display MERCEDES-BENZ E-CLASS CABRIOLET 2011 Manual Online

Make sure that the following values are not
exceeded:
R the permissible trailer drawbar noseweight
R the permissible trailer load
R the permissible rear axle load of the towing
vehicle
R the maximum permissible gross vehicle
weight of both the towing vehicle and the
trailer
You will find the applicable permissible val-
ues, which must not be exceeded, in the vehi-
cle documents.
You will find the values approved by the man-
ufacturer on the vehicle identification plates
and those for the towing vehicle in the "Tech-
nical data" section. G
WARNING
If the Check trailer hitch locking mechanism message appears in the multi-
function display while the vehicle is in motion,
pull over immediately and check whether the
ball coupling is correctly engaged. G
WARNING
Always observe the maximum speed permit-
ted in Germany for vehicle/trailer combina-
tions, even in countries where higher speeds
are permitted. This lowers the risk of an acci-
dent. G
WARNING
Never depress the brake pedal continuously
while the vehicle is in motion, e.g. never cause
the brakes to rub by applying constant slight
pedal pressure. This causes the brake system
to overheat, increases the braking distance
and can lead to the brakes failing completely. G
WARNING
On no account should you attempt to draw the
vehicle/trailer combination out by increasing
speed. General information i
When towing atrailer, set the tyre pres-
sure on the rear axle of the towing vehicle
for am aximum load; see the tyre pressure
table in the fuel filler flap (Y page 321).
You will find installation dimensions and loads
in the "Technical data" section
(Y page 343).
The maximum permissible trailer drawbar
noseweight on the ball coupling is 75 kg.
However, the actual noseweight must not
exceed the value given on the trailer tow hitch
and trailer identification plates. The lowest
weight applies.
! Use anoseweight as close as possible to
the maximum permissible noseweight. Do
not use anoseweight of less than 50 kg,
otherwise the trailer may come loose.
Bear in mind that the payload and the rear
axle load are reduced by the actual nose-
weight.
Please note that when towing atrailer, PARK-
TRONIC (Y page 185) and parking guidance
(Y page 189) are only available with limita-
tions, or not at all.
i The height of the ball coupling changes
with the load of the vehicle. If necessary,
use atrailer with aheight-adjustable draw-
bar.
Driving tips i
Observe the notes on ESP ®
trailer stabi-
lisation (Y page 65).
In Germany, the maximum permissible speed
for vehicle/trailer combinations depends on
the type of trailer, and is either 80 km/h or
100 km/h. In some countries, higher maxi-
mum speeds are permissible for vehicle/
trailer combinations. Before beginning the
journey, check the trailer's documents to see
what the maximum permitted speed is.
For certain Mercedes-Ben zvehicles, the max-
imum permissible rear axle load is increased
when towing atrailer. Refer to the "Technical Trailer towing
205Driving and parking Z

X
Pull out release wheel ;.
X Turn release wheel ;anti-clockwise until
the ball coupling releases and folds out
from under the rear bumper. Indicator
lamp :flashes. X
Pull the ball coupling in the direction of the
arrow until it engages in avertical position.
Indicator lamp :goes out. The power
socket folds down automatically.
The multifunction display shows the
Trailer hitch Check lock mech. mes-
sage until the ball coupling is engaged.
X Remove the protective cap from the ball
coupling and store it in asafe place.
X Make sure that the ball of the ball coupling
is clean and that, depending on the trailer
specification, it is greased or dry (without
grease) when used. Coupling up
atrailer G
WARNING
Do not disconnect atrailer with an engaged
overrun brake. Otherwise, your hand could
become trapped between the bumper and
trailer drawbar.
X Make sure that the transmission is in posi-
tion P.
X Apply the parking brake.
X Position the trailer level behind the vehicle.
X Couple up the trailer.
X Establish the electrical connection
between the vehicle and the trailer.
X Check that the trailer lighting system is
working. Decoupling
atrailer G
WARNING
As soon as yo uraise the trailer drawbar ,the
unladen vehicl erises slightly. Th evehicl ethen
lowers to driving level.
Make sure tha tnobody is in the vicinit yofthe
wheel arch or the underbody. You could oth-
erwise trap yourself or others. G
WARNING
The vehicle is lowered as soon as you discon-
nect the trailer cable. Make sure that nobody
is in the vicinit yofthe wheel arch or the
underbody. You could otherwise trap yourself
or others.
As soon as you decouple the trailer, the unla-
den vehicle rises slightly. Make sure that you
or others are not injured in the process.
! Do not disconnect atrailer with an
engaged overrun brake. Otherwise, your
vehicle could be damaged by the rebound-
ing of the overrun brake.
X Make sure that the transmission is in posi-
tion P.
X Apply the parking brake. Trailer towing
207Driving and parking Z

X
Secure the traile ragainst rolling away.
X Remove the trailer cable and decouple the
trailer. Folding in the ball coupling
i Fold the ball coupling back in if you are
not using the trailer tow hitch. G
WARNING
Make sure that no persons or animals are in
the pivoting range of the ball coupling. Other-
wise, they could be injured.
X Place the protective cap on the ball cou-
pling.
The release wheel is located behind the left-
hand side trim panel in the boot. X
To open the cover: turn handle:anti-
clockwise and fold down cover ;. X
Pull out release wheel ;.
X Turn release wheel ;anti-clockwise.
The ball coupling unlocks and lowers. Indi-
cator lamp :flashes. X
Press the ball coupling in the direction of
the arrow until it engages behind the
bumper.
Indicator lamp :goes out and the mes-
sage in the multifunction display disap-
pears. Trailer power supply
When it leaves the factory, your vehicle's
trailer socket is equipped with apermanent
power supply and apower supply that is
switched on via the ignition lock.
The permanent power supply is supplied via
trailer socket pin 9.
The power supply that is switched on via the
ignition lock is supplied via trailer socket pin
10.
! You can connect consumers with apower
rating of up to 240 Wtothe permanent
power supply and up to 180 Wtothe power
supply that is switched on via the ignition
lock.
You must not charge atrailer battery using
the power supply.
The trailer's permanent power supply is
switched off in the event of low vehicle supply
voltage and after six hours at the latest. 208
Trailer towingDriving and parking

You can obtain further information about
installing the trailer electrics fro maqualified
specialist workshop, e.g. aMercedes-Benz
Service Centre.
X To switch the connected power supply
on or off: turn the key in the ignition lock
to position 2or 0respectively. Bulb failur
eindicator for LED lamps
i If LED lamps are fitted in the trailer, an
error message may appear in the multi-
function display even if ther eisnofault. The
reason for the error message may be that
the curren thas falle nbelow the minimum
of 50 milliamperes (mA).
To ensure reliable operation of the bulb failure
indicator, each LED chain in the trailer lighting
must be guaranteed aminimum curren tof
50 mA. Trailer with 7-pin connector
General information If your trailer has
a7-pin connector, you can
connectittot he 13-pin socket on the ball
coupling using an adapter or, if necessary, an
adapter cable. Bothoft hese can be obtained
at aq ualified specialist workshop, e.g. at a
Mercedes-Benz Service Centre.
Fitting the adapter X
Open the socket cover.
X Inser tthe connector with lug :into
groove ;on the socket and turn the con-
nector clockwise to the stop.
X Let the cover engage.
X If you are using an adapter cable, secure
the cable to the trailer with cable ties.
! Make sure that ther eissufficien tcable
play so that th ecabl ecanno tbecome
detached when cornering. Trailer towing
209Driving and parking Z

Useful information
............................212
Importan tsafet ynotes .................... 212
Displays and operation ....................212
Menus and submenus ......................216
Display messages ............................. 232
Warning and indicator lamp sinthe
instrument cluster ............................255 211On-boar
dcomputer and displays

Useful information
i This Owner's Manual describes all models
and all standard and optional equipment
available to your vehicle at the time of pub-
lication of the Owner's Manual. Country-
specific deviation sare possible. Please
not ethat your vehicle may not be equipped
with all feature sdescribed. This also
applies to safety-relevan tsystems and
functions.
i Pleas ereadt he information on qualified
specialist workshop s(Ypage 22). Important safet
ynotes
You will fin danillustration of th einstrument
cluster in th e"At ag lance "section
(Y page 28). G
WARNING
Only use th eon-bo ardc om puter when road
and traffic condition spermit .You would oth-
erwise be distracted and unable to concen-
trate properly on driving, and could cause an
accident. G
WARNING
If the instrument cluster or multifunction dis-
play fails, no messages can be displayed.
This means that you will not see information
about the driving situation, such as the speed,
outside temperature, warning/indicator
lamps, display messages or system failures.
Handling characteristics may be affected.
Adapt your driving style and speed accord-
ingly.
Immediately consult aqualified specialist
workshop which has the necessary specialist
knowledge and tools to carry out the work
required. Mercedes-Benz recommends that
you use aMercedes-Benz Service Centre for
this purpose. In particular, work relevant to
safety or on safety-related systems must be
carried out at aqualified specialist workshop. G
WARNING
The on-board computer only records and dis-
plays malfunctions and warnings from certain
systems. For this reason, you should always
make sure that your vehicle is safe to use. You
could otherwise cause an accident by driving
an unsafe vehicle. G
WARNING
The operating safety of your vehicle could be
jeopardised if maintenance work is carried
out incorrectly. As aresult, you could lose
control of the vehicle and cause an accident.
In addition, the safety systems may no longer
be able to protec tyou or others as they are
designed to do.
Always have maintenance work carried out at
aq ualified specialist workshop. The qualified
specialist workshop must have the necessary
specialist knowledge and tools to carry out
the work required. Mercedes-Benz recom-
mends that you use aMercedes-Benz Service
Centre for this purpose. In particular, work
relevant to safety or on safety-related sys-
tems must be carried out at aqualified spe-
cialist workshop. Displays and operation
Coolant temperature gauge
The coolant temperature gauge is in the
instrument cluster on the right-hand side.
Under normal operating conditions and with
the specified coolant level, the coolant tem-
perature may rise to 120 †.
At high outside temperatures and when driv-
ing uphill, the coolant temperature may rise
to the end of the scale. Rev counter
The red band in the rev counter indicates the
engine's overrevving range. 212
Displays and operationOn-board computer and displays

!
Do not drive in the overrevving range.
Doing so will damage the engine.
The fuel supplyisi nterrupted to protect the
engine when the red band is reached. Outside temperatured
isplay
The outside temperature displayisint he mul-
tifunction display( Ypage 214). G
WARNING
At temperatures just above freezing point, the
street may be icy, especiallyinw ooded areas
or on bridges. If you do not adapty our driving
style to the conditions, the vehicle could skid.
For this reason, adapt your driving style and
speed to the weather conditions.
Changes in the outside temperature are dis-
playeda fterashort delay. Speedometer with segments
The segment sinthe speedometer indicate
which speed range is available.
Cruise control (Y page 169) activated:
The segment slight up from the stored speed
to the maximum speed.
Variable SPEEDTRONIC (Y page 180) activa-
ted:
The segment slight up from the start of the
scale to the selected limit speed.
DISTRONIC PLUS (Y page 171) activated:
One or two segment sinthe set speed range
light up.
DISTRONIC PLUS detect savehicle in front:
The segment sbetween the speed of the vehi-
cle in front and the stored speed light up. Operating the on-board computer
Overview The on-board computer is activated as soon
as you turn the key to position
1in the ignition
lock.
You can control the multifunction display and
the settings in the on-board computer using
the button sonthe multifunction steering
wheel. :
Multifunction display
; Switches on LINGUATRONIC; see the sep-
arate operating instructions
= Right control panel
? Left control panel
A Back button Displays and operation
213On-board computer and displays Z

Left control panel
=
; R
Calls up th emenua nd men ubar 9
:
Press briefly:
R
Scrolls through lists
R Select sasubmenu or function
R In the Audio menu: selects a
stored station, an audio track or
av ideo scene
R In the Tel (telephone) menu:
switche stothephon ebook and
selects anam eort elephone
number 9
:
Press and hold:
R
In the Audio menu: selects the
previous/nex tstation or selects
an audi otrack or avideo scene
using rapi dscrolling
R In the Tel (telephone
)menu:
starts rapi dscrolling throug hthe
phone book a R
Confirms selection/displa ymes-
sage
R In the Tel (telephone
)menu:
switches to the telephone book
and starts dialling the selected
number
R In the Audio menu
:stops the
statio nsearch functio natthe
desired station Right contro
lpanel ~ R
Rejects or end sacall
R Exits telephone book/redial
memory 6 R
Makes or accepts acall
R Switche stothe redia lmemory W
X R
Adjusts the volume 8 R
Mute Bac
kbutton %
Press briefly:
R
Back
R Switche soff LINGUATRONIC
R Hides displa ymessage sorcalls
up the last Trip menu function
used
R Exits the telephone book/redial
memory %
Press and hold:
R
Call supthe standard displa yin
the Trip menu
Multifunctio
ndisplay
Values and setting saswellasd isplay mes-
sage sareshown in the multifunctio ndisplay. :
Descriptio nfield
; Men ubar
= Drive program
? Outside temperature or speed
(Ypage 225)
A Transmission position
X To show menu bar ;:press the =
or ; button on the steerin gwheel. 214
Display
sand operationOn-board computer and displays

Vehicles with manual transmission:
the
indicators in the lowe rpartoft he multifunc-
tion display differ from the display shown
here.
The following messages can appear in the
multifunction display:
Z Shift recommendation
(Ypage 154)
XjY Parking Guidance (Y page 189)
_ Adaptive Highbeam Assist
(Ypage 119)
À ATTENTIONASSIST (Y page 194)
¤ ECO start/stop function
(Ypage 150)
Ä Speed Limit Assist (Y page 195)
à Lane Keeping Assist
(Ypage 198) or Active Lane Keep-
ing Assist (Y page 202)
HOLD HOLD function (
Ypage 184)
Ä PRE-SAFE®
Brake (Y page 66)
120km/h! Maximu
mpermissible speed
exceeded (only for certain coun-
tries) Displays and operation
215On-boardcomputer and displays Z

Menus and submenus
Menu overview
The number of menus show ndepends on the optional equipment in the vehicle. Function
:
Trip menu (Y
page 217) ;
Navi menu (navigation instructions) (Y
page 218)=
Audio menu (Y
page 219) ?
Tel menu (telephone) (Y
page 221)A
Assist. menu (assistance) (Y
page 222)B
Service menu (Y
page 224)
R calls up display messages ( Ypage 232)
R tyre pressure loss warning (Y page 322)
R ASSYST PLUS servic einterval display (Y page 284) C
Settings menu (Y
page 224) The
Audio ,
Navi and
Tel menus differ slightly in vehicles with an audio system and vehicles
with COMAND APS.T he examples given in this Owner's Manual apply to vehicles equipped
with COMAND APS. 216
Menus and submenusOn-board computer and displays