2017 MERCEDES-BENZ CLA reset

Folding the exterior mirrors in or out
electrically X
Turn th e SmartKey to position 1 or 2 in th e
ignition loc k ( Y
page 121).X
Briefly press C .
Both exterio r mirror s fol d in or out .
i Mak e sure that th e exterio r mirror s are
always folded out fully while driving . They
could otherwise vibrate .
i If you are driving faste r than 30 mph
(47 km/h), you can no longer fol d in th e exte -
rio r mirrors.
Resetting the exterior mirrors If th e battery has been disconnected or com-
pletely discharged, th e exterio r mirror s must be
reset . The exterio r mirror s will otherwise no t
fol d in when you select th e "Fold in mirror s when
locking" function in th e on-board computer
( Y
page 185). X
Turn th e SmartKey to position 1 in th e ignition
loc k ( Y
page 121).X
Briefly press C .
Folding the exterior mirrors in or out
automatically If th e "Fold in mirror s when locking" function is
activated in th e on-board computer
( Y
page 185): R
th e exterio r mirror s fol d in automatically as
soo n as you loc k th e vehicl e from th e outside .R
th e exterio r mirror s fol d out again automati-
call y as soo n as you unlock th e vehicl e and
then open th e driver' s or front-passenger
door . i If th e exterio r mirror s have been folded in
manually, they do no t fol d out .
Exterior mirror pushed out of position If an exterio r mirror has been pushed out of
position , procee d as follows :X
Vehicles without electricall y folding exte-
rior mirrors : mov e th e exterio r mirror int o
th e correct position manually. X
Vehicles with electricall y folding exterior
mirrors : press and hold mirror-foldin g butto n
( Y
page 96 )u ntil you hear the mirror click into
place.
The mirror housing is engaged again and you
can adjust the exterior mirrors as usual
( Y
page 95).
Automatic anti-glare mirrors
G WARNING
Electrolyte may escape if the glass in an auto-
matic anti-glare mirror breaks. The electrolyte
is harmful and causes irritation. It must not
come into contact with your skin, eyes, res-
piratory organs or clothing or be swallowed.
There is a risk of injury.
If you come into contact with the electrolyte,
observe the following: R
Rinse off the electrolyte from your skin
immediately with water. R
Immediately rinse the electrolyte out of
your eyes thoroughly with clean water. R
If the electrolyte is swallowed, immediately
rinse your mouth out thoroughly. Do not
induce vomiting. R
If electrolyte comes into contact with your
skin or hair or is swallowed, seek medical
attention immediately. R
Immediately change out of clothing which
has come into contact with electrolyte. R
If an allergic reaction occurs, seek medical
attention immediately.
The "Automatic anti-glare mirrors" function is
only available if the vehicle is equipped with the
"Mirrors package".96
Mirrors
Seats, steering wheel an d mirrors

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: R
seat and backrest position R
driver's side: position of the exterior mirrors
on the driver's and front-passenger sides
X
Adjust the seat ( Y
page 91).X
Adjust the exterior mirror on the driver's side
( Y
page 95).X
Briefly press the M memory button and then
press preset position button 1 , 2 or 3 within
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 X
Press and hold the relevant preset position
button 1 , 2 or 3 until the seat and exterior
mirrors are in the stored position.
i The setting procedure is interrupted as soon
as you release the storage position button.98
Memory 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 increasing
inattentiveness 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: R
if the length of the journey is less than approx-
imately 30 minutes R
if the road condition is poor, e.g. if the surface
is uneven or if there are potholes R
if there is a strong side wind R
if you have adopted a sporty driving style with
high cornering speeds or high rates of accel-
eration R
if you are predominantly driving slower than
37 mph (60 km/h) or faster than 125 mph
(200 km/ h)R
if the time has been set incorrectly R
in 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: R
you switch off the engine R
you 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 ( Y
page 182) of
the on-board computer. X
Select the Assistance display for Attention
Assist using the on-board computer
( Y
page 182).
The following information is displayed: R
Length of the journey since the last break. R
The Attention Level determined by ATTEN-
TION ASSIST, displayed in a bar display in five
levels from high to low R
If 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 X
Activate ATTENTION ASSIST using the on-
board computer ( Y
page 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

Audio menu
Selecting a ra dio station
C
Active station listD
Station frequency wit h memory position
The multifunction display shows station D wit h
station frequency or station name. The preset
position is only displayed alon g wit h station D if
this has been stored. X
Switc h on th e multimedia system and select
Radio (see th e separat e operating instruc-
tions). X
Press th e Y or e butto n on th e steering
whee l to select th e Audio menu.X
To select a preset list or station list : press
and briefl y hold th e c or d butto n until
th e preset list or station list in th e desired
frequency range is shown. X
To select a station: briefl y press c
or d .
i SIRIUS XM satellit e radi o function s lik e a
normal radio.
You can fin d further information on operation
in th e "Satellit e radio" section of th e separat e
multimedia system operating instructions.
Operating an audio player or audio
media
C
Curren t titl e Audio dat a from various audio device s or media
can be played , depending on th e equipmen t
installed in th e vehicle. X
Switc h on th e multimedia system and then
audio CD or MP3 mod e (see th e separat e
operating instructions). X
Press th e Y or e butto n on th e steering
whee l to select th e Audio menu.X
To select th e next/previou s track : briefl y
press th e c or d button.X
To select a track from th e track list (rapid
scrolling): press and hold th e c or d
butto n until desired track appears.
If you press and hold c or d , th e rapi d
scrollin g spee d is increased. Not all audio
drives or dat a carriers support this function .
If track information is store d on th e audio device
or medium, th e multifunction display will sho w
th e number and titl e of th e track .
Video DVD operation
You can only operate DV D videos in th e Audio
men u in vehicles wit h COMAND .X
Switc h on COMAND and select video DV D
(see th e separat e operating instructions).X
Press th e Y or e butto n on th e steering
whee l to select th e Audio menu.X
To select th e next or previou s scene:
briefl y press th e c or d button.X
To select a scene from th e scene list
(rapid scrolling): press and hold th e c
or d butto n until desired scen e C
appears.
Telephone menu
Int rod uction
G WARNIN G
If you operate information systems and com-
munication equipmen t integrate d in th e vehi-180
Menus and submenus
On-board computer and displays

For further information on the automatic locking
feature, see ( Y
page 76).
Activating/deactivating the acoustic
locking verification signal If you switch on the Acoustic Lock function, an
acoustic signal sounds when you lock the vehi-
cle. X
Press the Y or e button on the steering
wheel to select the Sett. menu.X
Press the d or c button to select the
Vehicle submenu.X
Press v to confirm.X
Press the d or c button to select the
Acoustic Lock function.
If the Acoustic Lock function is activated,
the multifunction display shows the 7
symbol in orange. X
Press the v button 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. Mirror Folding
function, 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
Folding function and you fold in the exterior
mirrors using the button on the door
( Y
page 96), they will not fold out automatically.
The exterior mirrors can then only be folded out
using the button on the door. X
Press the Y or e button on the steering
wheel to select the Sett. menu.X
Press the d or c button to select the
Convenience submenu.X
Press v to confirm.X
Press the d or c button to select the
Auto. Mirror Folding function.
If the Auto. Mirror Folding function is
switched on, the multifunction display shows
the exterior mirror in orange. X
Press the v button to save the setting. Restoring the factory settings X
Press the Y or e button on the steering
wheel to select the Sett. menu.X
Press the d or c button to select the
Factory Setting submenu.X
Press v to confirm.
The Reset All Settings? function
appears. X
Press the d or c button to select No or
Yes . X
Press the v button to confirm the selec-
tion.
If you have selected Yes
, the multifunction
display shows a confirmation message.
For safety reasons, the Daytime Running
Lights function in the Light submenu is only
reset if the vehicle is stationary.
AMG menu (Mercedes-AMG vehicles)
Warm-up
C
Digital speedometer D
Gear indicator

X
Press the 8 button on the steering wheel.X
Confirm Yes with v .
The RACETIMER interrupts timing if you stop the
vehicle and turn the SmartKey to position 1 in
the ignition lock. If you turn the key to position 3
and then press v to confirm Start , timing is
continued.
Resetting the current lap X
Stop the RACETIMER. X
Press the Y or e button to select
Reset Lap .X
Press v to 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. X
Reset the current lap. X
Press v to confirm Reset .
Reset Race-Timer? appears in the multi-
function display. X
Press the d button to select Yes and press
the v button to confirm.
All laps are deleted.
Overall statistics
C
RACETIMER overall evaluation
D
Total time driven

ASSYST PLUS
Service message The ASSYS T PLU S servic e interval display
inform s you of th e next servic e due date.
You can fin d information on th e typ e of servic e
and servic e intervals in th e Maintenance Book -
let .
You can obtain further information from an
authorize d Mercedes-Benz Cente r or at
http://www.mbusa.co m (US A only).
i The ASSYS T PLU S servic e interval display
does no t sho w any information on th e engin e
oil level. Observ e th e note s on th e engin e oil
level ( Y
page 255).
The multifunction display shows a servic e mes -
sage for several seconds, e.g. :R
Servic e A in .. day sR
Servic e A dueR
Servic e A overdu e by .. day s
Dependin g on th e operating condition s of th e
vehicle, th e remaining time or distanc e until th e
next servic e due dat e is displayed.
The lette r A or B , possibl y in connection wit h a
number or another letter, indicates th e typ e of
service. A stand s for a minor servic e and B for a
major service.
You can obtain further information from an
authorize d Mercedes-Benz Center.
The ASSYS T PLU S servic e interval display does
no t tak e int o accoun t any periods of time during
whic h th e battery is disconnected.
Maintainin g th e time-dependen t servic e sched-
ule: X
Not e down th e servic e due dat e displayed in
th e multifunction display before disconnect -
ing th e battery.
or X
Afte r reconnecting th e battery, subtrac t th e
battery disconnection periods from th e ser -
vic e dat e shown on th e display.
Hiding a service message X
Press th e v or 8 butto n on th e steering
wheel. Displaying service messages X
Switc h on th e ignition .X
Press th e Y or e butto n to select th e
Serv. menu. X
Press th e c or d butto n to select th e
ASSYST PLU S submen u and confirm by press-
ing th e v button.
The servic e due dat e appear s in th e multi-
function display.
Infor ma ti on about Service
Resetting the ASSYST PLUS service
interval display
! If th e ASSYS T PLU S servic e interval display
has been inadvertentl y reset , this setting can
be correcte d at a qualified specialist work-
shop.
Hav e servic e wor k carrie d out as described in
th e Maintenance Booklet . This may otherwise
lead to increased wear and damag e to th e
major assemblies or th e vehicle.
A qualified specialist workshop , e.g. an author-
ized Mercedes-Benz Center, will reset th e
ASSYS T PLU S servic e interval display after th e
servic e wor k has been carrie d out . You can also
obtain further information on maintenance
work, for example.
Special service requirements The specifie d maintenance interval takes only
th e normal operation of th e vehicl e int o
account. Under arduous operating condition s or
increased load on th e vehicle, maintenance
wor k mus t be carrie d out mor e frequently, for
example: R
regular cit y drivin g wit h frequen t intermediat e
stops R
if th e vehicl e is primarily used to travel short
distances R
use in mountainous terrain or on poor road
surfaces R
if th e engin e is often lef t idlin g for lon g periodsR
in particularly dust y conditions, or if air-recir-
culation mod e is frequentl y used
In these or similar operating conditions, hav e
th e interior filter, engin e air cleaner, engin e oil
and oil filter, for example, changed mor e fre-258
ASSYST PLUS
Maintenance and care

Remove th e SmartKey if you park th e vehicl e
and do no t require any electrical consumers.
The vehicl e will then use ver y littl e energy, thus
conserving battery power .
If th e power suppl y has been interrupted, e.g. if
you reconnect th e battery, you will hav e to :R
set th e clock usin g th e multimedia system;
see th e separat e operating instructions.R
reset th e function for foldin g th e exterio r mir -
ror s in/out automatically, by foldin g th e mir -
ror s out once ( Y
page 96 )
Charging the battery
G WARNIN G
During charging and jump-starting , explosive
gase s can escape from th e battery. There is a
ris k of an explosion .
Particularly avoi d fire, open flames, creating
sparks and smoking. Ensur e there is sufficien t
ventilation while charging and jump-starting .
Do no t lean ove r a battery.
G WARNIN G
Battery acid is caustic. There is a ris k of injury.
Avoid contact wit h skin, eyes or clothing . Do
no t inhale any battery gases. Do no t lean ove r
th e battery. Kee p children away from batter-
ies. Wash away battery acid immediately wit h
plenty of clean water and seek medical atten -
tion .
G WARNIN G
A discharged battery can freez e at tempera-
tures belo w freezing point. When jump-start - ing th e vehicl e or charging th e battery, gase s
can escape from th e battery. There is a ris k of
an explosion .
Allow th e frozen battery to thaw out before
charging it or jump-starting .
! Only use battery chargers wit h a maximum
charging voltag e of 14.8 V.
! Only charge th e battery usin g th e jump-
starting connection point.
The jump-starting connection poin t is in th e
engin e compartmen t ( Y
page 273).X
Open th e hood. X
Connect th e battery charge r to th e positive
termina l and ground poin t in th e sam e order
as when connecting th e donor battery in th e
jump-starting procedure ( Y
page 273).
If th e indicator/warning lamp s do no t ligh t up in
th e instrumen t cluste r at low temperatures , it is
ver y likely that th e discharged battery has fro-
zen. In this cas e you may neither jump-start th e
vehicl e no r charge th e battery. The servic e life of
a thawed-out battery may be shorter. The start -
ing characteristics can be impaired, particularly
at low temperatures . Hav e th e thawed-out bat -
tery checke d at a qualified specialist workshop.
Only charge th e installed battery wit h a battery
charge r whic h has been tested and approve d by
Merced es-Benz .
A battery charge r uni t specially
adapted for Mercedes-Benz vehicles and tested
and approve d by Mercedes-Benz is available as
an accessory. It permit s th e charging of th e bat -
tery in it s installed position . Contac t an author-
ized Mercedes-Benz Cente r for further informa-
tion and availability. Read th e battery charger's
operating instruction s before charging th e bat -
tery.
Jump-starting
Fo r th e jump-starting procedure , use only th e jump-starting connection point, consisting of a pos -
itive termina l and a ground point, in th e engin e compartment.
G WARNIN G
Battery acid is caustic. There is a ris k of injury.
Avoid contact wit h skin, eyes or clothing . Do no t inhale any battery gases. Do no t lean ove r th e
battery. Kee p children away from batteries. Wash away battery acid immediately wit h plenty of
clean water and seek medical attention . Jump-starting 273
Breakdown assistance Z