service b5 MERCEDES-BENZ CLA-Class 2017 C117 Owner's Guide

iAfter a time, the electric parking brake
secures the vehicle and relieves the service
brake.
When the HOLD function is activated, the trans-
mission is shifted automatically to position Pif:
Rthe driver's seat belt is not fastened and the
driver's door is open.
Rthe engine is switched off, unless it is auto-
matically switched off by the ECO start/stop
function.
The electric parking brake secures the vehicle
automatically if the HOLD function is activated
when the vehicle is stationary and:
Ra system malfunction occurs.
Rthe power supply is insufficient.
Start-off assist (except Mercedes-
AMG vehicles)
Important safety notes
GWARNING
If you use start-off assist, individual wheels
may start to spin and the vehicle may skid. If
ESP
®is deactivated, there is a greater danger
of skidding and having an accident. Make sure
that no persons or obstacles are in the vicinity
of the vehicle.
Start-off assist enables optimum acceleration
from a standstill. For this, a suitably high-grip
road surface is required, along with the tires and vehicle being in proper operating condition.
Do not activate start-off assist on public roads.
Observe the safety notes on driving safety sys-
tems (
Ypage 60).
Be sure to read the safety notes and information
on ESP
®(Ypage 63).
Activating start-off assist
XDeactivate ESP®(Ypage 182).
XTurn the steering wheel to the straight-ahead
position.
XDepress the brake pedal hard with your left
foot and keep it depressed.
XShift the transmission to position D.
XUse the DYNAMIC SELECT button to select
the Sdrive program (Ypage 127).
XQuickly depress the accelerator pedal fully.
XTake your foot off the brake, but keep the
accelerator pedal depressed.
The vehicle pulls away at maximum acceler-
ation.
iActivate ESP®as soon as the acceleration
process has ended. ESP®will otherwise not
be able to stabilize the vehicle if the vehicle
starts to skid or a wheel starts to spin.
Canceling start-off assist
XRemove your foot from the accelerator pedal.
XReactivate ESP®.
RACE START (Mercedes-AMG vehi-
cles)
Important safety notes
iRACE START must not be used on normal
roads. RACE START must only be activated
and used on dedicated road circuits, outside
of public road use.
iRACE START is only available in
Mercedes‑AMG vehicles.
GWARNING
If you use RACE START, individual tires may
start to spin and the vehicle could skid.
Depending on the selected ESP
®mode, there
is an increased risk of skidding and having an accident. Make sure that no persons, animals
or obstacles are within range of the vehicle.
RACE START enables optimal acceleration from
a standing start. For this, a suitably high-grip
road surface is required, along with the tires and
vehicle being in proper operating condition.
iObserve the safety notes on driving safety
systems (Ypage 60).
Be sure to read the safety notes and informa- tion on ESP
®(Ypage 63).
Conditions for activation
You can activate RACE START if:
Rthe doors, hood and the trunk lid are closed.
Rthe engine is running and the transmission,
all-wheel drive clutch and the engine are at
operating temperature.
Driving systems157
Driving an d parking
Z

XIf necessary, take a break.
XConfirm the message by pressing thea
button on the steering wheel.
On long journeys, take regular breaks in good
time to allow yourself to rest properly. If you do
not take a break and ATTENTION ASSIST still
detects increasing lapses in concentration, you
will be warned again after 15 minutes at the
earliest. This will only happen if ATTEN-
TION ASSIST still detects typical indicators of
fatigue or increasing lapses in concentration.
Vehicles with the COMAND multimedia sys-
tem: if a warning is output in the multifunction
display, a service station search is performed in
the multimedia system. You can select a service
station and navigation to this service station will
then begin. This function can be activated or
deactivated in the multimedia system; see the
Digital Operator's Manual.
Lane Tracking package
General notes
The Lane Tracking package consists of Blind
Spot Assist (Ypage 171) and Lane Keeping
Assist (Ypage 172).
Blind Spot Assist
General notes
Blind Spot Assist monitors the areas on either
side of the vehicle that are not visible to the
driver with two lateral, rear-facing radar sen-
sors. A warning display in the exterior mirrors
draws your attention to vehicles detected in the
monitored area. If you then switch on the cor-
responding turn signal to change lane, you will
also receive an optical and audible warning.
Blind Spot Assist supports you from a speed of
approximately 20 mph (30 km/h).
Important safety notes
GWARNING
Blind Spot Assist does not react to:
Rvehicles overtaken too closely on the side,
placing them in the blind spot area
Rvehicles which approach with a large speed
differential and overtake your vehicle
As a result, Blind Spot Assist may not give
warnings in such situations. There is a risk of
an accident.
Always observe the traffic conditions care-
fully, and maintain a safe lateral distance.
Blind Spot Assist is only an aid. It may fail to
detect some vehicles and is no substitute for
attentive driving. Always ensure that there is
sufficient distance to the side for other road
users and obstacles.
iUSA only:
This device has been approved by the FCC as
a "Vehicular Radar System". The radar sensor
is intended for use in an automotive radar
system only. Removing, tampering with, or
altering the device will void any warranties,
and is not permitted by the FCC. Do not tam-
per with, alter, or use in any non-approved
way.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
Radar sensors
The radar sensors for Blind Spot Assist are inte-
grated into the rear bumper. Make sure that the
bumpers are free from dirt, ice or slush. The
sensors must not be covered, for example by
cycle racks or overhanging loads. Following a
severe impact or in the event of damage to the
bumpers, have the function of the radar sensors
checked at a qualified specialist workshop.
Blind Spot Assist may no longer work properly.
Monitoring range of the sensors
In particular, the detection of obstacles can be
impaired if:
Rthere is dirt on the sensors or anything else
covering the sensors
Rthere is poor visibility, e.g. due to fog, heavy
rain or snow
Ra narrow vehicle traveling in front, e.g. a
motorbike or bicycle
Rthe road has very wide lanes
Rthe road has narrow lanes
Ryou are not driving in the middle of the lane
Rthere are barriers or other road boundaries
Vehicles in the monitoring range are then not
indicated.
Driving systems171
Driving and parking
Z

Coolant temperature gauge
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.
!A display message is shown if the coolant
temperature is too high.
If the coolant temperature is over 248 ‡
(120 †), do not continue driving. The engine
will otherwise be damaged.
The coolant temperature gage is in the instru-
ment cluster on the right-hand side (
Ypage 32).
The Hmarking in the coolant temperature gauge
corresponds to a coolant temperature of
approximately 248 ‡ (120 †).
Under normal operating conditions and at the
correct coolant level, the coolant temperature
gauge may rise to the Hmarking.
Operating the on-board computer
Overview
:Multifunction display
;Right control panel
=Left control panel
XTo activate the on-board computer: turn
the SmartKey to position 1in the ignition lock.
You can control the multifunction display and
the settings in the on-board computer using the
buttons on the multifunction steering wheel.
Left control panel
=
;RCalls up the menu and menu bar
9
:Press briefly:
RScrolls in lists
RSelects a submenu or function
RIn the Audiomenu: selects the
previous or next station, when the
preset list or station list is active,
or an audio track or video scene
RIn the Tel(telephone) menu:
switches to the phone book and
selects a name or telephone num-
ber
Displays and operation175
On-board computer and displays
Z

cle while driving, you will be distracted from
traffic conditions. You could also lose control
of the vehicle. There is a risk of an accident.
Only operate the equipment when the traffic
situation permits. If you are not sure that thisis possible, park the vehicle paying attention
to traffic conditions and operate the equip-
ment when the vehicle is stationary.
When telephoning, you must observe the legal
requirements for the country in which you are
currently driving.
XSwitch on the mobile phone (see the manu-
facturer’s operating instructions).
XSwitch on the multimedia system (see sepa-
rate operating instructions).
XEstablish a Bluetooth®connection to the mul-
timedia system; see the separate operating
instructions.
XPress the =or; button on the steering
wheel to select the Telmenu.
You will see one of the following display mes-
sages in the multifunction display:
RTelephone READYor the name of the net-
work provider: the mobile phone has found a
network and is ready to receive.
RTelephoneNoservice: there is no network
available or the mobile phone is searching for
a network.
Accepting a call
If someone calls you when you are in the Telmenu, a display message appears in the multi-
function display.
You can accept a call at any time, even if you are
not in theTel
menu.
XPress the6button on the steering wheel
to accept an incoming call.
Rejecting or ending a call
You can end or reject a call anytime, even if you
are not in the Telmenu.
XPress the~button on the steering wheel
to reject or end a call.
Selecting an entry in the phone book
XPress the =or; button on the steering
wheel to select the Telmenu.
XPress the9,:ora button to
switch to the phone book.
XAuthorize access to the phone book on the
phone.
XPress the 9or: button to select the
desired name.
or
XTo begin rapid scrolling: press and hold the
9 or: button for longer than one sec-
ond.
Rapid scrolling stops when you release the
button or reach the end of the list.
XIf only one telephone number is stored for
a name: press the 6ora button to
start dialing.
or
XIf there is more than one number for a
particular name: press the6ora
button to display the numbers.
XPress the 9or: button to select the
number you want to dial.
XPress the 6ora button to start dialing.
or
XIf you do not want to make a call: press the
~ or% button.
Redialing
The on-board computer saves the last names or
numbers dialed in the redial memory.
XPress the =or; button on the steering
wheel to select the Telmenu.
XPress the6button to switch to the redial
memory.
XPress the 9or: button to select the
desired name or number.
XPress the 6ora button to start dialing.
or
XIf you do not want to make the call: press
the ~ or% button.
Menus and submenus181
On-board computer and displays
Z

XPressato confirm.
The current selection appears.
XTo activate/deactivate: press theabut-
ton again.
When Active Brake Assist is deactivated, the
æ symbol appears in the multifunction dis-
play in the assistance graphic display.
Further information on Active Brake Assist
(
Ypage 61).
Activating/deactivating ATTENTION
ASSIST
XPress the =or; button on the steering
wheel to select the DriveAssistmenu.
XPress the9or: button to select
Attention Assist.
XPress ato confirm.
The current selection appears.
XPress ato confirm.
XPress the :or9 button to set Off,
Standardor Sensitive.
XPress the abutton to save the setting.
When ATTENTION ASSIST is deactivated, the
é symbol appears in the multifunction dis-
play in the assistance graphics display.
For further information about ATTENTION
ASSIST, see (
Ypage 169).
Activating/deactivating Blind Spot
Assist
XPress the =or; button on the steering
wheel to select the DriveAssistmenu.
XPress the9or: button to select
Blind Spot Assist.
XPress ato confirm.
The current selection appears.
XTo activate/deactivate: press theabut-
ton again.
For further information about Blind Spot Assist,
see (
Ypage 171).
Activating/deactivating Lane Keeping
Assist
XPress the =or; button on the steering
wheel to select the DriveAssistmenu.
XPress the9or: button to select
Lane Keeping Assist.
XPress ato confirm.
The current selection appears.
XPress aagain to confirm.
XPress the :or9 button to set Off,
Standardor Adaptive.
XPress the abutton to save the setting.
When Lane Keeping Assist is activated, the
multifunction display shows the lane mark-
ings as bright lines in the assistance graphic.
For further information about Lane Keeping
Assist, see (
Ypage 172).
Service menu
Depending on the equipment installed in the
vehicle, you have the following options in the
Serv.
menu:
RCalling up display messages in message
memory (Ypage 188)
RRestarting the tire pressure loss warning sys- tem (Canada only) (Ypage 289)
RChecking the tire pressure electronically
(USA only) (Ypage 289)
RCalling up the service due date
(Ypage 258)
Settings menu
Introduction
Depending on the equipment installed in the
vehicle, you have the following options in the
Sett.
menu:
RChanging the instrument cluster settings
RChanging the light settings
RChanging the vehicle settings
RChanging the convenience settings
RRestoring the factory settings
Instrument cluster
Selecting the distance unit
The Display Unit Speed-/Odometer:func-
tion allows you to choose whether certain dis-
plays appear in kilometers or miles in the mul-
tifunction display.
Menus and submenus183
On-board computer and displays
Z

XPress the=or; button on the steering
wheel to select the Sett.menu.
XPress the:or9 button to select the
Instrument Clustersubmenu.
XPress ato confirm.
XPress the :or9 button to select the
Display Unit Speed-/Odometerfunction.
You will see the selected setting: kmormiles.
XPress the abutton to save the setting.
The selected unit of measurement for distance
applies to:
RDigital speedometer in the Tripmenu
ROdometer and the trip odometer
RTrip computer
RCurrent fuel consumption and approximate
range
RNavigation instructions in the Navimenu
RCruise control
RDistance Pilot DISTRONIC
RASSYST PLUS service interval display
Switching the additional speedometer
on/off
If the additional speedometer is switched on,
the speed is shown in the status area of the
multifunction display instead of the outside tem-
perature.
The speed display is inverse to the speedome-
ter.
XPress the=or; button on the steering
wheel to select the Sett.menu.
XPress the:or9 button to select the
Instrument Clustersubmenu.
XPress ato confirm.
XPress the :or9 button to select the
Speedometer [km/h]or Speedometer[mph]function.
You will see the selected setting: OnorOff.
XPress the abutton to save the setting.
Selecting permanent display
ThePermanent Display:function allows you
to choose whether the multifunction display
always shows the outside temperature or the
speed.
The speed display is inverse to the speedome-
ter.
XPress the =or; button on the steering
wheel to select the Sett.menu.
XPress the:or9 button to select the
Instrument Clustersubmenu.
XPress ato confirm.
XPress the :or9 button to select the
Permanent Display:function.
The current setting Outside Temperature
orSpeedometer [km/h]/Speedometer[mph]appears.
XPress the abutton to save the setting.
Lights
Switching the daytime running lamps on/
off
This function is not available in Canada.
XPress the =or; button on the steering
wheel to select the Sett.menu.
XPress the:or9 button to select the
Lightsubmenu.
XPress ato confirm.
XPress the :or9 button to select the
Daytime Running Lightsfunction.
If the DaytimeRunningLightsfunction has
been switched on, the multifunction display
shows the cone of light and the Wsymbol
in orange.
XPress the abutton to save the setting.
Further information on daytime running lamps
(
Ypage 99).
Vehicle
Activating/deactivating the automatic
door locking mechanism
XPress the =or; button on the steering
wheel to select the Sett.menu.
XPress the:or9 button to select the
Vehiclesubmenu.
XPress ato confirm.
XPress the :or9 button to select the
Automatic Door Lockfunction.
If the Automatic Door Lockfunction is
switched on, the multifunction display shows
the doors in orange.
XPress the abutton to save the setting.
If you activate the Automatic door locks
function, the vehicle is centrally locked above a
speed of around 9 mph (15 km/h).
184Menus and submenus
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
6
RearLef tMalfunc‐tio nServic eRequiredorRea rRight MalfunctionServic eRequired
The rear left-han dor right-hand restrain tsystem is malfunctioning .
The 6 warning lamp also lights up in th einstrumen tcluster.
GWARNIN G
The air bags or Emergency Tensioning Devices may either be triggered
unintentionally or, in th eevent of an accident, may no tbe triggered .
There is an increased ris kof injury.
XVisit aqualified specialist workshop immediately.
6
Lef tSid eCurtai nAirbag MalfunctionServiceRequiredor
Right Sid eCurtai n
Airbag MalfunctionServiceRequired
The left-han dor right-hand window curtai nair bag is malfunctioning .
The 6 warning lamp also lights up in th einstrumen tcluster.
GWARNIN G
The lef tor right window curtai nair bag may either be triggered unin-
tentionally or, in th eevent of an accident, may no tbe triggered .
There is an increased ris kof injury.
XVisit aqualified specialist workshop immediately.
196Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
TransmissionNotinPRis kof Vehicl eRollingAwa y
The driver's door is open or no tfull yclosed and th etransmission is in
position R,N or D.
A warning tone also sounds.
GWARNIN G
The vehicl emay rol laway.
There is aris kof an accident.
XShift th etransmission to position P.
XSecureth evehicl eagainst rollin gaway (Ypage 140).
XCloseth edriver's door completely.
Servic eRequiredDoNot Shift GearsVisit Dealer
You canno tchang eth etransmission position due to amalfunction .
A warning tone also sounds.
If transmission position Dis selected:
XDrive to aqualified specialist workshop without shifting th etrans -
mission from position D.
If transmission position R,N or Pis selected:
XSecur eth evehicl eagainst rollin gaway (Ypage 140).
XNotify aqualified specialist workshop or breakdown service.
Onl yShift to 'P'whe nVehicl eisSta‐tionar y
The vehicl eis moving .
XPull overand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XShift th etransmission to position P.
To Engage Trans‐miss. PositionRFirst DepresstheBrake
You hav eattempte dto shift from position Dor Nto transmission
position R.
XShift th etransmission to position Rwhile depressing th ebrak e
pedal .
ReversingNotPossi‐bleServic eRequiredThe automatic transmission is malfunctioning .You canno tbac kup.
XVisit aqualified specialist workshop .
Transmission Mal‐functionThe automatic transmission is malfunctioning .
XVisitaqualified specialist workshop .
Transmission Mal‐function StopThe automatic transmission is malfunctioning .
XPull overand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 140).
XConsult aqualified specialist workshop .
212Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
CAt least onedoor is open . Awarning tone also sounds.
XClos eall th edoors.
Ð
Power Steering Mal ‐function See Opera‐tor's Manual
The powersteering is malfunctioning .
A warning tone also sounds.
GWARNIN G
You will need to use mor eforce to steer .
There is aris kof an accident.
XChec kwhether you are able to apply th eextr aforce required.
If you ar eabl eto steer safely:
XDrive on carefully.
XVisit aqualified specialist workshop immediately.
If you ar eunable to steer safely:
XDo no tdrive on .
XConsult aqualified specialist workshop .
Phone No ServiceYour vehicleis outside th enetwork provider' stransmitter/receiver
range.
XWait until th emobile phone operational readiness symbol appear s
in th emultifunction display.
¥
Check Washer Fluid
The washer flui dlevel in th ewasher flui dreservoir has dropped belo w
th eminimum .
XAddwasher flui d (Ypage 257).
Wiper Malfunction‐ingThe windshield wiper sare malfunctioning .
XVisitaqualified specialist workshop .
Hazard WarningFlashers Malfunc‐tioning
The hazard warning lamp sare faulty.
XVisit aqualified specialist workshop .
SmartKey
Display messagesPossible causes/consequences and MSolutions
Â
KeyDoesNotBelongto Vehicl e
You haveput th ewrong SmartKey in th eignition lock.
XUse th ecorrec tSmartKey.
Â
Tak eYou rKey fro mIgnition
The SmartKey is in th eignition lock.
A warning tone sounds
XRemove th eSmartKey.
214Display messages
On-board computer and displays

Socket in the rear compartment center
console
XPull the cover out by the top of the handle
edge.
XLift up the cover of the socket.
Socket in the trunk
XLift up the cover of socket:.
mbrace
General notes
The mbrace system is only available in the USA.
You must have a license agreement to activate
the mbrace service. Make sure that your system
is activated and operational. To log in, press the
ï MB Info call button. If any of the steps
mentioned are not carried out, the system may
not be activated.
If you have questions about the activation, con-
tact one of the following telephone hotlines:
Mercedes-Benz Customer Assistance Center at
1-800-FOR-MERCedes (1-800-367-6372) or
1-866-990-9007
Shortly after successfully registering with the
mbrace service, a user ID and password will be
sent to you by mail. You can use this password
to log onto the mbrace area under "Owners
Online" at http://www.mbusa.com.
The system is available if:
Rit has been activated and is operational
Rthe corresponding mobile phone network is
available for transmitting data to the Cus-
tomer Center
Ra service subscription is available Determining the location of the vehicle on a map
is only possible if:
RGPS reception is available.
Rthe vehicle position can be forwarded to the
Customer Assistance Center
The mbrace system
To adjust the volume during a call, proceed as
follows:
XPress the
WorX button on the multi-
function steering wheel.
or
XUse the multimedia system's volume control.
The system offers various services, e.g.:
RAutomatic and manual emergency call
RRoadside Assistance call
RMB Info call
You can find information and a description of all
available features under "Owners Online" at
http://www.mbusa.com.
System self-test
After you have switched on the ignition, the sys-
tem carries out a self-diagnosis.
A malfunction in the system has been detected if one of the following occurs:
RThe indicator lamp in the SOS button does notcome on during the system self-test.
RThe indicator lamp in the FRoadside
Assistance button does not light up during
self-diagnosis of the system.
RThe indicator lamp in the ïMB Info call
button does not light up during self-diagnosis
of the system.
RThe indicator lamp in one or more of the fol-
lowing buttons continues to light up red after
the system self-diagnosis:
-SOS button
-F Roadside Assistance call button
-ïMB Info call button
RTheInoperativeor the Service NotActivatedmessage appears in the multi-
function display after the system self-diagno-
sis.
If a malfunction is indicated as outlined above,
the system may not operate as expected. In the event of an emergency, help will have to be
summoned by other means.
242Features
Stowage and features