reset MERCEDES-BENZ CLA-Class 2017 C117 User Guide

When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The memory function can be used at any time,
e.g. even when the SmartKey is not in the igni-
tion lock.
Storing settings
With the memory function, you can store up to
three different settings, e.g. for three different
people.
The following settings are stored as a single
memory preset:
Rseat and backrest position
Rdriver's side: position of the exterior mirrors
on the driver's and front-passenger sides
XAdjust the seat (Ypage 91).
XAdjust the exterior mirror on the driver's side
(Ypage 95).
XBriefly press the Mmemory button and then
press preset position button 1,2or 3within
three seconds.
The settings are stored in the selected preset
position. A tone sounds when the settings
have been completed.
Calling up a stored setting
XPress and hold the relevant preset position
button 1,2or 3until the seat and exterior
mirrors are in the stored position.
iThe setting procedure is interrupted as soon
as you release the storage position button.
98Memory function
Seats, steering wheel and mirrors

(200 km/h) range. If ATTENTION ASSIST
detects typical indicators of fatigue or increas-
ing lapses in concentration on the part of the
driver, it suggests taking a break.
Important safety notes
ATTENTION ASSIST is only an aid to the driver. It
might not always recognize fatigue or increasinginattentiveness in time or fail to recognize them
at all. The system is not a substitute for a well-
rested and attentive driver.
The functionality of ATTENTION ASSIST is
restricted and warnings may be delayed or not
occur at all:
Rif the length of the journey is less than approx-
imately 30 minutes
Rif the road condition is poor, e.g. if the surface
is uneven or if there are potholes
Rif there is a strong side wind
Rif you have adopted a sporty driving style with
high cornering speeds or high rates of accel-
eration
Rif you are predominantly driving slower than
37 mph (60 km/h) or faster than 125 mph
(200 km/ h)
Rif the time has been set incorrectly
Rin active driving situations, such as when you
change lanes or change your speed
ATTENTION ASSIST is reset when you continue
your journey and starts assessing your tiredness
again if:
Ryou switch off the engine
Ryou take off your seat belt and open the driv-
er's door, e.g. for a change of drivers or to
take a break
Displaying the attention level
You can have current status information dis-
played in the assistance menu (Ypage 182) of
the on-board computer.
XSelect the Assistance display for Attention
Assist using the on-board computer
(
Ypage 182).
The following information is displayed:
RLength of the journey since the last break.
RThe AttentionLeveldetermined by ATTEN-
TION ASSIST, displayed in a bar display in five
levels from high to low
RIf ATTENTION ASSIST is unable to calculate
the attention level and cannot output a warn-
ing, the System Passive
message appears.
The bar display then changes the display,
such as when you are driving at a speed below
37 mph (60 km/h) or above 124 mph
(200 km/h).
Activating ATTENTION ASSIST
XActivate ATTENTION ASSIST using the on-
board computer (Ypage 183).
The system determines the attention level of
the driver depending on the setting selected:
Standard
selected: the sensitivity with which
the system determines the attention level is set
to normal.
Sensitive
selected: the sensitivity is set
higher. The attention level detected by Attention
Assist is adapted accordingly and the driver is
warned earlier.
When ATTENTION ASSIST is deactivated, the
é symbol appears in the multifunction dis-
play in the assistance graphic display.
When ATTENTION ASSIST has been deactivated,
it is automatically reactivated after the engine
has been stopped. The sensitivity selected cor-
responds to the last selection activated (stand-
ard/sensitive).
Warning in the multifunction display
If fatigue or increasing lapses in concentration
are detected, a warning appears in the multi-
function display: ATTENTION ASSIST
Take aBreak!.
In addition to the message shown in the multi-
function display, you will then hear a warning
tone.
170Driving systems
Driving and parking

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

RCRUISECruise control (Ypage 148)
R_Adaptive Highbeam Assist
(Ypage 101)
Rè ECO start/stop function (Ypage 125)
RëHOLD function (Ypage 156)
Menus and submenus
Menu overview
Using the =or; button on the steering
wheel, open the menu bar.
Operating the on-board computer (
Ypage 175).
Depending on the equipment installed in the
vehicle, you can call up the following menus:
RTripmenu (Ypage 177)
RNavimenu (navigation instructions)
(Ypage 178)
RAudiomenu (Ypage 180)
RTelmenu (telephone) (Ypage 180)
RDriveAssistmenu (assistance)
(Ypage 182)
RServ.menu (Ypage 183)
RSett.menu (settings) (Ypage 183)
RAMGmenu (Mercedes-AMG vehicles)
(Ypage 185)
The displays for the Audio
,Naviand Telmenus
may differ slightly to those in your vehicle.
The examples given in this Operator's Manual
apply to vehicles equipped with COMAND.
Trip menu
Standard display
XPress and hold the %button on the steer-
ing wheel until the Tripmenu with trip odom-
eter :and odometer ;appears.
Trip computer "From Start" or "From
Reset"
:Distance
;Driving time
=Average speed
?Average fuel consumption
XPress the =or; button on the steering
wheel to select the Tripmenu.
XPress the9or: button to select
From Startor From Reset.
The values in the From
Startsubmenu are cal-
culated from the start of a journey whilst the
values in the From Reset
submenu are calcu-
lated from the last time the submenu was reset
(
Ypage 178).
In the following cases, the trip computer is auto-
matically reset From Start
:
Rthe ignition has been switched off for more
than four hours.
R999 hours have been exceeded.
R9,999 miles have been exceeded.
When 9,999 hours or 99,999 miles have been
exceeded, the trip computer is automatically
reset From Reset
.
ECO display
The ECO display is not available in Mercedes-
AMG vehicles.
XPress the =or; button on the steering
wheel to select the Tripmenu.
XPress the9or: button to select ECODISPLAY.
If the ignition remains switched off for longer
than four hours, the ECO display will be auto-
matically reset.
For more information on the ECO display, see
(
Ypage 144).
Menus and submenus177
On-board computer and displays
Z

Displaying therange an dcurrent fuel
consumption
Mercedes-AMG vehicles :th emen uonly shows
range :.
XPress th e= or; buttonon th esteerin g
whee lto selec tth eTri pmenu.
XPress 9or: to selec tth edisplay wit h
approximat erange :and curren tfue lcon-
sumption ;.
Approximat erange :that can be covered is
calculated accordin gto your curren tdrivin g
style and th eamount of fue lin th etank .If
there is only asmall amount of fue llef tin th e
fue ltank , avehicle bein grefuele dC
appears instead of approximat erange :.
Recuperation display =shows you if energ y
has bee nrecuperated from th ekineti cenerg y
in overrun mode and saved in th ebattery.
Recuperation display =depend son th e
engin einstalled and is therefore no tavailable
in all vehicles .
Digital speedometer
XPress the= or; buttonon th esteerin g
whee lto selec tth eTri pmenu.
XPress th e9 or: buttonto selec tth e
digita lspeedometer ;.
A gear shift recommendation :Zcan also
follow .
Observ eth einformation on gearshift recom -
mendation :when shiftin gmanually
(
Ypage 135).
Mercedes-AMG vehicles : agearshift recom -
mendation is shown in th estatus bar of th emultifunction display and no
tin th edigita l
speedometer display.
Resetting value s
XPress the= or; buttonon th esteerin g
whee lto selec tth eTri pmenu.
XPress th e9 or: buttonto selec tth e
function that you wish to reset .
XPressato confirm .
XPress:to selec tYesand press ato
confirm .
You can reset th evalues of th efollowin gfunc-
tions:
RTrip odometer
R"From Start "trip compute r
R"From Reset" trip compute r
RECOdisplay
If you reset th evalues in th eEC Odisplay, th e
values in th e"From Start "trip compute rare also
reset .If you reset th evalues in th e"From Start "
trip computer, th evalues in th eEC Odisplay are
also reset .
Navigation syste mmenu
Displaying navigation instructions
In th eNav imenu, th emultifunction display
shows navigation instructions.
You can fin dfurther information on navigation in
th eseparat emultimedia system operatin g
instructions.
XSwitc hon th emultimedia system (se esepa-
rat eoperatin ginstructions).
XPress th e= or; buttonon th esteerin g
whee lto selec tth eNav imenu.
Route guidance not active
:Direction of trave l
;Currentroad
178Menus and submenus
On-board computer and displays

Audio menu
Selecting a radio station
:Active station list
;Station frequency wit hmemory position
The multifunction display shows station ;with
station frequency or station name. The preset
position is only displayed alon gwit hstation ;if
this has been stored.
XSwitc hon th emultimedia system and select
Radio (see th eseparat eoperating instruc-
tions).
XPress th e= or; buttonon th esteering
whee lto select th eAudiomenu.
XTo select apreset list or station list :press
and briefl yhold th e9 or: buttonuntil
th epreset list or station list in th edesired
frequency range is shown.
XTo select astation: brieflypress 9
or :.
iSIRIUS XM satellit eradi ofunction slik e a
normal radio.
You can fin dfurther information on operation
in th e"Satellit eradio" section of th eseparat e
multimedia system operating instructions.
Operating an audio player oraudio
media
:Curren ttitl e Audio dat
afrom various audio device sor media
can be played ,depending on th eequipmen t
installed in th evehicle.
XSwitc hon th emultimedia system and then
audio CD or MP3 mod e(see th eseparat e
operating instructions).
XPress th e= or; buttonon th esteering
whee lto select th eAudiomenu.
XTo select th enext/previou strack :briefl y
press th e9 or: button.
XTo select atrack from th etrack list (rapid
scrolling): press and hold th e9 or:
butto nuntil desired track appears.
If you press and hold 9or:, therapi d
scrollin gspee dis increased. Not all audio
drives or dat acarriers support this function .
If track information is store don th eaudio device
or medium, th emultifunction display will sho w
th enumber and titl eof th etrack .
Video DVD operation
You can only operate DV Dvideos in th eAudiomen uin vehicles wit hCOMAND .
XSwitchon COMAND and select video DV D
(see th eseparat eoperating instructions).
XPress th e= or; buttonon th esteering
whee lto select th eAudiomenu.
XTo select th enext or previou sscene:
briefl ypress th e9 or: button.
XTo select ascene from th escene list
(rapid scrolling): press and hold the9
or : buttonuntil desired scen e:
appears.
Telephone menu
Introd uction
GWARNIN G
If you operate information systems and com-
munication equipmen tintegrate din th evehi-
180Menus and submenus
On-board computer and displays

For further information on the automatic locking
feature, see (Ypage 76).
Activating/deactivating the acoustic
locking verification signal
If you switch on theAcousticLockfunction, an
acoustic signal sounds when you lock the vehi-
cle.
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
Acoustic Lockfunction.
If the Acoustic Lockfunction is activated,
the multifunction display shows the &
symbol in orange.
XPress the abutton to save the setting.
Convenience
Switching the fold-in mirrors when lock-
ing feature on/off
This function is only available in Canada.
This function is only available when the vehicle is
equipped with the electrical fold-in function.
When you activate the Auto.
MirrorFoldingfunction, the exterior mirrors are folded in when
the vehicle is locked. If you unlock the vehicle
and then open the driver's or front-passenger
door, the exterior mirrors fold out again.
If you have switched on the Auto. Mirror
Foldingfunction and you fold in the exterior
mirrors using the button on the door
(
Ypage 96), they will not fold out automatically.
The exterior mirrors can then only be folded out
using the button on the door.
XPress the =or; button on the steering
wheel to select the Sett.menu.
XPress the:or9 button to select the
Conveniencesubmenu.
XPress ato confirm.
XPress the :or9 button to select the
Auto. Mirror Foldingfunction.
If the Auto. Mirror Foldingfunction is
switched on, the multifunction display shows
the exterior mirror in orange.
XPress the abutton to save the setting.
Restoring the factory settings
XPress the =or; button on the steering
wheel to select the Sett.menu.
XPress the:or9 button to select the
Factory Settingsubmenu.
XPress ato confirm.
The Reset All Settings?function
appears.
XPress the :or9 button to select Noor
Yes.
XPress the abutton to confirm the selec-
tion.
If you have selected Yes
, the multifunction
display shows a confirmation message.
For safety reasons, the Daytime Running
Lightsfunction in theLightsubmenu is only
reset if the vehicle is stationary.
AMG menu (Mercedes-AMG vehicles)
Warm-up
:Digital speedometer
;Gear indicator
=Upshift indicator
?Engine oil temperature
ACoolant temperature
BTransmission fluid temperature
XPress the =or; button on the steering
wheel to select the AMGmenu.
Upshift indicator: upshift indicatorUP=
indicates that the engine has reached the
overrevving range when in the manual drive
program.
Engine and transmission oil temperature:
when the engine and transmission are at nor- mal operating temperature, oil tempera-
ture ?and Bare displayed in white in the
multifunction display.
If the multifunction display shows oil temper-
ature ?orB in blue, the engine or the
transmission are not yet at normal operating
Menus and submenus185
On-board computer and displays
Z

XPress the%button on the steering wheel.
XConfirm Yeswitha.
The RACETIMER interrupts timing if you stop the
vehicle and turn the SmartKey to position 1in
the ignition lock. If you turn the key to position 3
and then press ato confirm Start
, timing is
continued.
Resetting the current lap
XStop the RACETIMER.
XPress the =or; button to select
Reset Lap.
XPress ato reset the lap time to "0".
Deleting all laps
If you switch off the engine, the RACETIMER is
reset to "0" after 30 seconds. All laps are
deleted.
You cannot delete individual stored laps. If you
have stopped 16 laps, the current lap does not
have to be reset.
XReset the current lap.
XPress ato confirm Reset.
Reset Race-Timer?appears in the multi-
function display.
XPress the :button to select Yesand press
the a button to confirm.
All laps are deleted.
Overall statistics
:RACETIMER overall evaluation
;Total time driven
=Average speed
?Distance covered
AMaximum speed
This function is shown if you have stored at least
one lap and stopped the RACETIMER.
XPress the =or; button on the steering
wheel to select the AMGmenu.
XPress the9button repeatedly until the
overall evaluation appears.
Lap statistics
:Lap
;Lap time
=Average lap speed
?Lap length
ATop speed during lap
This function is only available if you have stored
at least two laps and have stopped the RACE-
TIMER.
XPress the =or; button on the steering
wheel to select the AMGmenu.
XPress9repeatedly until a lap evaluation
appears.
Each lap appears in a separate submenu. The
fastest lap is indicated by flashing symbol :.
XPress the9or: button to select a dif-
ferent lap evaluation.
Menus and submenus187
On-board computer and displays
Z

ASSYST PLUS
Service message
The ASSYSTPLU Sservic einterval display
inform syou of th enext servic edue date.
You can fin dinformation on th etyp eof servic e
and servic eintervals in th eMaintenance Book -
let .
You can obtain further information from an
authorize dMercedes-Benz Cente ror at
http://www.mbusa.co m(US Aonly).
iThe ASSYS TPLU Sservic einterval display
does no tsho wany information on th eengin e
oil level. Observ eth enote son th eengin eoil
level (
Ypage 255).
The multifunction display shows aservic emes -
sage for several seconds, e.g. :
RService Ain .. day s
RService Adue
RServic e Aoverdu eby .. day s
Dependingon th eoperating condition sof th e
vehicle, th eremaining time or distanc euntil th e
next servic edue dat eis displayed.
The lette rA
or B,possibl yin connection wit h a
number or another letter, indicates th etyp eof
service. A
standsfor aminor servic eand Bfora
major service.
You can obtain further information from an
authorize dMercedes-Benz Center.
The ASSYS TPLU Sservic einterval display does
no ttak eint oaccoun tany periods of time during
whic hth ebattery is disconnected.
Maintainin gth etime-dependen tservic esched-
ule:
XNot edown th eservic edue dat edisplayed in
th emultifunction display before disconnect -
ing th ebattery.
or
XAfte rreconnecting th ebattery, subtrac tth e
battery disconnection periods from th eser -
vic edat eshown on th edisplay.
Hiding a service message
XPress th ea or% buttonon th esteering
wheel.
Displaying service messages
XSwitc hon th eignition .
XPress th e= or; buttonto select th e
Serv.menu.
XPress th e9 or: buttonto select th e
ASSYSTPLU Ssubmen uand confirm by press-
ing th ea button.
The servic edue dat eappear sin th emulti-
function display.
Infor mation about Service
Resetting the ASSYST PLUS service
interval display
!If th eASSYS TPLU Sservic einterval display
has been inadvertentl yreset ,this setting can
be correcte dat aqualified specialist work-
shop.
Hav eservic ewor kcarrie dout as described in
th eMaintenance Booklet .This may otherwise
lead to increased wear and damag eto th e
major assemblies or th evehicle.
A qualified specialist workshop ,e.g. an author-
ized Mercedes-Benz Center, will reset th e
ASSYS TPLU Sservic einterval display after th e
servic ewor khas been carrie dout .You can also
obtain further information on maintenance
work, for example.
Special service requirements
The specifie dmaintenance interval takes only
th enormal operation of th evehicl eint o
account. Under arduous operating condition sor
increased load on th evehicle, maintenance
wor kmus tbe carrie dout mor efrequently, for
example:
Rregular cit ydrivin gwit hfrequen tintermediat e
stops
Rif th evehicl eis primarily used to travel short
distances
Ruse in mountainous terrain or on poor road
surfaces
Rif th eengin eis often lef tidlin gfor lon gperiods
Rin particularly dust yconditions, or if air-recir-
culation mod eis frequentl yused
In these or similar operating conditions, hav e
th einterior filter, engin eair cleaner, engin eoil
and oil filter, for example, changed mor efre-
258ASSYST PLUS
Maintenance and care

Remove theSmartKey if you park th evehicl e
and do no trequire any electrical consumers.
The vehicl ewill then use ver ylittl eenergy, thus
conserving battery power .
If th epower suppl yhas been interrupted, e.g. if
you reconnect th ebattery, you will hav eto :
Rset th eclock usin gth emultimedia system;
see th eseparat eoperating instructions.
Rreset th efunction for foldin gth eexterio rmir -
ror sin/out automatically, by foldin gth emir -
ror sout once (
Ypage 96)
Charging the battery
GWARNIN G
During charging and jump-starting ,explosive
gase scan escape from th ebattery. There is a
ris kof an explosion .
Particularly avoi dfire, open flames, creating
sparks and smoking. Ensur ethere is sufficien t
ventilation while charging and jump-starting .
Do no tlean ove r abattery.
GWARNIN G
Battery acid is caustic. There is aris kof injury.
Avoid contact wit hskin, eyes or clothing .Do
no tinhale any battery gases. Do no tlean ove r
th ebattery. Kee pchildren away from batter-
ies. Wash away battery acid immediately wit h
plenty of clean water and seek medical atten -
tion .
GWARNIN G
A discharged battery can freez eat tempera-
tures belo wfreezing point. When jump-start -
ing thevehicl eor charging th ebattery, gase s
can escape from th ebattery. There is aris kof
an explosion .
Allow th efrozen battery to thaw out before
charging it or jump-starting .
!Only use battery chargers wit h amaximum
charging voltag eof 14.8 V.
!Only charge th ebattery usin gth ejump-
starting connection point.
The jump-starting connection poin tis in th e
engin ecompartmen t (
Ypage 273).
XOpen thehood.
XConnect th ebattery charge rto th epositive
termina land ground poin tin th esam eorder
as when connecting th edonor battery in th e
jump-starting procedure (
Ypage 273).
If th eindicator/warning lamp sdo no tligh tup in
th einstrumen tcluste rat low temperatures ,it is
ver ylikely that th edischarged battery has fro-
zen. In this cas eyou may neither jump-start th e
vehicl eno rcharge th ebattery. The servic elife of
a thawed-out battery may be shorter. The start -
ing characteristics can be impaired, particularly
at low temperatures .Hav eth ethawed-out bat -
tery checke dat aqualified specialist workshop.
Only charge th einstalled battery wit h abattery
charge rwhic hhas been tested and approve dby
Merced
es-Benz . Abattery charge runi tspecially
adapted for Mercedes-Benz vehicles and tested
and approve dby Mercedes-Benz is available as
an accessory. It permit sth echarging of th ebat -
tery in it sinstalled position .Contac tan author-
ized Mercedes-Benz Cente rfor further informa-
tion and availability. Read th ebattery charger's
operating instruction sbefore charging th ebat -
tery.
Jump-starting
Fo rth ejump-starting procedure ,use only th ejump-starting connection point, consisting of apos -
itive termina land aground point, in th eengin ecompartment.
GWARNIN G
Battery acid is caustic. There is aris kof injury.
Avoid contact wit hskin, eyes or clothing .Do no tinhale any battery gases. Do no tlean ove rth e
battery. Kee pchildren away from batteries. Wash away battery acid immediately wit hplenty of
clean water and seek medical attention .
Jump-starting273
Breakdown assistance
Z