2017 MERCEDES-BENZ SLC warning light

importan tift he vehicle is laden. By doing so, you
will make use of the braking effect of the engine.
This relieves the load on the brak es ystem and
prevent st he brakes fro mo verheatin ga nd wear-
ing too quickly.
If Distanc eP ilot DISTRONIC detect st hat there is
ar isk of ac ollision, you will be warne dv isually
and acoustically. Without your intervention, Dis-
tance Pilot DISTRONIC cannot prevent ac olli-
sion .Ani ntermitten tw arnin gt on ew ill then
sound and the distanc ew arnin gl amp will light
up in the instrumen tc luster. Brak ei mmediately
in order to increase the distanc ef ro mt he vehi-
cle in front ,ort ak ee vasiv ea ction, provided it is
safe to do so.
For Distanc eP ilot DISTRONIC to assist you
when driving, the radar sensor system must be
operational.
Distanc eP ilot DISTRONIC operates in the range
betwee n0m ph (0 km/h) and 120 mph
(200 km/h).
Do not use Distanc eP ilot DISTRONIC on roads
with steep gradients.
As Distanc eP ilot DISTRONIC transmits radar
waves, it can resemble the radar detectors of
the responsible authorities .Y ou can refe rtot he
relevant chapter in the Operator's Manual if
questions are asked about this.
i USA only: This devic eh as been approved by
the FCC as a" Vehicular Radar System". The
radar sensor is intended for use in an auto-
motive radar system only. Removal, tamper-
ing, or altering of the devic ew ill void any war-
ranties, and is not permitted by the FCC. Do
not tamper with, alter ,oru se in any non-
approved way.
An yu nauthorized modification to this device
could void the user's authority to operat et he
equipment.
i Canada only: This devic ec omplies with
RS S-210 of Industr yC anada. Operation is
subject to the followin gt wo conditions:
1. This devic em ay not cause harmful inter-
ference, and
2. This devic em ust accept any interference
received, including interference that may
cause undesired operation of the device.
Removal, tampering, or altering of the device
will void any warranties ,a nd is not permitted.
Do not tamper with, alter ,oru se in any non-
approved way. An yu nauthorized modification to this device
could void the user's authority to operat et he
equipment.
Important safety notes
G WARNING
Distanc eP ilot DISTRONIC does not react to: R
people or animals R
stationar yo bject sont he road, e.g. stopped
or parked vehicles R
oncomin gv ehicles and crossin gt ra ffic
As ar esult ,D istanc eP ilot DISTRONIC may
neither give warnings nor intervene in such
situations .T here is ar isk of an accident.
Always pay careful attention to the traffic sit-
uation and be ready to brake.
G WARNING
Distanc eP ilot DISTRONIC cannot always
clearly identify other road users and complex
traffic situations.
In such cases ,D istanc eP ilot DISTRONIC may:R
give an unnecessary warnin ga nd then
brak et he vehicle R
neither give aw arnin gn or interveneR
accelerat eorb rak eu nexpectedly
There is ar isk of an accident.
Continue to drive carefully and be ready to
brake, especially if Distanc eP ilot DISTRONIC
warns you.
G WARNING
Distanc eP ilot DISTRONIC brakes your vehicle
with up to 50% of the maximum possible
deceleration. If this deceleratio nisn ot suffi-
cient, Distanc eP ilot DISTRONIC alert sy ou
with av isual and acoustic warning. There is a
risk of an accident.
Apply the brakes yourself in these situations
and tr yt ot ak ee vasiv ea ction.
! When Distanc eP ilot DISTRONIC or the
HOL Df unction is activated, the vehicle
brakes automatically in certain situations.Driving systems 141
Driving and parking Z

! When parking, pay particular attention to
objects above or below the sensors, such as
flower pots or trailer drawbars. PARKTRONIC
does not detect such objects when they are in
the immediate vicinity of the vehicle. You
could damage the vehicle or the objects.
The sensors may not detect snow and other
objects that absorb ultrasonic waves.
Ultrasonic sources such as an automatic car
wash, the compressed-air brakes on at ruck
or ap neumatic drill could cause PARKTRONIC
to malfunction.
PARKTRONIC may not function correctly on
uneven terrain.
PARKTRONIC is activated automaticall yw hen
you: R
switch on the ignition R
shift the transmission to position D , R or NR
release the electric parking brake
PARKTRONIC is deactivated at speeds above
11 mph (18 km/h). It is reactivated at lower
speeds.
Range of the sensors
General notes PARKTRONIC does not take objects into con-
sideration that are: R
below the detection range, e.g. people, ani-
mals or objects. R
above the detection range, e.g. overhanging
loads, truck overhangs or loading ramps.
C
Sensors in the front bumper, left-hand side
(example)
The sensors must be free from dirt, ice or slush.
They can otherwise not function correctly. Clean
the sensors regularly, taking care not to scratch
or damage them ( Y
page 240). Range
Front sensors
Center Approx. 40 in (approx.
100 cm)
Corners Approx. 24 in (approx.
60 cm)
Rear sensors
Center Approx. 48 in (approx.
120 cm)
Corners Approx. 32 in (approx.
80 cm)
Minimum distance
Center Approx. 8i n( approx. 20 cm)
Corners Approx. 6i n( approx. 15 cm)
If there is an obstacle within this range, the rel-
evant warning displays light up and aw arning
tone sounds. If the distance falls below the min-
imum, the distance may no longer be shown.150
Driving systems
Driving and parking

Problems with PARKTRONIC Problem
Possible causes/consequences and P Solutions
Only the red segments in
the PARKTRONIC warn-
ing display sa re lit. You
also hear aw arning tone
for approximately two
seconds.
PARKTRONIC is deacti-
vated after approx-
imately 20 seconds, and
the indicator lamp in the
PARKTRONIC button
lights up. PARKTRONIC has malfunctioned and has switched off. X
If problems persist, have PARKTRONIC checked at aq ualified spe-
cialist workshop.
Only the red segments in
the PARKTRONIC warn-
ing display sa re lit.
PARKTRONIC is deacti-
vated after approx-
imately five seconds. The PARKTRONIC sensors are dirty or there is interference. X
Clean the PARKTRONIC sensors ( Y
page 240).X
Switch the ignition back on.
The problem may be caused by an external source of radio or ultra-
sound waves. X
See if PARKTRONIC functions in ad ifferent location.
Parking Guidance
Important safety notes Parking Guidance is an electronic parking aid
with ultrasound. Ultrasound is used to measure
the road on both sides of the vehicle. As uitable
parking space is indicated by the parking sym-
bol. You receive steering instructions when
parking. You may also use PARKTRONIC
( Y
page 149).
Parking Guidance is only an aid. It is not a
replacement for your attention to your immedi-
ate surroundings. You are always responsible
for safe maneuvering, parking and exiting a
parking space. When maneuvering, parking or
pulling out of ap arking space, make sure that
there are no persons, animals or object sint he
area in which you are maneuvering.
G WARNING
If object sa re located above the detection
range, Parking Guidance may provide steering
instructions too soon. You may cause ac olli-
sion as ar esult. There is ar isk of an accident.
If object sa re located above the detection
range, stop and switch off Parking Assist. ! If unavoidable, you should drive over obsta-
cles such as curbs slowly and not at as harp
angle. Otherwise, you may damage the
wheels or tires.
When PARKTRONIC is deactivated, Parking
Guidance is also unavailable.
Parking Guidance may also display spaces not
suitable for parking, e.g.: R
where parking or stopping is prohibited R
in front of driveways or entrances and exits R
on unsuitable surfaces
Use Parking Guidance for parking spaces: R
that are paralle ltot he direction of travelR
that are on straight roads, not bends R
that are on the same level as the road, i.e. not
on the pavement, for example. Parking Guid-
ance may not detect flat curbs
Parking tips: R
On narrow roads, drive as close to the parking
space as possible. R
Parking spaces that are littered or overgrown
might be identified or measured incorrectly. R
Parking spaces that are partially occupied by
trailer drawbars might not be identified as
such or be measured incorrectly.152
Driving systems
Driving and parking

Blind Spot Assist monitors the are aupto10f t
(3.0 m) behind your vehicle and directly nex tt o
your vehicle, as shown in the diagram. For this
purpose, Blind Spot Assist uses radar sensor si n
the rear bumper.
If the lanes are narrow, vehicles driving in the
lane beyond the lane nex ttoy our vehicle may be
indicated, especially if the vehicles are not driv-
ing in the middle of their lane. This may be the
case if ther ea re vehicles driving at the inner
edge of their lanes.
Due to the natur eoft he system:R
warning sm ay be issued in error when driving
close to crash barriers or similar solid lane
borders. R
the warning is canceled when driving for an
extended period nex ttol ong vehicles, such as
trucks.
Indicator and warning display
C
Yellow indicator lamp/red warning lamp
Blind Spot Assist is not activ eats peeds below
approximately 20 mph (30 km/h). Vehicles in
the monitoring range are then not indicated.
When Blind Spot Assist is activated, indicator
lamp C in the exterior mirror sl ights up yellow
at speeds of up to 20 mph (3 0k m/ h) .Ats peeds
above 20 mph (30 km/h), the indicator lamp
goe so ut and Blind Spot Assist is operational.
If av ehicl eisd etected within the blind spot
monitoring rang eats peeds above 20 mph
(30 km/h), warning lamp C on the correspond-
ing sid el ig hts up red .T hi sw ar ning is always
emitted when av ehicl ee nter st he blind spot
monitoring rang ef rom behind or from the side.
Whe ny ou overtake av ehicle, the warning only
occurs if the difference in speed is less than
7m ph (12 km/h).
The yellow indicator lamp goe so ut if reverse
gea rise ngaged .Int his event, Blind Spot Assist
is no longer active. The brightness of the indicator/warning lamps
is adjuste da ut omaticall ya ccording to the ambi-
ent light.
Collisio nw arningIf av ehicl eisd etected in the monitoring rang eo f
Blind Spot Assist and yo us witch on the corre-
sponding turn signal ,ad oubl ew ar ning tone
sounds. Re dw ar ning lamp C flashes. If the turn
signal remains on, vehicles detected are indica-
ted by the flashing of red warning lamp C .
There are no further warning tones.
Switchin gonB lind Spo tA ssis tX
Make sure that Blind Spot Assist
( Y
page 171 )i sa ctivate dint he on-board
computer. X
Turn the SmartKey to position 2 in the ignition
lock.
Warning lamps C in the exterio rm irrors light
up red for approximately 1.5 seconds and
then turn yellow.
Lan eK ee ping Assist
General notes
Lane Keeping Assist monitors the are ainf ront of
your vehicl ew it hc amera C ,w hi ch is mounted
at the top of the windshield .L ane Keeping Assist
detects lane markings on the roa da nd warns
yo ub efore yo ul ea ve your lane unintentionally.
If yo us elect km on the on-board compute rint he
Display Unit Speed-/Odometer function
( Y
page 172), Lane Keeping Assist is active
starting at as peed of 60 km/h .Ift he miles
display uni ti ss elected ,t he assistance range
begins at 40 mph.
Aw ar ning may be given if af ront wheel passes
ove ral an em arking. It will warn yo ubym eans of
intermittent vibration in the steering wheel for
up to 1.5 seconds.160
Driving systems
Driving and parking

Important safety notes
G WARNIN G
If you operate information systems and com-
munication equipmen ti ntegrate dint he vehi-
cle while driving ,y ou will be distracte df ro m
traffic conditions. You could also lose control
of th ev ehicle. Ther eisar is kofana ccident.
Only operate th ee quipmen tw hen th et ra ffic
situation permits. If you are no ts ur et ha tt hi s
is possible ,p ark th ev ehicl ep ayin ga ttention
to traffic condition sa nd operate th ee quip-
men tw hen th ev ehicl eiss ta tionary.
You must observ et he legal requirements for th e
country in whic hy ou are currentl yd riving when
operating th eo n-bo ard computer.
G WARNIN G
If th ei nstrumen tc luste rh as faile dorm al-
functioned, you may no tr ecognize function
restriction sins ystems relevan ttos afety. The
operating safet yofy our vehicl em ay be
impaired .T her eisar is kofana ccident.
Drive on carefully. Hav et he vehicl ec hecked
at aq ualified specialist workshop immedi-
ately.
The on-board computer only shows message so r
warning sf ro mc ertai ns ystems in th em ultifunc-
tion display. You should therefor em ak es ur e
your vehicl eiso perating safely at all times .
If th eo perating safet yofy our vehicl ei s
impaired ,p ull ove rass oo nasitiss af etodos o.
Contac taq ualified specialist workshop.
Fo rano verview, see th ei nstrumen tp anel illus-
tration ( Y
page 31).
Display sa nd operation
Instrumen tc luster lighting
The lighting in th ei nstrumen tc luster, in th ed is-
plays and th ec ontrols in th ev ehicl ei nterior can
be adjusted usin gt he brightness control knob.
The brightness control knob is locate dont he
botto ml ef toft he instrumen tc luste r
( Y
page 31). X
Turn th eb rightness control knob clockwise or
counter-clockwise.
If you tur nt he ligh ts witch ( Y
page 93 )t ot he
X , ` or X position ,t he brightness
will depend upon th eb rightness of th ea mbi -
en tl ight.
The ligh ts ensor in th ei nstrumen tc luste r
automatically control st he brightness of th e
multifunction display. In daylight, th ed isplays
in th ei nstrumen tc luste ra re no ti lluminated.
Speedometer with segments The segments in th es peedometer indicat e
whic hs pee dr ange is available. R
Cruis ec ontro la ctivated ( Y
page 138):
The segments ligh tupf ro mt he store ds pee d
to th em aximum speed. R
Distanc eP ilot DISTRONI Cisa ctivated
( Y
page 140):
On eort wo segments in th es et spee dr ange
ligh tu p. R
Distanc eP ilot DISTRONI Cd etects av ehicl ei n
fron tm oving mor es lowly than th es to re d
speed:
The segments between th es pee doft he vehi-
cle in fron ta nd th es to re ds pee dl igh tu p.
Tachometer
! Do no td riv eint he overrevving range, as this
could damag et he engine.
The red ban dint he tachometer indicates th e
engine's overrevving range.
The fuel suppl yisi nterrupted to protect th e
engin ew hen th er ed ban disr eached.
Outsid et emperatur ed isplayYou should pay special attention to road condi-
tion sw hen temperatures are aroun df re ezing
point.
Bea rinm in dt ha tt he outside temperature dis-
play indicates th et em perature measured and
does no tr ecord th er oad temperature.
The outside temperature display is in th em ulti-
function display ( Y
page 165).
Ac ha ng eint he outside temperature is shown in
th em ultifunction display after ad elay.Display sa nd operation 163
On-boar dc omputer and displays Z

Service menu Depending on the equipment installed in the
vehicle, you have the following options in the
Serv. menu:R
Calling up display messages ( Y
page 178)R
Restarting the tire pressure loss warning sys-
tem ( Y
page 262)R
Checking the tire pressure electronically
( Y
page 262)R
Calling up the service due date
( Y
page 235)
Settings menu
Introduction Depending on the equipment installed in the
vehicle, in the Sett. menu you have the follow-
ing options: R
Changing the instrumen tc luster settings
( Y
page 172)R
Changing the light settings ( Y
page 172)R
Changing the vehicle settings ( Y
page 173)R
Changing the convenience settings
( Y
page 174)R
Restoring the factory settings ( Y
page 175)
Instrument cluster
Selecting the distance unit The Display Unit Speed-/Odometer: func-
tion allow sy ou to choose whether certain dis-
play sa ppear in kilometers or miles in the mul-
tifunction display. 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
Instrument Cluster submenu.X
Press v to confirm.X
Press the d or c button to select the
Display Unit Speed-/Odometer function.
The current setting km or miles appears.X
Press the v button to save the setting.
The selected unit of measurement for distance
applie st o:R
the digital speedometer in the Trip menuR
the odometer and trip odometer R
the trip computer R
the current consumption and the range R
navigation instructions in the Navi menuR
cruise control R
Distanc eP ilot DISTRONIC R
ASSYST PLUS service interval display
Selecting permanent display The Permanent Display: function allow sy ou
to choose whether the multifunction display
always shows the outside temperature or the
speed.
The speed display is inverse to the speedome-
ter. 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
Instrument Cluster submenu.X
Press v to confirm. X
Press the d or c button to select the
Permanent Display: function.
The current setting, Outside Temperature
or Speedometer [km/h] or Speedometer
[mph] ,a ppears. X
To change the setting: press v again.
Lights
Setting the daytime running lights This function is not available in Canada. 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
Light submenu. X
Press v to confirm. X
Press the d or c button to select the
Daytime Running Lights function.
If the Daytime Running Lights function has
been switched on, the cone of light and the

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
Automatic Door Lock function.
When the Automatic Door Lock function is
activated, the multifunction display shows the
left-hand vehicle door in orange. X
Press the v button to save the setting.
For further information on the automatic locking
feature, see ( Y
page 69).
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 7 symbol in the multifunction display
lights up orange. X
Press the v button to save the setting.
Convenience
Activating/deactivating the EASY-
ENTRY/EXI Tf eature
G WARNING
When the EASY-ENTRY/EXIT feature adjusts
the steerin gw heel, you and other vehicle
occupant s–p articularly children –c ould
become trapped. There is ar isk of injury.
While the EASY-ENTRY/EXIT feature is mak-
ing adjustments, make sure that no one has
any body parts in the sweep of the steering
wheel. If somebody becomes trapped: R
press one of the memory function position
buttons, or R
move the switch for steerin gw heel adjust-
ment in the opposite direction to that in
which the steerin gw heel is moving.
The adjustmen tp rocess is stopped. 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
Using d or c ,s elect the Easy Entry/
Exit function.
If the Easy Entry/Exit function is activated,
the multifunction display shows the steering
wheel in orange. X
Press the v button to save the setting.
Further information on the EASY-ENTRY/EXIT
feature ( Y
page 87).
Switching the belt adjustment on/off 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
Belt Adjustment function.
When the Belt Adjustment function is acti-
vated, the seat belt is displayed in orange in
the multifunction display. X
Press the v button to save the setting.
For further information on belt adjustment, see
( Y
page 41).
Switching the fold-in mirrors when lock-
ing feature on/off
This function is only availabl ew hen the vehicle is
equipped with the electrical fold-in function.
This function is only availabl einC anada.
When you activat et he Auto. Mirror Folding
function, the exterior mirrors are folded in when
the vehicle is locked.
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 89), they will not fold out automatically.174
Menus and submenus
On-board computer and displays

Display messages
Possible causes/consequences and P Solutions
The yellow $ warning lamp and th er ed I (US Ao nl y) or $
(Canada only) indicator lamp ligh tu p.
The electric parking brak eism alfunctioning .
To release: X
Switc ho ff th ei gnition and tur nitb ac ko n.X
Releas et he electric parking brak em anually.
or X
Releas et he electric parking brak ea utomatically ( Y
page 132).
If th ee lectric parking brak es ti ll canno tber eleased:X
Do no td rive on .X
Consult aq ualified specialist workshop .
The red I (US Ao nl y) or $ (Canada only) indicator lamp flashes
and th ey ellow $ warning lamp lights up.
The electric parking brak eism alfunctioning .
To release: X
Switc ho ff th ei gnition and tur nitb ac ko n.X
Releas et he electric parking brak em anually.
To apply : X
Switc ho ff th ei gnition and tur nitb ac ko n.X
Apply th ee lectric parking brak em anually.
If th er ed I (US Ao nl y) or $ (Canada only) indicator lamp con-
tinue stof lash: X
Do no td rive on .X
Secur et he vehicl ea gainst rollin ga way ( Y
page 275).X
Shift th et ra nsmission to position P .X
Turn th ef ront wheels toward st he curb.X
Consult aq ualified specialist workshop .182
Display messages
On-boar dc omputer an dd isplays