2014 MERCEDES-BENZ CLA ignition

iMake sure that you clear the memory of
the integrated garage door opener before
selling the vehicle.
Compass
Calling up the compass
The compass displays in which compass
direction the vehicle is currently traveling:N,
NE,E,SE,S,SW,WorNW.
To receive a correct display in rear-view
mirror, the compass must be calibrated
and the magnetic field zone set.
Setting the compass
XDetermine your position using the following
zone maps.
North America zone map
South America zone map
XPush a round pen into opening
"(Ypage 276) for approximately three
seconds.
The zone currently selected appears in
compass display(Ypage 276).
XTo selectthe zone:push a round pen into
opening"(Ypage 276) until the desired
zone is selected.
If, after a few seconds, the display in
compass display(Ypage 276) changes
direction, the zone has been selected.
Calibrating the compass
XMake sure that there is sufficient space for
you to drive in a circle without impeding
traffic.
In order to calibrate the compass correctly,
do the following:
Rcalibrate the compass in the open and not
in the vicinity of steel structures or high-
voltage transmission lines.
Rswitch off electrical consumers such as the
climate control, windshield wipers or rear
window defroster.
Rclose all doors and the trunk lid.
XSwitch on the ignition.
XPush a round pen into opening
"(Ypage 276) for approximately six
276Features
Stowage and features

Useful information
iThis Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
iRead the information on qualified
specialist workshops: (Ypage 25).
Engine compartment
Hood
Important safety notes
GWARNING
If the hood is unlatched, it may open up when
the vehicle is in motion and block your view.
There is a risk of an accident.
Never unlatch the hood while driving.
GWARNING
When opening and closing the hood, it may
suddenly fall into the closed position.There is
a risk of injury to persons within range of
movement of the hood.
Open and close the hood only when no one is
within its range of movement.
GWARNING
Certain components in the engine
compartment, such as the engine, radiator
and parts of the exhaust system, can become
very hot. Working in the engine compartment
poses a risk of injury.
Where possible, let the engine cool down and
touch only the components described in the
following.
GWARNING
Opening the hood when the engine is
overheated or when there is a fire in the
engine compartmentcould expose you to hot
gases or other service products. There is a
risk of injury.
Let an overheated engine cool down before
opening the hood. If there is a fire in the
engine compartment, keep the hood closed
and contact the fire department.
GWARNING
The engine compartment contains moving
components. Certain components, such as
the radiator fan, may continue to run or start
again suddenly when the ignition is off. There
is a risk of injury.
If you need to do any work inside the engine
compartment,
Rswitch off the ignition
Rnever reach into the area where there is a
risk of danger from moving components,
such as the fan rotation area
Rkeep clothing away from moving parts
GWARNING
The ignition system and the fuel injection
system work under high voltage. If you touch
components which are under voltage, you
could get an electric shock. There is a risk of
injury.
Never touch components of the ignition
system or fuel injection system when the
ignition is switched on.
Opening the hood
GWARNING
When the hood is open and the windshield
wipers are set in motion,you can be injured
by the wiper linkage. There is a risk of injury.
Always switch off the windshield wipers and
the ignition before opening the hood.
280Engine compartment
Maintenance and care

Checking and adding other service
products
Checking coolantlevel
GWARNING
The engine cooling system is pressurized,
particularly when the engine is warm. When
opening the cap, you could be scalded by hot
coolant spraying out.There is a risk of injury.
Let the engine cool down before opening the
cap. Wear eye and hand protection when
opening the cap. Open the cap slowly half a
turn to allow pressure to escape.
!The coolant may only be checked and
corrected when the engine is cool (coolant
temperature below 104 ‡ (40 †).
Checking the coolant when the coolant
temperature is above 104 ‡ (40 †) may
result in damage to the engine or to the
engine cooling system.
Example
XPark the vehicle on a level surface.
Only check the coolant level when the
vehicle is on a level surface and the engine
has cooled down.
XTurn the SmartKey to position2in the
ignition lock (Ypage 137).
XCheck the coolant temperature display in
the instrument cluster.
The coolant temperature must be below
104 ‡ (40 †).
XTurn the SmartKey to position
0(Ypage 137) in the ignition lock.
XSlowly turn caphalf a turn counter-
clockwise to allow excess pressure to
escape.
XTurn capfurther counter-clockwise and
remove it.
If the coolant is at the level of marker bar
"in the filler neck when cold, there is
enough coolant in coolant expansion
tank.
XIf necessary, add coolant that has been
tested and approved by Mercedes-Benz.
XReplace capand turn it clockwise as far
as it will go.
For further information on coolant, see
(Ypage 349).
Adding washer fluid to the windshield
washer system/headlampcleaning
system
GWARNING
Windshield washer concentrate is highly
flammable. If it comes into contact with hot
engine components or the exhaust systemit
could ignite. There is a riskoffire and injury.
Make sure that no windshield washer
concentrate is spilled next to the filler neck.
Example
XTo open:pull capupwards by the tab.
XAdd the premixed washer fluid.
XTo close:press caponto the filler neck
until it engages.
Engine compartment283
Maintenance and care
Z

The washer fluid reservoir is used for both the
windshield washer system and the headlamp
cleaning system.
If the washer fluid level drops below the
recommended minimum of1liter, a message
appears in the multifunction display
prompting you to refill the washer fluid
(Ypage 239).
Further information on windshield washer
fluid/antifreeze (Ypage 350).
Maintenance
ASSYST PLUS
Service messages
The ASSYST PLUS service interval display
informs you of the nextservice due date.
Information on the type of service and service
intervals (see the separate Maintenance
Booklet).
You can obtain further information from an
authorized Mercedes-Benz Center or at
http://www.mbusa.com (USA only).
iThe ASSYST PLUS serviceinterval display
does not show any informationonthe
engine oil level. Observe the notes on the
engine oil level (Ypage 281).
The multifunction display shows a service
message for several seconds, e.g.:
RService A in .. Days
RService A Due
RService A Exceeded by .. Days
Depending on the operating conditions of the
vehicle, the remaining time or distance until
the next service due date is displayed.
The letterAorB, possibly in connection with
a number or another letter, shows the type of
service.Astands for a minor service andBfor
a major service.
You can obtain further information from an
authorized Mercedes-BenzCenter.
The ASSYST PLUS service interval display
does not take into accountany periods of
time during which the battery is
disconnected.
Maintaining the time-dependent service
schedule:
XNote down the service due date displayed
in the multifunctiondisplay before
disconnecting the battery.
or
XAfter reconnecting the battery, subtract
the battery disconnection periods fromthe
service date shown on the display.
Hidingaservice message
XPressor.
Displaying service messages
XSwitch on the ignition.
XUsingor, selecttheServ.
menu.
XPressorto select theASSYST
PLUSsubmenu and pressto confirm.
The service due date appears in the
multifunction display.
Information about Service
Resetting the ASSYST PLUS service
interval display
!If the ASSYST PLUS service interval
display has been inadvertently reset, this
setting can be corrected at a qualified
specialist workshop.
Have service work carried out as described
in the Maintenance Booklet. This may
otherwise lead to increased wear and
damage to the major assemblies or the
vehicle.
Aqualified specialist workshop, e.g. an
authorized Mercedes-BenzCenter, will reset
the ASSYST PLUS service interval display
after the service work has been carried out.
You can also obtain further information on
maintenance work, for example.
284Maintenance
Maintenance and care

These notes also apply to light alloy wheels
with a clear matte finish.
iThe vehicle should preferably be washed
by hand using a soft sponge, car shampoo
and plenty of water.
iUse only insect remover and car shampoo
from the range of recommended and
approved Mercedes-Benz care products.
Cleaning the windows
GWARNING
You could become trapped by the windshield
wipers if they start moving while cleaning the
windshield or wiper blades. There is a risk of
injury.
Always switch off the windshield wipers and
the ignition before cleaning the windshield or
wiper blades.
!Only fold the windshield wipers away from
the windshield when vertical. Otherwise,
you will damage the hood.
!Do not use dry cloths, abrasive products,
solvents or cleaning agents containing
solvents to clean the inside of the windows.
Do not touch the insides of the windows
with hard objects, e.g. an ice scraper or
ring. There is otherwise a risk of damaging
the windows.
!Clean the water drainage channels of the
windshield and the rear window at regular
intervals. Deposits such as leaves, petals
and pollen may under certain
circumstances prevent water from draining
away.This can lead to corrosion damage
and damage to electronic components.
XCleanthe inside and outside of the
windows with a damp cloth and a cleaning
product that is recommended and
approved by Mercedes-Benz.
Cleaning wiper blades
GWARNING
You could become trapped by the windshield
wipers if they start moving while cleaning the
windshield or wiper blades. There is a risk of
injury.
Always switch off the windshield wipers and
the ignition before cleaning the windshield or
wiper blades.
!Only fold the windshield wipers away from
the windshield when vertical. Otherwise,
you will damage the hood.
!Do not pull the wiper blade. Otherwise,
the wiper blade could be damaged.
!Do not clean wiper blades too often and
do not rub them too hard. Otherwise, the
graphite coating could be damaged. This
could cause wiper noise.
XFold the windshield wiper arms away from
the windshield.
XCarefully clean the wiper blades with a
damp cloth.
XFold the windshield wiper arms back again
before switching on the ignition.
!Hold the wiper arm securely when folding
back. The windshield could be damaged if
the wiper arm smacks against it suddenly.
Cleaning the exterior lighting
!Only use cleaning agents or cleaning
cloths which are suitable for plastic light
lenses. Unsuitable cleaning agents or
cleaning cloths could scratch or damage
the plastic light lenses.
XCleanthe plastic lenses of the exterior
lighting using a wet sponge and a mild
cleaning agent, e.g. Mercedes-Benzcar
shampoo or cleaning cloths.
288Care
Maintenance and care

Cleaning the mirror turn signals
!Only use cleaning agents or cleaning
cloths that are suitable for plastic lenses.
Unsuitable cleaning agents or cleaning
cloths could scratch or damage the plastic
lenses of the mirror turnsignals.
XClean the plastic lenses of the mirror turn
signals in the exterior mirror housing using
a wet sponge and a mild cleaning agent,
e.g. Mercedes-Benzcar shampoo or
cleaning cloths.
Cleaning the sensors
!If you clean the sensorswith a power
washer, make sure that you keep a
distance of at least 11.8in(30 cm) between
the vehicle and the power washer nozzle.
Information about the correct distance is
available from the equipment
manufacturer.
XClean sensorsof the driving systems
with water, car shampoo and a soft cloth.
Cleaning the rear view camera
!Do not cleanthe camera lens and the area
around the rear view camera with a power
washer.
XMake sure that the vehicle is stationary and
that the SmartKey is in position2in the
ignition lock.
XTo open the cover of the rear view
camera:with the audio system/COMAND
activated, press thebutton.
XSelectSystemby turning\rthe audio
system/COMAND controller and press\n
to confirm.
XSelectRearviewcameraand press\nto
confirm.
XSelectOpen camera coverand confirm
with\n.
The cover of the 360° camera opens.
XTo clean the rear view camera:use clear
water and a soft cloth to clean camera
lens.
Cleaning the exhaust pipes
Impurities combined with the effects of road
grit and corrosive environmental factors may
cause flash rust to form on the surface. You
can restore the original shine of the exhaust
pipe by cleaning it regularly, especially in
winter and after washing.
!Do not clean the exhaust pipe with acid-
based cleaning agents such as sanitary
cleansers or wheel cleaners.
XCleanthe exhaust pipe with a care product
tested and approved by Mercedes-Benz.
!AMG vehicles with black exhaust pipes:
do not use chrome polish to polish black
chromed screens. They will otherwise lose
Care289
Maintenance and care
Z

The tire-change tool kit contains:
RJack
RLug wrench
ROne pair of gloves
RFolding wheel chock
Flat tire
Preparing the vehicle
Your vehicle may be equipped with:
RMOExtended tires (tires with run-flat
properties) (Ypage 295)
Vehicle preparation is not necessary on
vehicles with MOExtended tires.
Ra TIREFIT kit (Ypage 294)
Information on changing/mounting a wheel
(Ypage 336).
XStop the vehicle on solid, non-slippery and
level ground, as far away as possible from
traffic.
XSwitch on the hazard warning lamps.
XSecure the vehicle against rolling away
(Ypage 153).
XIf possible, bring the frontwheels into the
straight-ahead position.
XSwitch off the engine.
XRemove the SmartKey from the ignition
lock.
XAll occupants must get out of the vehicle.
Make sure that they are not endangered as
they do so.
XMake sure that no one is near the danger
area while a wheel is being changed.
Anyone who is not directly assisting in the
wheel change should, for example, stand
behind the barrier.
XGet out of the vehicle. Pay attention to
traffic conditions when doing so.
XClose the driver's door.
iVehicles equipped with MOExtended tires
are not equipped with a TIREFIT kit at the
factory. It is therefore recommended that
you additionally equip your vehicle with a
TIREFIT kit if you mount tires that do not
feature run-flat properties, e.g. winter tires.
A TIREFIT kit can be obtained from a
qualified specialist workshop.
MOExtended tires (tires with run-flat
properties)
General notes
With MOExtended tires (tires with run flat
characteristics), you can continue to drive
your vehicle even if there is a total loss of
pressure in one or more tires. The affected
tire must not show any clearly visible damage.
You can recognize MOExtended tires by the
MOExtended marking which appears on the
sidewall of the tire. You will find this marking
next to the tire size designation, the load-
bearing capacity and the speed index
(Ypage 330).
MOExtended tires may only be used in
conjunction with an active tire pressure loss
warning system or with an active tire pressure
monitor.
If the pressure loss warning message
appears in the multifunction display:
RObserve the instructions in the display
messages (Ypage 234).
RCheck the tire for damage.
RIf driving on, observe the following notes.
The maximum driving distance is
approximately 50 miles (80 km) when the
vehicle is partially laden and approximately
18 miles (30 km) when the vehicle is fully
laden.
In addition to the vehicle load, the driving
distance possible depends upon:
RSpeed
RRoad condition
ROutside temperature
The driving distance possible in run-flat mode
may be reduced by extreme driving
Flat tire295
Breakdown assistance

RImmediately change out of clothing which
has come into contact with tire sealant.
RIf an allergic reaction occurs, seek medical
attention immediately.
Using the TIREFITkit
TIREFIT is a tire sealant.
You can use TIREFIT to seal punctures of up
to 0.16 in (4 mm), particularly those in the tire
tread. You can use TIREFIT at outside
temperatures down to4 ‡ (20 †).
TIREFIT sticker, 2-part
XDo not remove any foreign objects which
have penetrated the tire, e.g. screws or
nails.
XRemove the tire sealant bottle, the
accompanying TIREFIT sticker and the tire
inflation compressor from the stowage well
underneath the cargo compartment floor
(Ypage 294).
XAffix partof the TIREFIT sticker within
the driver's field of vision.
XAffix partof the TIREFIT sticker near the
valve on the wheel with the defective tire.
XRemove filler hose and plug"from the
bottom section of the tire inflation
compressor housing.
XSlide the yellow filler hose connector into
the mounting on yellow capof tire
sealant bottleuntil the plug engages.
XWith the sealing rings in front, slide yellow
capof tire sealant bottleinto the
mounting of tire inflation compressor
until the cap and both hooks engage.
XRemove the cap from valveon the faulty
tire.
XScrew filler hoseonto valve.
XInsert plug"into the socket of the
cigarette lighter (Ypage 262)orinto a 12 V
powersocket in your vehicle (Ypage 263).
XTurn the SmartKey to position1in the
ignition lock (Ypage 137).
XPress on/offswitch!on the tire inflation
compressor toON.
The tire inflationcompressor is switched
on. The tire is inflated.
Flat tire297
Breakdown assistance
Z