AUX MERCEDES-BENZ CLA 2013 User Guide

Display messagesPossible causes/consequences and M SolutionsThe auxiliary heating cannot be switched on or has switched itself
off.
There is too little fuel in the fuel tank.XRefuel at the nearest filling station.XMake another attempt to switch on the auxiliary heating using
the remote control.The auxiliary heating cannot be switched on or has switched itself
off.
The auxiliary heating is faulty.XHave the auxiliary heating checked at a qualified specialist
workshop.Adjusting the air vents
Important safety notes
GWARNING
Very hot or very cold air can flow from the air
vents. This could result in burns or frostbite in
the immediate vicinity of the air vents. There
is a risk of injury.
Make sure that all vehicle occupants always
maintain a sufficient distance to the air out-
lets. If necessary, redirect the airflow to
another area of the vehicle interior.
In order to ensure the direct flow of fresh air
through the air vents into the vehicle interior,
please observe the following notes:
R keep the air inlet between the windscreen
and the bonnet free of blockages, such as
ice, snow or leaves.
R never cover the vents or ventilation grilles
in the vehicle interior.
i Move the adjusters for the air vents ver-
tically or horizontally, to set the direction of
the airflow.
i Optimal climate control function is ach-
ieved by opening the air vents fully and set-
ting the adjusters to the middle position.
Setting the centre air ventsXTo open the centre air vent: turn the
adjuster in one of centre air vents : anti-
clockwise.XTo close the centre air vent: turn the
adjuster in one of centre air vents : clock-
wise until it engages.Adjusting the air vents141Climate controlZ

Problems with the transmissionProblemPossible causes/consequences and M SolutionsThe transmission has
problems shifting gear.The transmission is losing oil.XHave the transmission checked at a qualified specialist work-
shop immediately.The acceleration ability
is deteriorating.
The transmission no
longer shifts into all of
the gears.
Reverse gear can no
longer be engaged.The transmission is in emergency mode.XStop.XShift the transmission to position P.XSwitch off the engine.XWait at least 10seconds before restarting the engine.XShift the transmission to position D.XHave the transmission checked at a qualified specialist work-
shop immediately.Refuelling
Important safety notes
GWARNING
Fuel is highly flammable. If you handle fuel
incorrectly, there is a risk of fire and explo-
sion.
You must avoid fire, naked flames, creating
sparks and smoking. Switch off the engine
and, if applicable, the auxiliary heating before
refuelling.
GWARNING
Fuels are poisonous and hazardous to health.
There is a danger of injury.
Do not swallow fuel or let it come into contact
with skin, eyes or clothing. Do not inhale fuel
vapours. Keep fuels out of the reach of chil-
dren.
If you or others come into contact with fuel,
observe the following:
R Wash the fuel off any affected areas of skin
with water and soap immediately.
R If you get fuel in your eyes, rinse them thor-
oughly with clean water immediately. Seek
immediate medical attention.
R If fuel is swallowed, seek immediate medi-
cal attention. Do not induce vomiting.
R Change any clothing that has come into
contact with fuel immediately.GWARNING
Electrostatic charge can cause sparks and
thereby ignite fuel vapours. There is a risk of
fire and explosion.
Always touch the vehicle body before opening
the fuel filler flap or touching the fuel pump
nozzle. This discharges any electrostatic
charge that may have built up.
GWARNING
Vehicles with a diesel engine:
If you mix diesel fuel with petrol, the flash
point of this fuel mixture is lower than that of
pure diesel fuel. When the engine is running,
components in the exhaust system may over-
heat unnoticed. There is a risk of fire.
Never refuel with petrol. Never add petrol to
diesel fuel.
! Do not use petrol to refuel vehicles with a
diesel engine. Do not use diesel to refuel
vehicles with a petrol engine. Do not switch
Refuelling159Driving and parkingZ

Limited braking performance on salt-
treated roads
If you drive on salted roads, a layer of salt
residue may form on the brake discs and
brake pads. This can result in a significantly
longer braking distance.
R Brake occasionally to remove any possible
salt residue. Make sure that you do not
endanger other road users when doing so.
R Carefully depress the brake pedal and the
beginning and end of a journey.
R Maintain a greater distance to the vehicle
ahead.
New brake pads/linings
New and replaced brake pads and discs only
reach their optimum braking effect after sev-
eral hundred kilometres of driving. Compen-
sate for this by applying greater force to the
brake pedal.
For safety reasons, Mercedes-Benz recom-
mends that you only have brake pads/linings
fitted to your vehicle which have been
approved for Mercedes-Benz vehicles or
which correspond to an equivalent quality
standard. Brake pads/linings which have not
been approved for Mercedes-Benz vehicles or
which are not of an equivalent quality could
affect your vehicle's operating safety.
Driving on wet roads
Aquaplaning
If water has accumulated to a certain depth
on the road surface, there is a danger of aqua-
planing occurring, even if:
R you are driving at low speeds
R the tyres have adequate tread depth
For this reason, do not drive in tyre ruts and
brake carefully.
Driving on flooded roads
! Bear in mind that vehicles travelling in
front or in the opposite direction create
waves. This may cause the maximum per-
missible water depth to be exceeded.
These notes must be observed under all
circumstances. You could otherwise dam-
age the engine, the electronics or the trans-
mission.
If you have to drive on stretches of road on
which water has collected, please bear in
mind that:
R the maximum permissible fording depth in
still water is 25 cm
R you should drive no faster than walking
pace
Winter driving
General notes
GWARNING
If you shift down on a slippery road surface in
an attempt to increase the engine's braking
effect, the drive wheels could lose their grip.
This increases the risk of skidding and having
an accident.
Do not shift down for additional engine brak-
ing on a slippery road surface.
GDANGER
If the exhaust pipe is blocked or adequate
ventilation is not possible, poisonous gases
such as carbon monoxide (CO) may enter the
vehicle. This is the case, e.g. if the vehicle
becomes trapped in snow. There is a risk of
fatal injury.
If you leave the engine or the auxiliary heating
running, make sure the exhaust pipe and area
around the vehicle are clear of snow. To
ensure an adequate supply of fresh air, open
a window on the side of the vehicle that is not
facing into the wind.
Driving tips167Driving and parkingZ

Audio player or audio media operation
Example: CD changer display
:Current CD in the CD changer;Current track
Audio data from various audio devices or
media can be played, depending on the equip-
ment fitted in the vehicle.
XSwitch on the audio system or COMAND
Online and select audio CD, audio DVD or
MP3 mode; see the separate operating
instructions.XPress the = or ; button on the steer-
ing wheel to select the Audio menu.XTo select the next/previous track:
briefly press the 9 or : button.XTo select a track from the track list
(rapid scrolling): press and hold the
9 or : button until desired
track ; has been reached.
If you press and hold the 9 or : but-
ton, the rapid scrolling speed is increased.
Not all audio devices or media support this
function.
If track information is stored on the audio
device or medium, the multifunction display
will show the number and title of the track.
The current track does not appear in audio
AUX mode ( Auxiliary audio mode: external
audio source connected).
Video DVD operation
Example: DVD changer display
:Current DVD in the DVD changer;Current sceneXSwitch on COMAND Online and select
video DVD, see the separate operating
instructions.XPress the = or ; button on the steer-
ing wheel to select the Audio menu.XTo select the next or previous scene:
briefly press the 9 or : button.XTo select a scene from the scene list
(rapid scrolling): press and hold the
9 or : button until desired
scene ; has been reached.
Telephone menu
Introduction
GWARNING
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.
When telephoning, you must observe the
legal requirements for the country in which
you are currently driving.
Menus and submenus215On-board computer and displaysZ

XPress the a button.
The current selection is displayed.XTo activate/deactivate: press the a
button again.
When ATTENTION ASSIST ( Y page 195) is
deactivated, the é symbol appears in
the multifunction display in the assistance
graphics display.
Activating/deactivating Blind Spot
Assist
XPress the = or ; button on the steer-
ing wheel to select the Assist menu.XPress 9 or : to select Blind Spot
Asst. .XPress the a button.
The current selection is displayed.XTo activate/deactivate: press the a
button again.
For further information about Blind Spot
Assist, see ( Y page 197).
When the Blind Spot Assist: Sensors
deactivated message is shown, the radar
sensors are deactivated.
XSwitch on the radar sensor system
( Y page 223).
Activating/deactivating Lane Keeping
Assist
XPress the = or ; button on the steer-
ing wheel to select the Assist menu.XPress 9 or : on the steering wheel
to select Lane Keeping Assist .XPress the a button.
The current selection is displayed.XPress a to confirm.XPress the : or 9 button to set Off,
Standard or Adaptive .XPress the a button to save the setting.
When Lane Keeping Assist ( Y page 199) is
activated, the multifunction display in theassistance graphic shows the lane mark-
ings in green.
Service menu
In the Serv menu, you have the following
options:
R Calling up display messages in message
memory ( Y page 226)
R Restarting the tyre pressure loss warning
system ( Y page 321)
R Calling up the service due date
( Y page 286)
Settings menu
Introduction
In the Settings menu, you have the following
options:
R change the instrument cluster settings
R change the light settings
R change the vehicle settings
R change the auxiliary heating settings
( Y page 223)
R change the convenience settings
R restore the factory settings
Menus and submenus219On-board computer and displaysZ

XPress a to confirm.
You will see the selected setting.XPress a to confirm.XPress the : or 9 button to select A,
B or Change C .XPress a to confirm.
You can now change the departure time.XPress the = or ; button to select the
display to be changed: hours, minutes.XPress the : or 9 button to set the
selected display.XPress the a button to store the entry.
The yellow indicator lamp on the auxiliary
heating button lights up.
Selecting the departure time or deactivat-
ing a selected departure time
XPress the = or ; button on the steer-
ing wheel to select the Settings menu.XPress the : or 9 button to select the
Heating submenu.XPress a to confirm.
You will see the selected setting.XPress a to confirm.XPress : or 9 to select one of the
three departure times or Timer off (no
timer active).XPress a to confirm.
If a departure time is selected, the yellow
indicator lamp lights up on the auxiliary
heating button.
Changing the departure time
Only vehicles with auxiliary heating
( Y page 136) have this function.
In the Heating submenu, you can select a
stored departure time or change a departure
time.
The auxiliary heating timer function calcu-
lates the switch-on time according to the out-
side temperature so that the vehicle is pre-
heated by the departure time. When the
departure time is reached, the auxiliary heat-
ing continues to heat for a further five
minutes and then switches off. The auxiliary
heating adopts the THERMATIC or
THERMOTRONIC temperature setting.
You can switch off the auxiliary heating by
using the remote control or the auxiliary heat-
ing button on the centre console.GDANGER
If the exhaust pipe is blocked or sufficient
ventilation is not possible, toxic exhaust
fumes can enter the vehicle, especially car-
bon monoxide. This is the case, e.g. in
enclosed spaces, or if the vehicle is stuck in
snow. There is a risk of fatal injuries.
You should switch off the auxiliary heating in
enclosed spaces which do not have an extrac-
tion system, e.g. a garage. If the vehicle is
stuck in snow and you must leave the auxiliary
heating running, keep the exhaust pipe and
the area around the vehicle clear of snow. To
guarantee a sufficient supply of fresh air, open
a window on the side of the vehicle away from
the wind.
GWARNING
When the auxiliary heating is switched on,
parts of the vehicle can become very hot.
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with
hot parts of the exhaust system for extended
periods. There is a risk of fire.
When the auxiliary heating is switched on,
make sure that no flammable material can
come into contact with hot vehicle compo-
nents.
! Operating the auxiliary heating/ventila-
tion draws on the vehicle battery. After you
have heated or ventilated the vehicle a
maximum of two times, drive for a longer
distance.
i Switch the auxiliary heating on regularly
once a month for about ten minutes.
224Menus and submenusOn-board computer and displays

Display messagesPossible causes/consequences and M Solutions4
Check eng. oil
lev. when next
refuellingThe engine oil level has dropped to the minimum level.
A warning tone also sounds.XCheck the oil level when next refuelling, at the latest
( Y page 284).XIf necessary, top up the engine oil ( Y page 285).XHave the engine checked at a qualified specialist workshop if
the engine oil needs topping up more often than usual.æ
Reserve fuel levelThe fuel level has dropped into the reserve range.
The auxiliary heating cannot be operated.XRefuel at the nearest filling station.çThere is very little fuel in the fuel tank.
The auxiliary heating cannot be operated.XRefuel at the nearest filling station without fail.¸
Replace air
cleaner elementVehicles with a diesel engine: the engine air filter is dirty and must
be replaced.XVisit a qualified specialist workshop.!
Clean fuel filterVehicles with a diesel engine: there is water in the fuel filter. The
water must be drained off.XVisit a qualified specialist workshop.
Driving systems
Display messagesPossible causes/consequences and M SolutionsÀ
Attention Assist
Drowsiness detec‐
tedBased on certain criteria, ATTENTION ASSIST has detected fatigue
or a lack of concentration on the part of the driver. A warning tone
also sounds.XIf necessary, take a break.
During long journeys, take regular breaks in good time so that you
get enough rest.
À
Attention Assist
inoperativeATTENTION ASSIST is inoperative.XVisit a qualified specialist workshop.242Display messagesOn-board computer and displays

Display messagesPossible causes/consequences and M SolutionsTyre pressure mon‐
itor currently
unavailableDue to a source of radio interference, no signals can be received
from the wheel sensors. The tyre pressure monitor is temporarily
malfunctioning.XDrive on.
The tyre pressure monitor restarts automatically as soon as the
cause has been rectified.Wheel sensor(s)
missingThere is no signal from the tyre pressure sensor of one or several
wheels. The pressure of the affected tyre is not displayed in the
multifunction display.XHave the faulty tyre pressure sensor replaced at a qualified spe-
cialist workshop.Tyre press. moni‐
tor inoperative No
wheel sensorsThe wheels fitted do not have a suitable tyre pressure sensor. The
tyre pressure monitor is deactivated.XFit wheels with suitable tyre pressure sensors.
The tyre pressure monitor is activated automatically after driv-
ing for a few minutes.Tyre pressure mon‐
itor inoperativeThe tyre pressure monitor is faulty.XVisit a qualified specialist workshop.
Vehicle
Display messagesPossible causes/consequences and M SolutionsTo start engine,
shift to either P
or NYou have attempted to start the engine with the transmission in
position R or D.XShift the transmission to position P or N.Auxiliary battery
MalfunctionThe auxiliary battery for the automatic transmission is no longer
being charged.XVisit a qualified specialist workshop at the next opportunity.XUntil then, set the automatic transmission to position P before
you switch off the engine.XBefore leaving the vehicle, apply the electric parking brake.Depress brake to
start engineYou have attempted to start the engine with the transmission in
position N without depressing the brake pedal.XDepress the brake pedal.250Display messagesOn-board computer and displays

Display messagesPossible causes/consequences and M Solutionsj
Check trailer
hitch lockThe trailer tow hitch is not correctly engaged.
A warning tone also sounds.XStop the vehicle immediately, paying attention to road and traf-
fic conditions, and switch off the engine.XApply the electric parking brake.XEngage the trailer coupling's ball coupling in the end position
( Y page 203).
Otherwise, the trailer may detach itself.
Ð
Power steering mal‐
function See Own‐
er's ManualThe power steering assistance is faulty.
A warning tone also sounds.GWARNING
You will need to use more force to steer.
There is a risk of an accident.
XCheck whether you are able to apply the extra force required.XIf you are able to steer safely: carefully drive on to a qualified
specialist workshop.XIf you are unable to steer safely: do not drive on. Contact the
nearest qualified specialist workshop.&
inoperative Bat‐
tery lowYou have attempted to switch on the auxiliary heating or to acti-
vate a departure time using the on-board computer after operating
the auxiliary heating twice.XLet the engine run for 10 seconds.
The auxiliary heating is operational again.The on-board voltage is too low. The auxiliary heating has switched
itself off or cannot be switched on ( Y page 136).XDrive for a longer distance.
The battery is being charged. The auxiliary heating is operational
again as soon as the on-board electrical system voltage is suf-
ficient.&
inoperative Refuel
vehicleThere is too little fuel in the fuel tank. The auxiliary heating cannot
be switched on ( Y page 136).XRefuel at the nearest filling station.Display messages253On-board computer and displaysZ

Display messagesPossible causes/consequences and M Solutions&
inoperative See
Owner's ManualThe auxiliary heating has a temporary malfunction or is faulty.XWhen the vehicle is on a level surface and the engine has cooled
down, make up to four attempts to switch on the auxiliary heat-
ing, waiting several minutes between each attempt
( Y page 136).XIf the auxiliary heating does not switch on, consult a qualified
specialist workshop.Telephone No
serviceYour vehicle is outside the network provider's transmitter/
receiver range.XWait until the mobile phone operational readiness symbol
appears in the multifunction display.¥
Top up washer fluidThe washer fluid level in the washer fluid reservoir has dropped
below the minimum.
i If, during the winter months, you do not add antifreeze to the
washer fluid, it may freeze in the washer fluid container. In this
case, the Top up washer fluid display message may appear
in the multifunction display.XTop up the washer fluid ( Y page 286).Wiper malfunction‐
ingThe windscreen wipers are defective.XVisit a qualified specialist workshop.Hazard warning
lamps malfunction‐
ingThe hazard warning lamps are faulty.XVisit a qualified specialist workshop.
Key
Display messagesPossible causes/consequences and M Solutions+
Key does not
belong to vehicleYou have put the wrong key in the ignition lock.XUse the correct key.+
You need a new keyThe key needs to be replaced.XVisit a qualified specialist workshop.254Display messagesOn-board computer and displays