ignition MERCEDES-BENZ CLA 2019 Service Manual

XPress the8button on the steering wheel.
XConfirmYesYeswithv.
The RACE TIMER interrupts timing if you stop thevehicle and turn the SmartKey to positionGinthe ignition lock. If you turn the SmartKey topositionIand then pressvStartStartto con-firm, timing is continued.
Resetting the current lap
XStop the RACE TIMER.
XPress theYorebutton to selectReset LapReset Lap.
XPressvto reset the lap time to "0".
Deleting all laps
If you switch off the engine, the RACE TIMER isreset to "0" after 30 seconds. All laps aredeleted.
You cannot delete individual stored laps. If youhave stopped 16 laps, the current lap does nothave to be reset.
XReset the current lap.
XPressvto confirmResetReset.Reset Race-Timer?Reset Race-Timer?appears in the multi-function display.
XPress thedbutton to selectYesYesand pressthevbutton to confirm.All laps are deleted.
Overall statistics
CRACETIMER overall evaluation
DTotal time driven

Display messages
Introduction
General notes
Display messages appear in the multifunction display.
Display messages with graphic displays may be shown in simplified form in the Operator's Manualand may therefore differ from the multifunction display.
Please respond in accordance with the display messages and follow the additional notes in thisOperator's Manual.
Certain display messages are accompanied by an audible warning tone or a continuous tone.
When the ignition is switched off, all display messages are deleted, apart from some high-prioritydisplay messages. Once the causes of the high-priority display messages have been rectified, thecorresponding display messages are also deleted.
When you stop and park the vehicle, please observe the notes on:
RHOLD function (Ypage 158)
RParking (Ypage 142)
Hiding display messages
XPress thevor8button on the steering wheel.The multifunction display hides the display message.
The multifunction display shows high-priority display messages in red. Some high-priority displaymessages cannot be hidden.
The multifunction display shows these messages continuously until the causes for the messageshave been remedied.
Message memory
The on-board computer saves certain display messages in themessage memory. You can call upthe display messages:
XPress theYorebutton on the steering wheel to select theServ.Serv.menu.If there are display messages, the multifunction display shows2 Messages2 Messages, for example.
XPress thecordbutton to select the entry, e.g.2 Messages2 Messages.
XPressvto confirm.
XPress thecordbutton to scroll through the display messages.
Displaymessages193
On-b oard computer and displays
Z

Display messagesPossible causes/consequences andPPSolutions
The yellow$warning lamp and the redI(USA only) or$(Canada only) indicator lamp light up.
The electric parking brake is malfunctioning.
To release:
XSwitch off the ignition and turn it back on.
XRelease the electric parking brake manually.
or
XRelease the electric parking brake automatically (Ypage 143).
If the electric parking brake still cannot be released:
XDo not drive on.
XConsult a qualified specialist workshop.
The redI(USA only) or$(Canada only) indicator lamp flashesand the yellow$warning lamp lights up.
The electric parking brake is malfunctioning.
To release:
XSwitch off the ignition and turn it back on.
XRelease the electric parking brake manually.
To apply:
XSwitch off the ignition and turn it back on.
XApply the electric parking brake manually.
If the redI(USA only) or$(Canada only) indicator lamp con-tinues to flash:
XDo not drive on.
XSecure the vehicle against rolling away (Ypage 312).
XShift the transmission to position].
XTurn the front wheels towards the curb.
XConsult a qualified specialist workshop.
Displaymessages197
On-b oard computer and displays
Z

Display messagesPossible causes/consequences andPPSolutions
The yellow$warning lamp lights up. The redI(USA only)or$(Canada only) indicator lamp flashes for about ten secondsafter the electric parking brake has been applied or released. It thengoes out or remains lit.
The electric parking brake is malfunctioning.
XSwitch off the ignition and turn it back on.
XApply the electric parking brake.
If it is not possible to apply the electric parking brake:
XShift the transmission to position].
XVisit a qualified specialist workshop.
If it is not possible to release the electric parking brake manually:
XRelease the electric parking brake automatically (Ypage 143).
If the electric parking brake still cannot be released:
XConsult a qualified specialist workshop.
The yellow$warning lamp lights up. If you manually apply orrelease the electric parking brake, the redI(USA only) or$(Canada only) indicator lamp flashes.
The electric parking brake is malfunctioning. It is not possible to applythe electric parking brake manually.
XShift the transmission to position]as the electric parking brake isnot applied automatically.
XVisit a qualified specialist workshop.
I(USA
only)$(Canada
only)
Parking Brake Inop‐Parking Brake Inop‐erativeerative
The yellow$warning lamp lights up. The redI(USA only)or$(Canada only) indicator lamp flashes for about ten secondsafter the electric parking brake has been applied or released. It thengoes out or remains lit.
The electric parking brake is malfunctioning, e.g. because of over-voltage or undervoltage.
XRemove the cause for the overvoltage or undervoltage, e.g. bycharging the battery or restarting the engine.
XApply or release the electric parking brake.
If it remains impossible to apply or release the electric parking brake:
XSwitch off the ignition and turn it back on.
XApply or release the electric parking brake.
If the electric parking brake still cannot be released:
XConsult a qualified specialist workshop.
If the electric parking brake still cannot be applied:
XVisit a qualified specialist workshop.
198Displaymessages
On-b oard computer and displays

Display messagesPossible causes/consequences andPPSolutions
FrontFrontPassengerPassengerAir‐Air‐bag Disabled Seebag Disabled SeeOperator's ManualOperator's Manual
The front-passenger air bag and front-passenger knee bag are deac-tivated during the journey, although:
Ran adult
or
Ra person of the corresponding stature is on the front-passenger seat
If additional forces are applied to the seat, the system may interpretthe occupant's weight as lower than it actually is.
GWARNING
The front-passenger front air bag and front passenger knee bag maynot be triggered in the event of an accident.
There is an increased risk of injury.
XPull over and stop the vehicle safely as soon as possible, payingattention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 142).
XSwitch the ignition off.
XHave the occupant on the front-passenger seat get out of the vehi-cle.
XKeep the seat unoccupied, close the front-passenger door andswitch on the ignition.
XObserve the PASSENGER AIR BAG indicator lamps in the centerconsole and the multifunction display and check the following:
Seat unoccupied and ignition switched on:
Ra self-diagnosis is carried out. The PASSENGER AIR BAG OFF andPASSENGER AIR BAG ON indicator lamps must light up simulta-neously for approximately six seconds.
Rthe PASSENGER AIR BAG OFF indicator lamp must then light upand remain lit after the self-diagnosis. If the indicator lamp is on,OCS (Occupant Classification System) has deactivated the front-passenger front air bag and front-passenger knee bag(Ypage 48)
RtheFront Passenger Airbag Enabled See Operator'sFront Passenger Airbag Enabled See Operator'sManualManualorFront Passenger Airbag Disabled See Opera‐Front Passenger Airbag Disabled See Opera‐tor'stor'sManualManualdisplay messages must not be shown on the mul-tifunction display
XWait for a period of at least 60 seconds until the necessary systemchecks have been completed.
XMake sure that the display messages do not appear in the multi-function display.
If these conditions are fulfilled, the front-passenger seat can be occu-pied again. Whether the PASSENGER AIR BAG OFF or ON indicatorlamp remains lit or goes out depends on how OCS classifies the occu-pant.
If the conditions are not fulfilled, the system is not operating correctly.
XVisit a qualified specialist workshop immediately.
Further information about the Occupant Classification System(Ypage 48).
202Displaymessages
On-b oard computer and displays

Display messagesPossible causes/consequences andPPSolutions
FrontFrontPassengerPassengerAir‐Air‐bag Enabled Seebag Enabled SeeOperator's ManualOperator's Manual
The front-passenger air bag and front-passenger knee bag are enabledduring the journey, even though:
Ra child, a small adult or an object weighing less than the system'sweight threshold is located on the front-passenger seat
or
Rthe front-passenger seat is unoccupied
The system may detect objects or forces applying additional weight onthe seat.
GWARNING
The front-passenger front air bag and front-passenger knee bag maybe triggered unintentionally.
There is an increased risk of injury.
XPull over and stop the vehicle safely as soon as possible, payingattention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 142).
XSwitch the ignition off.
XOpen the front-passenger door.
XRemove the child and the child restraint system from the front-passenger seat.
XMake sure that there are no objects on the seat adding to theweight.The system might otherwise detect the additional weight and inter-pret the seat occupant's weight as greater than it actually is.
XKeep the seat unoccupied, close the front-passenger door andswitch on the ignition.
XObserve the PASSENGER AIR BAG indicator lamps in the centerconsole and the multifunction display and check the following:
Seat unoccupied and ignition switched on:
Ra self-diagnosis is carried out. The PASSENGER AIR BAG OFF andPASSENGER AIR BAG ON indicator lamps must light up simulta-neously for approximately six seconds.
Rthe PASSENGER AIR BAG OFF indicator lamp must then light upand remain lit after the self-diagnosis. If the indicator lamp is on,OCS has deactivated the front-passenger front air bag and front-passenger knee air bag (Ypage 48)
RtheFront Passenger Airbag Enabled See Operator'sFront Passenger Airbag Enabled See Operator'sManualManualorFront Passenger Airbag Disabled See Opera‐Front Passenger Airbag Disabled See Opera‐tor'stor'sManualManualdisplay messages must not be shown on the mul-tifunction display
XWait for a period of at least 60 seconds until the necessary systemchecks have been completed.
XMake sure that the display messages do not appear in the multi-function display.
If these conditions are fulfilled, the front-passenger seat can be occu-pied again. Whether the PASSENGER AIR BAG OFF or ON indicatorlamp remains lit or goes out depends on how OCS classifies the occu-pant.
Displaymessages203
On-b oard computer and displays
Z

Warning and indicator lamps in the instrument cluster
General notes
Some systems carry out a self-diagnosis when the ignition is switched on. Therefore, some indicatorand warning lamps may light up or flash temporarily. This behavior is non-critical.
These indicator and warning lamps only indicate a malfunction if they light up or flash after startingthe engine or whilst driving.
Safety
Seat belts
Warning/indicatorlamp
QQSignal type
Possible causes/consequences andPPSolutions

The destination download function is availableif:
Rthe vehicle is equipped with a navigation sys-tem.
Rthe relevant mobile phone network is availa-ble and data transfer is possible.
Route Assistance
This service is part of the Mercedes me connectPLUS Package and cannot be obtained sepa-rately.
You can use the Route Assistance function evenif the vehicle is not equipped with a navigationsystem.
Within the framework of this service, you receivea professional and reliable form of navigationsupport without having to leave your vehicle.
The customer service representative finds asuitable route depending on your vehicle's cur-rent position and the desired destination. Youwill then be guided live through the current routesection.
Search and Send
General notes
To use "Search & Send", your vehicle must beequipped with Mercedes me connect and a nav-igation system. Additionally, a Mercedes meconnect service subscription must be comple-ted.
"Search & Send" is a destination entry service. Adestination address found on Google Maps™can be transferred via Mercedes me connectdirectly to your vehicle's navigation system.
Specifying and sending the destination
address
XGo to the website http://maps.google.comand enter a destination address into the entryfield.
XTo send the destination address to the e-mail address of your Mercedes me con-nect account:click the corresponding but-ton on the website.
Example:
If you select 'Send to vehicle' and then'Mercedes-Benz', the destination address willbe sent to your vehicle.
XWhen the "Send" dialog window appears:
Enter the e-mail address you specified whensetting up your Mercedes me connectaccount into the corresponding field.
XClick "Send".
Information on specific commands such as"Address entry" or "Send" can be found on thewebsite.
Calling up a transmitted destination
address
XTurn the SmartKey to positionHin the igni-tion lock (Ypage 123).The transmitted destination address is loadedinto the vehicle's navigation system.
A display message appears, asking whethernavigation should be started.
XSelectYesYesby turning3or sliding1the controller and confirm with7.The system calculates the route and subse-quently starts the route guidance with theaddress entered.
If you selectNoNothe address can be stored inthe address book.
If you have sent more than one destinationaddress, each individual destination must beconfirmed separately.
Destination addresses are loaded in the sameorder as the order in which they were sent.
If you have multiple Mercedes-Benz vehicleswith Mercedes me connect and activeMercedes me connect accounts:
If multiple vehicles are registered under thesame e-mail address, the destination will besent to all the vehicles.
Vehicle remote opening
You can use the vehicle remote opening if youhave unintentionally locked your vehicle and areplacement SmartKey is not available.
The vehicle can be unlocked by the Mercedes-Benz Customer Assistance Center.
The vehicle can be immediately unlockedremotely within four days of the ignition beingturned off. After this time, remote unlockingmay be delayed by 15 to 60 minutes. After30 days, the vehicle can no longer be unlockedremotely.
The vehicle remote opening feature is availableif the relevant mobile phone network is availableand a data connection is possible.
XContact the following service hotlines:
252Features
Stowage and features

Mercedes-Benz Customer Assistance Centerat 1-800-FOR-MERCedes (1-800-367-6372)or 1-866-990-9007
XYou will be asked for your password.
XReturn to your vehicle at the time agreed uponwith the Mercedes-Benz Customer Assis-tance Center.
Alternatively, the vehicle can be opened via:
Rthe Internet, under the "Owners Online" sec-tion
Rtelephone applications (e.g. for iPhone®,Android™)
To do this, you will need your identification num-ber and password.
Vehicle remote closing
The valet locking feature can be used when youhave forgotten to lock the vehicle and you are nolonger nearby.
The vehicle can then be locked by the Mercedes-Benz Customer Assistance Center.
The vehicle can be immediately locked remotelyup to four days after the ignition was lastswitched off. After this time, the valet lockingmay be delayed by 15 to 60 minutes. After30 days the vehicle can no longer be lockedremotely.
The valet locking feature is available if the rele-vant mobile phone network is available and adata connection is possible.
XContact the following service hotlines:
Mercedes-Benz Customer Assistance Centerat 1-800-FOR-MERCedes (1-800-367-6372)or 1-866-990-9007You will be asked for your password.
The next time you are inside the vehicle and youswitch on the ignition, theDoors LockedDoors LockedRemotelyRemotelymessage appears in the multifunctiondisplay.
Alternatively, the vehicle can be locked via:
Rthe Internet, under the "Owners Online" sec-tion
Rtelephone applications (e.g. for iPhone®,Android™)
To do this, you will need your identification num-ber and password.
Stolen vehicle recovery service
If your vehicle has been stolen:
XNotify the police.The police will issue a numbered incidentreport.
XThis number will be forwarded to theMercedes-Benz Customer Assistance Centertogether with your PIN.The Mercedes-Benz Customer AssistanceCenter then tries to locate the system. TheMercedes-Benz Customer Assistance Centercontacts you and the local law enforcementagency if the vehicle is located.
However, only the law enforcement agency isinformed of the location of the vehicle.
If the anti-theft alarm system is activated forlonger than 30 seconds, Mercedes me connectautomatically notifies the Mercedes-Benz Cus-tomer Assistance Center.
Vehicle Health Check
With the Vehicle Health Check, the CustomerAssistance Center can provide improved sup-port for problems with your vehicle. During anexisting call, vehicle data is transferred to theCustomer Assistance Center.
The customer service representative can usethe received data to decide what kind of assis-tance is required. You are then, for example,guided to the nearest Mercedes-Benz ServiceCenter or a recovery vehicle is called.
If vehicle data needs to be transferred during anMB Info call or a Roadside Assistance call, this isinitiated by the Customer Assistance Center.
TheRoadside Assistance ConnectedRoadside Assistance Connectedmes-sage appears in the display. If the Vehicle HealthCheck can be started, theRequestRequestforforVehi‐Vehi‐cle Diagnostics Received Start vehi‐cle Diagnostics Received Start vehi‐cle diagnostics?cle diagnostics?message appears in thedisplay.
XPress theYesYesbutton to confirm the message.
XIf theVehicle Diagnostics PleaseVehicle Diagnostics PleaseStart IgnitionStart Ignitionmessage appears: turn theSmartKey to positionHin the ignition lock(Ypage 123).
XIf thePlease follow the instructionsPlease follow the instructionsreceivedreceivedbybyphonephoneandandmovemoveyouryourvehi‐vehi‐cle to a safe position.cle to a safe position.messageappears: please follow the instructions
Features253
Stowage and features
Z

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. Before
every trip, ensure that the hood is locked.
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
Opening the hood when the engine is over-
heated or when there is a fire in the engine
compartment could 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
Rremove jewelry and watches
Rkeep items of clothing and hair, for exam-
ple, away from moving parts
GWARNING
The ignition system and the fuel injection sys-
tem 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 sys-
tem or fuel injection system when the ignition
is switched on.
To ensure the flow of fresh air through the airvents into the vehicle interior, please observethe following notes (Ypage 121):
Opening the hood
GWARNING
Certain components in the engine compart-
ment, 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
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.
!Make sure that the windshield wipers arenot folded away from the windshield. Youcould otherwise damage the windshield wip-ers or the hood.
260Engine compartment
Maintenance and care