warning MERCEDES-BENZ E-CLASS CABRIOLET 2015 Owners Manual

Engine
Warning/
indicator
lamp
N N
Signal type
Possible causes/consequences and M
MSolutions ;
N
The yellow engine diagnostics warning lamp lights up while the engine is run-
ning.
There may be a fault, for example:
R in the engine management
R in the fuel injection system
R in the exhaust system
R in the ignition system (for vehicles with petrol engines)
R in the fuel system
The emission limit values may be exceeded and the engine may be running in
emergency mode.
X Consult a qualified specialist workshop immediately.
Vehicles with a diesel engine: the fuel tank has been run dry (Y page 157).
X After refuelling start the engine three to four times.
If the yellow engine diagnostics warning lamp goes out, emergency running
mode is cancelled. You do not need to have the vehicle checked. 8
N
The yellow reserve fuel warning lamp is on while the engine is running.
The fuel level has dropped into the reserve range.
Operation of the auxiliary heating is deactivated if the fuel level drops into the
reserve range.
X Refuel at the nearest filling station. ?
N
The red coolant warning lamp lights up while the engine is running and the
coolant temperature gauge is at the start of the scale.
The temperature sensor for the coolant temperature gauge is faulty.
The coolant temperature is no longer being monitored. There is a risk of engine
damage if the coolant temperature is too high.
X Stop the vehicle immediately, paying attention to road and traffic conditions,
and switch off the engine. Do not continue driving under any circumstances.
X Safeguard the vehicle against rolling away (Y page 157).
X Consult a qualified specialist workshop. Warning and indicator lamps in the instrument cluster
259On-board computer and displays Z

Warning/
indicator
lamp
N N
Signal type
Possible causes/consequences and M
M Solutions ?
N
The red coolant warning lamp comes on while the engine is running.
The coolant level is too low.
If the coolant level is correct, the airflow to the engine radiator may be blocked or the electric engine radiator fan may be malfunctioning.
The coolant is too hot and the engine is no longer being cooled sufficiently.
X Observe the additional display messages in the multifunction display.
X Stop the vehicle immediately, paying attention to road and traffic conditions,
and switch off the engine.
X Safeguard the vehicle against rolling away (Y page 157).
X Leave the vehicle and keep a safe distance from the vehicle until the engine has
cooled down.
X Check the coolant level and top up the coolant, observing the warning notes
(Y page 292).
X If you have to top up the coolant frequently, have the engine cooling system
checked.
X Make sure that the air supply to the engine radiator is not blocked, e.g. by frozen
slush.
X Do not start the engine again until the coolant temperature is below 120 †. The
engine may otherwise be damaged.
X Drive to the nearest qualified specialist workshop.
X Avoid putting the engine under heavy load as you do so, e.g. driving in moun-
tainous terrain and stop-start traffic. ?
N
The red coolant warning lamp comes on while the engine is running. A warning
tone also sounds.
The coolant temperature has exceeded 120 †. The airflow to the engine radiator
may be blocked or the coolant level may be too low.
G WARNING
The engine is not being cooled sufficiently and may be damaged.
Never drive with an overheated engine. Driving when your engine is overheated
can cause some fluids which may have leaked into the engine compartment to
catch fire.
In addition, steam from an overheated engine can cause serious burns, which can
occur just by opening the bonnet.
There is a risk of injury.
X Observe the additional display messages in the multifunction display.
X Stop the vehicle immediately, paying attention to road and traffic conditions,
and switch off the engine.
X Safeguard the vehicle against rolling away (Y page 157).
X Leave the vehicle and keep a safe distance from the vehicle until the engine has
cooled down.
X Check the coolant level and top up the coolant, observing the warning notes
(Y page 292).
X If you have to top up the coolant frequently, have the engine cooling system
checked. 260
Warning and indicator lamps in the instrument clusterOn-board computer and displays

Warning/
indicator
lamp
N N
Signal type
Possible causes/consequences and M
MSolutions X
Make sure that the air supply to the engine radiator is not blocked, e.g. by frozen
slush.
X If the coolant temperature is below 120 †, you can continue driving to the
nearest qualified specialist workshop.
X Avoid putting the engine under heavy load as you do so, e.g. driving in moun-
tainous terrain and stop-start traffic. Driving systems
Warning/
indicator
lamp
N N
Signal type
Possible causes/consequences and M
MSolutions ·
N
The red distance warning lamp lights up while the vehicle is in motion.
The distance to the vehicle in front is too small for the speed selected.
X Increase the distance. ·
N
The red distance warning lamp lights up while the vehicle is in motion. A warning
tone also sounds.
You are approaching a vehicle, a pedestrian or a stationary obstacle in your line of travel at too high a speed.
X Be prepared to brake immediately.
X Pay careful attention to the traffic situation. You may have to brake or take
evasive action.
Observe the additional information on PRE‑SAFE ®
Brake (Y page 69).
Observe the additional information on the distance warning function of COLLISION PREVENTION ASSIST PLUS (Y page 64). Warning and indicator lamps in the instrument cluster
261On-board computer and displays Z

Tyres
Warning/
indicator
lamp
N N
Signal type
Possible causes/consequences and M
MSolutions h
N
The yellow tyre pressure monitor warning lamp (pressure loss or malfunction) is
lit.
The tyre pressure monitor has detected a loss of pressure in at least one of the
tyres.
G WARNING
Underinflated tyres pose the following risks:
R the tyres may burst, especially as the load and vehicle speed increase
R the tyres may wear excessively and/or unevenly, which may greatly impair tyre
traction
R the driving characteristics, as well as steering and braking, may be greatly
impaired
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking manoeuvres.
Pay attention to the traffic conditions as you do so.
X Safeguard the vehicle against rolling away (Y page 157).
X Observe the additional display messages in the multifunction display.
X Check the tyres and, if necessary, follow the instructions for a flat tyre
(Y page 306).
X Check the tyre pressure (Y page 326).
X If necessary, correct the tyre pressure. h
N
The yellow tyre pressure monitor warning lamp (pressure loss/malfunction)
flashes for approximately one minute and then remains lit.
The tyre pressure monitor is faulty.
G WARNING
The system is possibly unable to detect or register low tyre pressure.
There is a risk of an accident.
X Observe the additional display messages in the multifunction display.
X Consult a qualified specialist workshop immediately. 262
Warning and indicator lamps in the instrument clusterOn-board computer and displays

General notes
The multimedia system section in this manual
describes the basic principles for operation.
More information can be found in the Digital
Owner's Manual. Important safety notes
G
WARNING
Operating the integrated information systems and communications equipment in the vehicle
while driving will distract you from traffic con-
ditions. You could then lose control of the
vehicle. There is a risk of an accident.
Only operate these devices if road traffic con-
ditions permit. If you are unsure about the
surrounding conditions, pull over to a safe
location and make entries only while the vehi-
cle is stationary.
You must observe the legal requirements for the country in which you are currently driving whenoperating the multimedia system.
The multimedia system calculates the route to
the destination without taking the following into
account, for example:
R traffic lights
R stop and give way signs
R parking or stopping restrictions
R road narrowing
R other road and traffic rules and regulations
The multimedia system may give incorrect nav-
igation recommendations if the actual street/
traffic situation does not correspond with the
digital map's data.
For example:
R a diverted route
R the road layout or the direction of a one-way
street has been changed
For this reason, you must always observe road
and traffic rules and regulations during your
journey. Road and traffic rules and regulations
always have priority over multimedia system
driving recommendations. Function restrictions
For safety reasons, some functions are restric-
ted or unavailable while the vehicle is in motion.
You will notice this, for example, because either
you will not be able to select certain menu items or a message will appear to this effect. Operating system
Overview
General notes !
Do not use the space in front of the display
for storage. Objects placed here could dam-
age the display or impair its function. Avoid
any direct contact with the display surface.
Pressure on the display surface may result in
impairments to the display, which could be
irreversible.
Wearing polarised sunglasses may impair your
ability to read the display.
The display has an automatic temperature-con- trolled switch-off feature. The brightness is
automatically reduced if the temperature is too
high. If necessary, the display may temporarily
switch off completely.
Cleaning instructions !
Do not touch the display. The display has a
very sensitive high-gloss surface; there is a
risk of scratching. If you have to clean the
screen, however, use a mild cleaning agent
and a soft, lint-free cloth.
The display must be switched off and have
cooled down before you start cleaning. Do not
apply pressure to the display surface when
cleaning it, as this could cause irreversible dam- age to the display.
Switching the multimedia system
on/off X
Press the qcontrol knob. Operating system
263Multimedia system Z

X
Select a favourite.
X Add a favourite at the desired position.
If a favourite has already been added at this
position, it will be overwritten.
Adding your own favourite
X Select Vehicle VehicleQ Climate control Climate control.
X Press and hold the òbutton until the
favourites are displayed.
X Add a favourite at the desired position.
If a favourite has already been added at this
position, it will be overwritten. Navigation mode
Important safety notes G
WARNING
Operating the integrated information systems and communications equipment in the vehicle
while driving will distract you from traffic con-
ditions. You could then lose control of the
vehicle. There is a risk of an accident.
Only operate these devices if road traffic con-
ditions permit. If you are unsure about the
surrounding conditions, pull over to a safe
location and make entries only while the vehi-
cle is stationary.
You must observe the legal requirements for the country in which you are currently driving whenoperating the navigation system.
General notes Correct functioning of the navigation system
depends, amongst other things, on GPS recep-
tion. In certain situations, GPS reception may be
impaired, there may be interference or there
may be no reception at all, e.g. in tunnels or
multi-storey car parks.
Audio 20 is equipped with Garmin ®
MAP PILOT
(see the manufacturer's operating instructions).
The Garmin ®
MAP PILOT operating instructions
are stored on the SD memory card as a PDF file. The SD card box contains a quick guide.
The following descriptions apply to navigation
with COMAND Online. Further information can
be found in the Digital Owner's Manual. Selecting a route type and route options Multimedia system:
X Select Navi
Navi QNavigationNavigation.
The map displays the current vehicle position.
X Slide 6the controller.
X Select Options OptionsQ Route settings
Route settings .
Notes for route types:
R Eco route
Eco route
R Dynamic route
Dynamic route
Traffic reports on the route for the route guid-
ance are taken into account.
R Dynamic route only after request Dynamic route only after request
You can decide whether or not current traffic
reports should be taken into account for route
calculation.
R Calculate alternative routes
Calculate alternative routes
Different routes are being calculated. In order
to do so, instead of Start
Start, select the menu
item Continue Continue .
Notes for route options:
R Use toll roads
Use toll roads
The route calculation includes roads which
require you to pay a usage fee (toll).
R Use vignette roads
Use vignette roads (not available in all
countries)
The route calculation includes roads which
require you to pay a time-based fee (vignette). A vignette allows temporary use of the route
network, e. g. 10 days or 1 year.
Entering an address Multimedia system:
X Select Navi NaviQNavigationNavigation.
The map displays the current vehicle position.
X Slide 6the controller.
X Select Destination
DestinationQ Address entry
Address entry.
Enter an address, e.g. as follows:
R town or postcode, street, house number
R country, town or postcode
R town or postcode, centre
R street, town or postcode, junction
X Select Town
Town.
The town in which the vehicle is currently
located (current vehicle position) is at the top.
Below this, you will see locations for which
route guidance has already been carried out. Operating system
265Multimedia system Z

Text messages
Requirements
The module is connected with the mobile phone
(Y page 269) or is being used in the SIM card
mode (Y page 268).
Activating/deactivating text message
downloading from the mobile phone Dial number Function
00080 Text message down-
loading is deactiva-
ted.
00081 Text message down-
loading is activated.
For further information on receiving text mes-
sages when using the telephone module (see
the manufacturer's operating instructions).
Charging a mobile phone X
Slide cover ;on the module in the direction
of the arrow and remove it.
X Connect the mobile phone with a USB data
cable to USB socket :.Media mode
General notes If you wish to play external media sources, the
default display must already be turned on. Fur-
ther information on media mode (see the Digital
Owner's Manual). The following external media sources can be
used:
R Apple ®
devices (e.g. iPhone ®
)
R USB devices (e.g. USB stick, MP3 player)
R CD
R DVD (COMAND Online)
R SD cards
R via devices connected by Bluetooth ®
i Information on the single CD/DVD drive or
DVD changer (see the Digital Owner's Man-
ual).
Using the device list Multimedia system:
X Select Media MediaQ Devices
Devices.
The available media sources will be shown.
The #dot indicates the current setting.
X Select the media source.
Playable files are played back.
Inserting/removing SD memory card Important safety notes
G
WARNING
SD memory cards are small parts. They can be swallowed and cause asphyxiation. This
poses an increased risk of injury or even fatal injury.
Keep SD memory cards out of the reach of
children. If an SD memory card is swallowed,
seek immediate medical attention.
! If you are no longer using the SD memory
card, you should remove it and take it out of
the vehicle. High temperatures can damage
the card.
Inserting an SD memory card
The SD card slot is on the control panel.
X Insert the SD memory card into the SD card
slot until it engages. The side with the con-
tacts must face downwards.
Ejecting an SD memory card X Press the memory card.
The memory card is ejected.
X Remove the memory card. 270
Operating systemMultimedia system

Stowage areas
Loading guidelines
G
WARNING
If objects, luggage or loads are not secured or not secured sufficiently, they could slip, tip
over or be flung around and thereby hit vehicle
occupants. There is a risk of injury, especially when braking or abruptly changing directions.
Always store objects so that they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping before the
journey. G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Exhaust
gases can enter the vehicle interior if the boot
lid is open when the engine is running, espe-
cially if the vehicle is in motion. There is a risk of poisoning.
Always switch off the engine before opening
the boot lid. Never drive with the boot lid
open. G
WARNING
The exhaust tail pipe and tail pipe trim can
become very hot. If you come into contact
with these parts of the vehicle, you could burn
yourself. There is a risk of injury.
Always be particularly careful around the
exhaust tail pipe and the tail pipe trim. Allow
these components to cool down before touch-
ing them.
The handling characteristics of a laden vehicle
are dependent on the distribution of the load
within the vehicle. For this reason, you should
observe the following notes when transporting a
load:
R never exceed the maximum permissible gross
vehicle weight or the permissible axle loads
for the vehicle (including occupants).
R the boot is the preferred place to store
objects.
R position heavy loads as far forwards as pos-
sible and as low down in the boot as possible. R
the load must not protrude above the upper
edge of the seat backrests.
R always place the load against the rear or front
seat backrests. Make sure that the seat
backrests are securely locked into place.
R always place the load behind unoccupied
seats if possible.
R use the lashing eyelets and the luggage nets
to transport loads and luggage.
R only use lashing eyelets and fastening com-
ponents that are suitable for the weight and
size of the load.
R secure the load with sufficiently strong and
wear-resistant lashing material. Pad sharp
edges for protection.
i Load restraints are available at any qualified
specialist workshop, e.g. a Mercedes-Benz
Service Centre. Stowage compartments
Important safety notes G
WARNING
If objects in the passenger compartment are
stowed incorrectly, they can slide or be
thrown around and hit vehicle occupants. In
addition, cupholders, open stowage spaces
and mobile phone brackets cannot always
retain all objects they contain. There is a risk of injury, particularly in the event of sudden
braking or a sudden change in direction.
R Always stow objects so that they cannot be
thrown around in such situations.
R Always make sure that objects do not pro-
trude from stowage spaces, parcel nets or
stowage nets.
R Close the lockable stowage spaces before
starting a journey.
R Always stow and secure heavy, hard, poin-
ted, sharp-edged, fragile or bulky objects in
the boot.
Observe the loading guidelines (Y page 272).272
Stowage areasStowing and features

X
To open: slide cover :back.
Stowage compartment/telephone
compartment under the armrest Vehicles with manual transmission
X To open: press left-hand button ;or right-
hand button :.
The stowage compartment opens. Vehicles with DIRECT SELECT lever
X To open: press left-hand button ;or right-
hand button :.
The stowage compartment opens.
i Coupé: instead of a soft top switch, an addi-
tional stowage compartment can be found in
front of the armrest.
Depending on the vehicle's equipment, the fol-
lowing may be in the stowage space:
R a multimedia connector unit with an SD card
slot and 2 USB ports (Media Interface), e.g. for
use with an iPod ®
, iPhone ®
or MP3 player; see
the separate operating instructions
R a mobile phone bracket (Y page 281)Stowage compartment under the front
seats G
WARNING
If you exceed the maximum permitted load of the stowage compartment, the cover is
unable to restrain the objects. Objects may be
thrown out of the stowage compartment and
hit vehicle occupants as a result. There is a
risk of injury, particularly in the event of sud-
den braking or a sudden change in direction.
Always observe the maximum load of the
stowage compartment. Stow and secure
heavy objects in the boot.
The maximum permissible load of the stowage
compartment is 1.5 kg. X
To open: pull handle :up and fold cover ;
forwards.
i On vehicles with a fire extinguisher instead
of a stowage compartment, the fire extin-
guisher is installed under the driver's seat. Stowage nets
Stowage nets are located in the front-passenger footwell and on the left- and right-hand sides of
the boot.
Observe the loading guidelines (Y page 272)
and the safety notes regarding stowage spaces
(Y page 272). 274
Stowage areasSto
wing an d features

Skibag
Unfolding the skibag and loading skis G
WARNING
The skibag in conjunction with the lashing
straps cannot restrain any objects other than skis.
Vehicle occupants could be struck in the
event of sudden braking or an accident, for
instance, if you:
R transport other heavy or sharp-edged
objects in the skibag
R do not secure the skibag with the lashing
straps
There is a risk of accident and injury.
Store only skis in the skibag. Always secure
the skibag with the lashing straps so that it
cannot move around.
X Make sure that the roof and the boot cover
are closed. X
Fold down the rear seat armrest.
X Pull handle :and fold cover ;downwards. X
Pull skibag :into the vehicle interior and
unfold it.
X Open the boot lid. X
Push button :downwards.
The flap opens downwards.
X Slide the skis into the skibag from the boot. X
Pull strap :tight by the loose end until the
skis are held firmly inside the skibag. X
Engage hook :in securing ring ;.
X Pull the strap tight by the loose end. Stowage areas
275Stowing and features Z