activate: press thegrocker switch up
or down.
The indicator lamp above the grocker
switch lights up.
Air-recirculation mode is activated automati-
cally: R at high outside temperatures
R in a tunnel (vehicles with a navigation system
only)
The indicator lamp above the grocker
switch is not lit when automatic air-recirculation mode is activated. Outside air is added after
approximately 30 minutes.
X To deactivate:press the grocker switch
up or down.
The indicator lamp above the grocker
switch goes out.
Air-recirculation mode is deactivated automati-
cally:
R after approximately five minutes at outside
temperatures below approximately 5 †
R after approximately five minutes if "Cooling
with air dehumidification" is deactivated
R after approximately 30 minutes at outside
temperatures above approximately 5 †if the
"Cooling with air dehumidification" function is activated Convenience opening/closing using
the air-recirculation button
G
WARNING
When using convenience closing, you could
become trapped within the sweep of the clos- ing window. There is a risk of injury.
Monitor the entire closing procedure when
using convenience closing. When closing, Operating the climate control system
99Climate control
Z

Hill start assist is not active if:
R you are pulling away on a level road or a
downhill gradient
R the transmission is in position N
R the electric parking brake is applied
R ESP ®
is malfunctioning ECO start/stop function
Introduction The ECO start/stop function switches the
engine off automatically if the vehicle is stopped
under certain conditions.
When the vehicle pulls away again, the engine
starts automatically. The ECO start/stop func-
tion thereby helps you to reduce the fuel con-
sumption and emissions of your vehicle.
Important safety notes G
WARNING
If the engine is switched off automatically and you exit the vehicle, the engine is restarted
automatically. The vehicle may begin moving. There is a risk of accident and injury.
If you wish to exit the vehicle, always turn off
the ignition and secure the vehicle against
rolling away.
General notes :
ECO start/stop display
If the è ECO symbol is shown in green in the
multifunction display, the ECO start/stop func-
tion switches the engine off automatically once
the vehicle stops moving.
The ECO start/stop function is available only in
drive program C. The ECO start/stop function is switched on
whenever you restart the engine using the key or the Start/Stop button. This is the case if:
R the ignition was switched off for more than
four hours or
R the ECO start/stop function had been
switched on before the engine was switched
off
If the ECO start/stop function has been man-
ually deactivated (Y page 106) or a malfunction
has caused the system to be deactivated, the
è symbol is not displayed.
Automatic engine switch-off The ECO start/stop function switches the
engine off automatically if:
R the ECO start/stop function is activated
(Y page 106) and
R you brake the vehicle to a standstill in trans-
mission position D
The ECO start/stop function is operational and
the è ECO symbol is displayed in green in the
multifunction display if:
R the indicator lamp in the ECO button is lit
green
R the outside temperature and the atmospheric
air pressure are within a range that is suitable for the system
R the engine and the transmission are at a suf-
ficient temperature for the ECO start/stop
function
R the set temperature for the vehicle interior
has been reached
R the battery is sufficiently charged
R the system does not detect moisture on the
windscreen when the air-conditioning system
is switched on
R the bonnet is closed
R the driver's door is closed and the driver's
seat belt is fastened
If the conditions for automatic engine switch-off are not all fulfilled, the èECO symbol is
shown in yellow.
All the vehicle's systems remain active when the
engine is switched off automatically.
The HOLD function can also be activated if the
engine has been switched off automatically. It is then not necessary to continue applying the
brakes during the automatic stop phase. When
you depress the accelerator pedal, the engine Driving
105Driving and parking Z