2012 MERCEDES-BENZ E-CLASS COUPE engine

Problem Possible causes/consequences and
M Solutions
You have lost the emer-
gency key element. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. The engine cannot be
started using the key. the on-board voltage is too low.
X
Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
X Check the starter battery and charge it if necessary
(Y page 330).
or
X Jump-start the vehicle (Y page 331).
or
X Consult a qualified specialist workshop. Only vehicles without a
DIRECT SELECT lever:
The engine cannot be
started using the key. The steering lock is mechanically blocked.
X
Remove the key and reinsert it into the ignition lock. While doing
this, turn the steering wheel in both directions. The engine cannot be
started using KEYLESS-
GO. The key is in the
vehicle. Ad
oor is open. Therefore, the key cannot be detected as easily.
X Close the door and try to start the vehicle again. There is interference from a powerful source of radio waves.
X
Start your vehicle with the key in the ignition lock. Doors
Important safety notes
G
WARNING
Only for the United Kingdom: if the vehicle
has been locked with the key or with KEY-
LESS-GO, the double lock function is activa-
ted as standard. It is then not possible to open
the doors from inside the vehicle.
Therefore, do not leave any people behind in
the vehicle, particularly children, elderly peo-
ple or people requiring special assistance. As
a result, they may not be able to free them-
selves in the event of an emergency. They
could be seriously or even fatally injured by
prolonged exposure to extremely high or low
temperatures, for example. In this case, res- cuing people from outside the vehicle is diffi-
cult.
Deactivate the interior motion sensor before
you lock the vehicle. The doors can then be
opened from the inside after the vehicle has
been locked from the outside.
G
WARNING
If children are left unsupervised in the vehicle,
they could:
R open a door from inside the vehicle at any
time, even if it has been locked
R start the vehicle using akey which has been
left in the vehicle
R release the parking brake 82
DoorsOpening and closing

X
Chec kwhether the locking knob on the
front-passenger door is still visible. Press
down the locking knob by hand, if neces-
sary (Y page 83).
X Close the driver's door.
X Take the emergency key element out of the
key (Y page 78).
X Insert the emergency key element into the
lock of the driver's door as far as it will go. 1
Locking
X Turn the emergency key element clockwise
as far as it will go to position 1.
i On right-hand-drive vehicles, turn the
emergency key element anti-clockwise.
X Turn the emergency key element back and
remove it.
X Make sure that the doors and the boot lid
are locked.
X Insert the emergency key element into the
key. Boot
Important safety notes
G
WARNING
Exhaust fumes could enter the vehicle interior
if the engine is running and the boot lid is
open. This could poison you. Therefore, you
should make sure that the boot lid is always
closed when the engine is running. !
The boot lid swings upwards when
opened. Therefore, make sure that there is
sufficient clearance above the boot lid.
i Opening dimensions of the boot lid
(Y page 378).
Do not leave the key in the boot. You could
otherwise lock yourself out.
The boot lid can be:
R opened and closed manually from outside
R opened automatically from outside
R opened automatically from inside
R locked separately
R unlocked with the emergency key element Opening/closing from the outside
To open X
Press the %button on the key.
X Pull handle :.
X Raise the boot lid.
To close G
WARNING
Make sure that nobody can become trapped
when closing the boot lid. Boot
85Opening and closing Z

G
WARNING
Childre nmay injure themselves if they open
or close the side windows.
Never leave childre nunsupervised in the vehi-
cle .Always take the key with you when leaving
the vehicle, even if you are only leaving it for
a short time. G
WARNING
Do not leave children unsupervised in the
vehicle, even if they are secured in a child
restraint system. The children could:
R be seriously or even fatally injured on parts
of the vehicle
R be seriously or even fatally injured by pro-
longed exposure to extremely high or
extremely low temperatures
If children open a door, they could:
R seriously or even fatally injure other people
R get out of the vehicle and injure them-
selves, or be seriously or even fatally
injured by a passing vehicle
Activate the override feature if children are
travelling in the vehicle. They could otherwise
open side windows while the vehicle is in
motion and thereby injure themselves or oth-
ers. Opening and closing the side win-
dows
The switches for all side windows are located
on the driver's door. There is also a switch on
the front-passenge rdoor as well as on the
doors in the rear compartment on the left and
right-hand sides for the respective side win-
dow.
The switches on the driver's door take prec-
edence. :
Front left
; Front right
= Rear right
? Rear left
X Turn the key to position 1or 2in the ignition
lock.
X To open: press the corresponding switch.
X To close: pull the corresponding switch.
i You can use the automatic operation fea-
ture when opening or closing the front side
windows. To do so, press or pull the switch
to just beyond the point of resistance in the
relevant direction .You can stop automatic
operation by pressing or pulling again.
i You can continue to operate the side win-
dows after switching off the engine or
removing the key. This function remains
active for five minutes or until the driver's
or front-passenger door is opened.
i The side windows cannot be operated
from the rear when the override feature for
the side windows is activated (Y page 64). Opening and closing all side windows
(Cabriolet)
Using the switch on the centre console You can use the button on the centre console
to close all side windows simultaneously.
X
Open the cover on the lower centre con-
sole.
The switch for all side windows is under the
cover. 88
Side windowsOpening and closing

i
The side windows close if you keep on
pressing the soft-top switch. Opening and closing with the key
Important safety notes G
WARNING
Make sure nobody can be trapped or injured
by moving parts such as the soft-top linkage
or soft-top compartment cover when opening
or closing the soft top.
If there is a risk of entrapment, immediately
release the %or& button on the key.
The soft-top mechanism stops immediately.
Opening and closing The key must be close to the driver's door
handle.
X Point the tip of the key at the driver's door
handle.
X To open: press and hold the %button
on the key until the soft top is fully opened.
The Top in operation message appears
in the multifunction display .The seat ven-
tilation is switched on. The rear side win-
dows open.
X To close: press and hold the &button
on the key until the soft top is fully closed.
The Top in operation message appears
in the multifunction display. The soft top
and the side windows close. Closing the soft top manually
Important safety notes G
WARNING
Remove wristwatches and any jewellery such
as rings or bracelets. You could otherwise get
caught, injured and damage the vehicle.
Always grip the soft top at the indicated grip-
ping points when closing the soft top man-
ually. You could otherwise be injured. If the soft top cannot be closed automatically,
check the following points:
R
Is the boot separator engaged
(Y page 99)?
R Are the head restraints on the rear bench
seats extended?
R Is the boot lid closed?
R Is the on-board voltage sufficient?
Start the engine if necessary.
If automatic operation still does not work, the
soft top can be closed manually.
To carry out this work, you will need the assis-
tance of another person.
i Closing the soft top manually is a com-
plex, technically demanding process which
requires a great deal of force. Only close
the soft top manually in extreme emergen-
cies. Preferably, contact a qualified spe-
cialist workshop.
Closing the soft top X
Apply the parking brake.
X Open the side windows.
X Lower the head restraints automatically or
manually, see the Digital Owner's Manual,
keyword "Head restraint".
X Remove the key from the ignition lock.
X Open the boot.
X Take the two straps out of the vehicle tool
kit (Y page 323).
X Take the Allen key out of the Owner's Man-
ual wallet and keep it with you. Example: left trim in the boot94
Soft top (Cabriolet)Opening and closing

X
When installing the draught stop, use lat-
eral brackets :.
Observe the manufacturer's installation
instructions. AIRCAP
Important safety notes G
WARNING
When extending and retracting AIRCAP, make
sure that no one can become trapped. If there
is a risk of entrapment, press the button again
to retract AIRCAP again.
With AIRCAP, four people can travel comfort-
ably with the soft top open. AIRCAP reduces
the draught for the driver and passengers in
both the front and the rear compartment in a
vehicle with the soft top down.
You can open or close AIRCAP either when
the vehicle is stationary or when driving up to
a speed of 160 km/h.
AIRCAP has the following components:
R a wind deflector between the windscreen
and the soft top
R an AIRCAP draught stop between the two
head restraints on the rear bench seat
Extending AIRCAP X
Turn the key to position 2in the ignition
lock.
X Open the cover on the lower centre con-
sole.
X Press AIRCAP button :.
The two indicato rlamps on the AIRCAP but-
to nl ight up. Wind deflector
;extends. The head restraints on the rear bench seats
and AIRCAP draught stop
=move to the
centre position simultaneously.
When a seat belt in the rear compartment is
fastened, the head restraints on the rear
bench seats and AIRCAP draught stop =
move to the upper position.
i If you park your vehicle with the soft top
down and remove the key, the wind deflec-
tor and the head restraints in the rear com-
partment retract automatically. When you
restart your engine after having been
parked, the wind deflector and the head
restraints in the rear compartment extend
again automatically. 100
Soft top (Cabriolet)Opening and closing

R
combination switch (Y page 126)
R on-board compute r(Ypage 243)
Light switch Operation
1W
Left-hand parking lamps
2X Right-hand parking lamps
3T Side lamps, licence plate and instru-
ment cluster lighting
4Ã Automatic headlamp mode, control-
led by the light sensor
5L Dipped-beam/main-beam head-
lamps
BR Rear foglamp
CN Foglamps (only vehicles with front
foglamps).
If you hear a warning tone when you leave the
vehicle, the lights may still be switched on.
X Turn the light switch to Ã.
The exterior lighting (except the side lamps/
parking lamps) switches off automatically if
you:
R remove the key from the ignition lock
R open the driver's door with the key in posi-
tion 0
Automatic headlamp mode G
WARNING
If the light switch is set to Ãand it is foggy,
snowing or there is poor visibility, the dipped-
beam headlamps will not come on automati- cally. This could endanger you and others. In
such situations turn the light switch to
L.
The automatic headlamp feature is only an
aid. The driver is responsible for the vehicle's
lighting at all times. 1W
Left-hand parking lamps
2X Right-hand parking lamps
3T Side lamps, licence plate and instru-
ment cluster lighting
4Ã Automatic headlamp mode, control-
led by the light sensor
5L Dipped-beam/main-beam head-
lamps
BR Rear foglamp
CN Foglamps (only vehicles with front
foglamps).
à is the preferred light switch setting. The
light setting is automatically selected accord-
ing to the brightness of the ambient light
(exception :poor visibility due to weather con-
ditions such as fog, snow or spray):
R Key in position 1in the ignition lock: the
side lamps are switched on or off automat-
ically depending on the brightness of the
ambient light.
R With the engine running: if you have acti-
vated the daytime driving lights function via
the on-board computer, the daytime driving
lights or the dipped-beam headlamps and
side lamps are switched on or off automat-
ically depending on the brightness of the
ambient light. Exterior lighting
123Lights and windscreen wipers Z

X
To switch on automatic headlamp
mode: turn the light switch to Ã.
The daytime driving lights improve the visibil-
ity of your vehicle during the day. Here, the
daytime driving lights functio nmust be
switched on via the on-board computer
(Y page 243).
When the dipped-beam headlamps are
switched on, the green Lindicator lamp
in the instrumen tcluster lights up and the
daytime driving lights go out or are dimmed.
Dipped-beam headlamps G
WARNING
If the light switch is set to Ãand it is foggy,
snowing or there is poor visibility, the dipped-
beam headlamps will not come on automati-
cally. This could endanger you and others. In
such situations tur nthe light switch to L.
The automatic headlamp feature is only an
aid. The driver is responsible for the vehicle's
lighting at all times. 1W
Left-hand parking lamps
2X Right-hand parking lamps
3T Side lamps, licence plate and instru-
ment cluster lighting
4Ã Automatic headlamp mode, control-
led by the light sensor
5L Dipped-beam/main-beam head-
lamps
BR Rear foglamp
CN Foglamps (only vehicles with front
foglamps). Even if the light sensor does not detect that
is dark, the side lamps and dipped-beam
headlamps switch on when the key is inserted
into the ignition lock and the light switch is
set to the
Lposition. This is a particularly
useful function in the event of rain and fog.
X To switch on the dipped-beam head-
lamps: turn the key in the ignition lock to
position 2or start the engine.
X Turn the light switch to L.
The green Lindicator lamp in the instru-
ment cluster lights up.
Foglamps 1W
Left-hand parking lamps
2X Right-hand parking lamps
3T Side lamps, licence plate and instru-
ment cluster lighting
4Ã Automatic headlamp mode, control-
led by the light sensor
5L Dipped-beam/main-beam head-
lamps
BR Rear foglamp
CN Foglamps (only vehicles with front
foglamps).
In poor visibility due to fog or precipitation,
the foglamps improve your visibility and the
visibility of your vehicle. They can be used
together with the side lamps or with the side
lamps and dipped-beamh eadamps.
X To switch on the foglamps: turn the key
in the ignition lock to position 2or start the
engine.
X Turn the light switch to LorÃ. 124
Exterior lightingLights and windscreen wipers

X
Press the Nbutton.
The green Nindicator lamp in the instru-
ment cluster lights up.
X To switch off the front foglamps: press
the N button.
The green Nindicator lamp in the instru-
ment cluster goes out.
Only vehicles with frontf oglamps are equip-
ped with the "Foglamp" function; information
on the foglamp function for vehicles with
Intelligent Light System (Y page 129).
Rear foglamp 1W
Left-hand parking lamps
2X Right-hand parking lamps
3T Side lamps, licence plate and instru-
ment cluster lighting
4Ã Automatic headlamp mode, control-
led by the light sensor
5L Dipped-beam/main-beam head-
lamps
BR Rear foglamp
CN Foglamps (only vehicles with front
foglamps).
The rear foglamp improves visibility of your
vehicle for the traffic behind in the event of
heavy fog. Please take note of the country-
specific regulations for the use of rear fog-
lamps.
X To switch on the rear foglamp: turn the
key in the ignition lock to position 2or start
the engine.
X Turn the light switch to LorÃ. X
Press the Rbutton.
The yellow Rindicator lamp in the
instrument cluster lights up.
X To switch off the rear foglamp: press the
R button.
The yellow Rindicator lamp in the
instrument cluster goes out.
Side lamps
! If the battery has been excessively dis-
charged, the side lamps or parking lamps
are automatically switched off to enable
the next engine start.A lways park your
vehicle safely and sufficiently lit according
to legal standards. Avoid the continuous
use of the Tside lamps for several
hours. If possible, switch on the Xright
or the Wleft parking lamp. 1W
Left-hand parking lamps
2X Right-hand parking lamps
3T Side lamps, licence plate and instru-
mentcluster lighting
4Ã Automatic headlamp mode, control-
led by the light sensor
5L Dipped-beam/main-beam head-
lamps
BR Rear foglamp
CN Foglamps (only vehicles with front
foglamps).
X To switch on: turn light switch to T.
The green Tindicator lamp in the instru-
men tcluster lights up. Exterior lighting
125Lights and windscreen wipers Z