key MERCEDES-BENZ E-CLASS CABRIOLET 2015 Workshop Manual

Problems with the steering wheel heating
Problem
Possible causes/consequences and
M
MSolutions The steering wheel heat-
ing has switched itself
off prematurely or can-
not 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 steering wheel heating
will switch back on automatically. 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 children – could
become trapped. There is a risk of injury.
While the EASY-ENTRY/EXIT feature is mak-
ing adjustments, make sure that no one has
any body parts in the sweep of the steering
wheel.
Move the steering wheel adjustment lever if
there is a risk of entrapment by the steering
wheel. The adjustment process is stopped.
Vehicles with a memory function: if there is a
risk of becoming trapped by the steering wheel, you can also press one of the memory function
position buttons. The adjustment process is
stopped. G
WARNING
If children activate the EASY-ENTRY/EXIT fea- ture, they can become trapped, particularly
when unattended. 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. 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 227).
Position of the steering wheel when the EASY-ENTRY/EXIT feature is active The steering wheel tilts upwards if you:
R remove the key from the ignition lock
R with KEYLESS-GO: open the driver's door;
KEYLESS-GO must be in position 1
R with the key: open the driver's door; the key
must be in position 0or 1in the ignition lock
(Y page 139)
i The steering wheel only moves upwards if it
has not already reached the upper stop.
Position of the steering wheel for driv-
ing The steering wheel is moved to the previously
set position if:
R the driver's door is closed and
R with KEYLESS-GO: you press the Start/Stop
button once
or
R with the key: you insert the key into the igni-
tion lock
If you close the driver's door with the key inser-
ted in the ignition lock, the steering wheel is
automatically moved to the previously set posi- tion. Steering wheel
109Seats, steering wheel and mirrors Z

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 112).
Crash-responsive EASY-EXIT feature If the crash-responsive EASY-EXIT feature is trig-
gered in an accident, the steering column will
move upwards when the driver's door is opened. This occurs irrespective of the position of the
key 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 227). Mirrors
Rear-view mirror
X
Anti-dazzle mode: pivot anti-dazzle
switch :forwards or back. Exterior mirrors
Adjusting the exterior mirrors 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 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 look over your
shoulder to determine the actual distance
from road users driving behind you. X
Turn the key to position 1or 2in the ignition
(Y page 139).
X Press button :for the left-hand exterior mir-
ror or button ;for the right-hand exterior
mirror.
The indicator lamp in the corresponding but-
ton lights up in red.
The indicator lamp goes out again after some
time. You can adjust the selected mirror using
adjustment button =as long as the indicator
lamp is lit.
X Press adjustment button =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 condi-
tions.
The convex exterior mirrors provide a larger field of vision.
After the engine has been started, the exterior
mirrors are automatically heated if the rear win-
dow heating is switched on and the outside tem- perature is low. Heating takes a maximum of tenminutes. 110
MirrorsSeats, steering wheel and mirrors

i
The exterior mirrors can also be heated
manually by switching on the rear window
heating.
Folding the exterior mirrors in/out elec- trically X
Turn the key to position 1or 2in the ignition
(Y page 139).
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 "Fold in mirrors whenlocking" function in the on-board computer
(Y page 227).
X Turn the key to position 1in the ignition lock
(Y page 139).
X Briefly press button :.
Folding the exterior mirrors in/out
automatically If the "Fold in mirrors when locking" function is
activated in the on-board computer
(Y page 227):
R the exterior mirrors fold in automatically as
soon as you lock the vehicle from the outside
R the exterior mirrors fold out again automati-
cally 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 pushed out of position If an exterior mirror has been pushed out of
position (forwards or backwards), proceed as
follows:
X Vehicles without electrically folding exte-
rior mirrors: manually move the exterior mir-
ror into the correct position.
X Vehicles with electrically folding exterior
mirrors: press and hold mirror-folding button
until you hear a click and the mirror engages
in position audibly (Y page 111).
The mirror housing is engaged again and you
can adjust the exterior mirrors as usual
(Y page 110). 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. Mir
rors
111Seats, ste ering wheel and mirrors Z

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 and
R incident light from headlamps strikes the sen-
sor in the rear-view mirror
The mirrors do not dip if reverse gear is engaged. Parking position of the exterior mirror
on the front-passenger side
Setting and storing the parking position You can set the front-passenger side exterior
mirror so that you can see the rear wheel on that side as soon as you engage reverse gear. You
can store this position.
Using reverse gear :
Button for the exterior mirror on the driver's
side
; Button for the exterior mirror on the front-
passenger side
= Adjustment button
? Memory button M
X Park the vehicle and turn the key to position 2
in the ignition lock (Y page 139).
X Press button ;for the exterior mirror on the
front-passenger side.
X Engage reverse gear.
The exterior mirror on the front-passenger
side moves to the preset parking position.
X Use adjustment button =to adjust the exte-
rior mirror to a position that allows you to see
the rear wheel and the kerb.
The parking position is stored. i
If you shift the transmission to another posi-
tion, the exterior mirror on the front-
passenger side returns to the driving position.
Using the memory button You can store the parking position of the exte-
rior mirror on the front-passenger side using
memory button
M?. The reverse gear must not
be engaged.
X Turn the key to position 2in the ignition lock
(Y page 139).
X With the exterior mirror on the front-
passenger side activated, use adjustment
button =to adjust the exterior mirror. The
rear wheel and the kerb should be visible in
the exterior mirror.
X Press memory button M? and one of the
arrows on adjustment button =within three
seconds.
The parking position is stored if the exterior
mirror does not move.
X If the exterior mirror moves out of position,
repeat the steps.
Calling up a stored parking position X
Turn the key to position 2in the ignition lock
(Y page 139).
X Adjust the exterior mirror on the front-
passenger side using button ;.
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 15 km/h
R if you press button :for the exterior mirror
on the driver's side Memory function
Storing settings
G
WARNING
If you use the memory function on the driver's side while driving, the adjustments could
cause you to lose control of the vehicle. There
is a risk of an accident. 112
Memory functionSeats, steering wheel and mirrors

Only use the memory function on the driver's
side while the vehicle is stationary. G
WARNING
If children activate the memory function, they
could become trapped, especially if they are
unattended. 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. G
WARNING
When the memory function adjusts the seat or steering wheel, you and other vehicle occu-
pants – particularly children – could become
trapped. There is a risk of injury.
While the memory function is making adjust-
ments, make sure that no one has any body
parts in the sweep of the seat or steering
wheel. If somebody becomes trapped, imme-
diately release the memory function position
button. The adjustment process is stopped.
The memory function can be used at any time,
e.g. even when the key isn't in the ignition lock.
With the memory function, you can store up to
three different settings, e.g. for three different
people. X
Adjust the seat (Y page 101).
X On the driver's side, adjust the steering wheel
(Y page 107) and the exterior mirrors
(Y page 110).
X Press memory button Mand then press stor-
age position button 1,2or 3within three sec-
onds.
The settings are stored in the selected preset position. A tone sounds when the settings
have been completed. Calling up a stored setting
X Press and hold the relevant storage position
button 1,2or 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 stored position button. Memory function
113Seats, steering wheel and mirrors Z

Exterior lighting
General notes
For reasons of safety, Mercedes-Benz recom-
mends that you drive with the lights switched on even during the daytime. Therefore, your vehicle
is equipped with special daytime driving lamps.
In some countries, operation of the headlamps
varies due to legal requirements and self-
imposed obligations. Driving abroad
General notes If your journey takes you to countries where
vehicles are driven on the opposite side of the
road to the country in which the vehicle is reg-
istered, your headlamps must be switched to
symmetrical dipped beam as soon as possible
after crossing the border (exception: vehicles
with static LED headlamps). This prevents
oncoming traffic from being dazzled. Symmetri-
cal lights do not illuminate as large an area of the edge of the carriageway.
Vehicles with static LED headlamps It is not necessary to switch your headlamps to
symmetrical dipped beam when driving in coun-
tries where vehicles are driven on the opposite
side of the road to the country in which the vehi- cle is registered. Legal requirements are fulfilled
without switching the headlamps to symmetri-
cal dipped beam.
Vehicles with Intelligent Light System X
Before crossing the border, set the head-
lamps to symmetrical dipped beam and after
returning back to asymmetrical dipped beam via the "Dipped-beam headlamps for driving
on the right/left" function in the on-board
computer (Y page 224).
If the headlamps are converted to symmetrical
dipped beam, the "motorway mode" and "exten- ded range foglamps" functions are not available. Setting the exterior lighting
Setting options Exterior lighting can be set by:
R using the light switch
R using the combination switch (Y page 116)
R using the on-board computer (Y page 224)
Light switch Operation
1
W
Left-hand parking lamps
2 X
Right-hand parking lamps
3 T
Side lamps, licence plate and instru-
ment cluster lighting
4 Ã
Automatic headlamp mode, controlled
by the light sensor
5 L
Dipped-beam/main-beam headlamps
B R
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 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 0in the ignition lock
Automatic headlamp mode 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. 114
Exterior lightingLights and windscreen wipers

In such situations, turn the light switch to
L.
The automatic headlamp feature is only an aid.
The driver is responsible for the vehicle lighting at all times.
à is the preferred light switch setting. The
light setting is automatically selected according
to the brightness of the ambient light (excep-
tion: poor visibility due to weather conditions
such as fog, snow or spray):
R Key in position 1in the ignition lock: the side
lamps are switched on or off automatically
depending on the brightness of the ambient
light.
R With the engine running: if you have switched
on the Daytime
Daytime driving drivinglights
lights function in
the on-board computer, the daytime driving
lights or the side lamps and dipped-beam
headlamps are switched on or off automati-
cally depending on the brightness of the ambi- ent light.
X To switch on automatic headlamp mode:
turn the light switch to
Ã.
The daytime driving lights improve the detecta-
bility of your vehicle during the day. Here, the
daytime driving lights function must be switched
on via the on-board computer (Y page 224).
When the side lamps and dipped-beam head-
lamps are switched on, the green T(side
lamps) and L(dipped-beam headlamps)
indicator lamps in the instrument cluster light
up.
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:
turn the key in the ignition lock to position 2
or start the engine.
X Turn the light switch to L.
The green Lindicator lamp in the instru-
ment cluster lights up.
Rear fog lamp The rear foglamp improves the visibility of your
vehicle in heavy fog for the following traffic.
Please observe the country-specific laws on the
use of rear foglamps.
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 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 ! If the battery has been discharged to a low
charge level, the side lamps or parking lamps
are automatically switched off to enable the
next engine start. Always leave your vehicle in
a safe position and adequately lit in accord-
ance with traffic regulations. Avoid using the
side lamps Tfor a period of several hours.
If possible, switch on the right Xor left
W parking lamp.
X To switch on: turn the light switch to T.
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: the key
should not be in the ignition lock or it should
be in position 0.
X Turn the light switch to W(left-hand side of
the vehicle) or X(right-hand side of the
vehicle). Exterior lighting
115Lights and windscreen wipers Z

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
manually:
turn the key to position 2in the
ignition lock or start the engine.
X Vehicles without Adaptive Highbeam Assist
Plus: turn the light switch to LorÃ.
X Vehicles with Adaptive Highbeam Assist Plus:
turn the light switch to L.
X Press the combination switch beyond the
pressure point in the direction of arrow :.
In the Ãposition, the main-beam head-
lamps are only switched on when it is dark and
the engine is running.
The blue Kindicator lamp in the instru-
ment cluster lights up when the main-beam
headlamps are switched on.
X To switch off the main-beam headlamps:
move the combination switch back to its nor- mal position.
The blue Kindicator lamp in the instru-
ment cluster goes out.
Vehicles with Adaptive Highbeam Assist
Plus: if Adaptive Highbeam Assist Plus is acti-
vated, it automatically controls activation and
deactivation of the main-beam headlamps
(Y page 117). Hazard warning lamps
X
To switch on the hazard warning lamps:
press button :.
All turn signals flash. If you now switch on a
turn signal using the combination switch, only the turn signal lamp on the corresponding
side of the vehicle will flash.
X To switch off the hazard warning lamps:
press button :.
The hazard warning lamps switch on automati-
cally if:
R an airbag is deployed or
R the vehicle decelerates rapidly from a speed
of above 70 km/h and comes to a standstill
The hazard warning lamps switch off automati-
cally if the vehicle reaches a speed of above
10 km/h again after a full brake application.
i The hazard warning lamps continue to oper-
ate even if the ignition is switched off. Intelligent Light System
General notes The Intelligent Light System is a system that
adjusts the headlamps automatically to suit the
prevailing driving and weather conditions. It
offers advanced functions for improved illumi-
nation of the road surface, e.g. depending on the vehicle speed or weather conditions. The sys-
tem includes the active light function, corneringlight function, motorway mode and extended
range foglamps. The system is only active when it is dark.
You can activate or deactivate the "Intelligent
Light System" function using the on-board com-
puter (Y page 224). 116
Exterior lightingLights and windscreen wipers

Adaptive Highbeam Assist Plus cannot take into
account road, weather or traffic conditions.
Adaptive Highbeam Assist Plus is only an aid.
You are responsible for adjusting the vehicle's
lighting to the prevailing light, visibility and traf-
fic conditions.
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
Plus on/off X
To switch on: turn the light switch to Ã.
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.
At speeds above approx. 25 km/h: the
headlamp range is automatically controlled
according to the distance to other road users.
At speeds above approx. 30 km/h:
R If no other road users are detected, the
main-beam headlamps are automatically
switched on.
R If other road users are detected, the partial
main-beam headlamps are automatically
switched on.
The K indicator lamp in the instrument
cluster also lights up.
At speeds below approx. 25 km/h or
when there is sufficient street lighting:
R The partial main-beam headlamps are
switched off automatically.
R The main-beam headlamps are switched off
automatically.
The K indicator lamp in the instrument
cluster goes out. The _indicator 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 multifunction
display 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 of interior lighting
:
u Switches the interior lighting on/off
; | Switches the automatic interior light-
ing control on/off
= p Switches the right-hand reading lamp
on/off
? c Switches the front interior lighting on/
off
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 key is in position 2in the
ignition lock.
Automatic interior lighting control X
To switch on/off: press the|button.
When the automatic interior lighting control is
switched on, the button is flush with the over- head control panel. 118
Interior lightingLights and
windscreen wipers

The interior lighting automatically switches on if
you:
R unlock the vehicle
R open a door
R remove the key from the ignition lock
The interior lighting is activated for a short time
when the key is removed from the ignition lock.
You can activate this delayed switch-off using
the on-board computer (Y page 225).Replacing bulbs
Important safety notes
G
WARNING
Bulbs, lamps and plug connectors can
become very hot during use. When replacing a bulb, you could burn yourself on these com-
ponents. There is a risk of injury.
Allow these components to cool down before replacing the bulb.
Vehicles with static LED headlamps:
Do not use a bulb that has been dropped or if its glass tube has been scratched.
The bulb may explode if:
R you touch it
R it is hot
R you drop it
R you scratch it
Only operate bulbs in enclosed lamps designed
for that purpose. Only fit spare bulbs of the same
type and the specified voltage.
Marks on the glass tube reduce the service life
of the bulbs. Do not touch the glass tube with
your bare hands. If necessary, clean the glass
tube when cold with alcohol or spirit and rub it
off with a lint-free cloth.
Protect bulbs from moisture during operation.
Do not allow bulbs to come into contact with
liquids.
Only replace the bulbs listed (Y page 119).
Have the bulbs that you cannot replace yourself
replaced at a qualified specialist workshop.
If you require assistance replacing bulbs, con-
sult a qualified specialist workshop.
If the new bulb still does not light up, consult a
qualified specialist workshop. Headlamps and lights are an important aspect of
vehicle safety. You must therefore make sure
that these function correctly at all times. Have
the headlamp setting checked regularly.
Vehicles with Intelligent Light System
The front and rear light clusters of your vehicle
are equipped with LED light bulbs. Do not
replace the bulbs yourself. Contact a qualified
specialist workshop, which has the necessary
specialist knowledge and tools to carry out the
work required.
Lamps are an important aspect of vehicle safety. You must therefore make sure that these func-
tion correctly at all times. Have the headlamp
setting checked regularly. Overview of bulb replacement – bulbs
You can replace the following bulbs. The details
for the bulb type can be found in the legend. Static LED headlamps
:
Main-beam headlamp: H7 55 W Replacing bulbs
119Lights and windscreen wipers Z