2017 MERCEDES-BENZ SLC brakes

brake system and prevents the brakes from
overheating and wearing too quickly.
Use cruise control only if road and traffic con-
dition sm ake it appropriate to maintain as teady
speed for ap rolonged period. You can stor ea ny
road speed above 20 mph (30 km/h).
Important safet yn otesIf you fail to adapt your driving style, cruise con-
trol can neither reduce the risk of an accident
nor override the laws of physics. Cruise control
cannot take int oa ccoun tt he road, traffic and
weather conditions. Cruise control is only an
aid. You are responsible for the distance to the
vehicle in front, for vehicle speed, for brakin gi n
good time and for staying in lane.
Do not use cruise control: R
in road and traffic condition sw hich do not
allow you to maintain ac onstan ts peed e.g. in
heavy traffic or on winding roads R
on slippery road surfaces .B raking or accel-
eratin gc ould cause the drive wheels to lose
traction and the vehicle could then skid R
when ther eisp oor visibility, e.g. due to fog,
heavy rain or snow
If ther eisac hang eofd rivers, advise the new
driver of the speed stored.
Cruise control lever
C
Stores the curren ts peed or ah igher speed
D
Storing the curren ts peed or calling up the
last stored speed

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

Changing lanes If you want to change to th eo vertakin gl ane on
multi-lan er oads ,D istance Pilot DISTRONIC sup-
port sy ou ifR
you are driving faster than 45 mph (70 km/h) R
Distance Pilot DISTRONIC is maintaining the
distanc etoav ehicle in frontR
you switch on th ea ppropriat et ur ns ignalR
Distance Pilot DISTRONIC does no tc urrently
detect ad anger of collision
If these condition sa re fulfilled, your vehicle is
accelerated. Acceleration will be interrupte di f
changin gl ane st akes to ol on gorift he distance
between your vehicle and th ev ehicle in front
become st oo small.
i When you change lanes, Distance Pilot
DISTRONIC monitors th el eft lane (on left-
hand-driv ev ehicles) or th er igh tl ane (on right-
hand-driv ev ehicles).
Stopping
G WARNING
If you leave th ev ehicle when it is only being
braked by Distance Pilot DISTRONIC, it could
roll away if: R
there is am alfunctio nint he system or in
th ev oltage supply.R
Distance Pilot DISTRONIC is switche do ff
usin gt he cruise control lever, e.g .bya vehi-
cle occupant or from outside th ev ehicleR
th ee lectrical system in th ee ngine com-
partment, th eb attery or th ef use sa re tam-
pere dw ith.R
th eb attery is disconnectedR
th ev ehicle is accelerated, e.g .bya vehicle
occupant.
Ther eisar isk of an accident.
Before leavin gt he vehicle ,a lways deactivate
Distance Pilot DISTRONIC and secure the
vehicle against rolling away.
Further informatio nond eactivatin gD istance
Pilot DISTRONIC ( Y
page 146).
If Distance Pilot DISTRONIC detect st ha tt he
vehicle in fron tiss to pping, it brakes your vehicle
until it is stationary. Once your vehicle is stationary, it remains sta-
tionar ya nd you do no tn ee dtod epress the
brake.
i Afte rat ime, th ee lectric parking brake
secures th ev ehicle and relieves th es ervice
brake.
i Dependin gont he specified minimum dis-
tance, your vehicle will com etoas ta ndstil la t
as ufficient distanc eb ehin dt he vehicle in
front. The specified minimum distanc eiss et
usin gt he control on th ec ru ise control lever.
When Distance Pilot DISTRONIC is act ivated,
t h et ra n
smission is shifte da utomatically to
position P if: R
th ed river' ss eat belt is no tf astene da nd the
driver' sd oor is open. R
th ee ngine is switched off ,u nless it is auto-
matically switched off by th eE CO start/stop
function.
The electric parking brak es ecures th ev ehicle
automatically if Distance Pilot DISTRONIC is
activated when th ev ehicle is stationar ya nd:R
as ystem malfunctio no ccurs.R
th ep ower supply is no ts ufficient.
If am alfunctio no ccurs, th et ra nsmission may
also shif ti nt op osition P automatically.
Settin gas peedKeep in min dt ha titm ay tak eab rie fm oment
until th ev ehicle has accelerate dorb raked to
th es pee ds et. X
To adjust th es et spee di n1m ph incre-
ments (1 km/h increments): briefly press
th ec ru ise control leve ru p C to th ep ressure
poin tf or ah igher speed, or down D for a
lower speed.
Every tim et he cruise control leve risp ressed
up or down ,t he last spee ds to re disi ncreased
or reduced. X
To adjust th es et spee di n5m ph incre-
ments (1 0k m/h increments): briefly press
the cruise control lever up C past the pres-
sure point for ah igher speed, or down D for
al ower speed.
Ever yt ime the cruise control lever is pressed
up or down, the last speed stored is increased
or reduced.144
Driving systems
Driving and parking

HOLD function
General notes The HOLD function can assist the drive rint he
following situations: R
when pulling away, especially on steep slopes R
when maneuvering on steep slopes R
when waiting in traffic
The vehicl eisk ept stationary without the driver
having to depress the brake pedal.
The braking effect is cancele da nd the HOLD
function deactivated when you depress the
accelerator peda ltop ul la way.
Important safety notes
G WARNING
When leaving the vehicle, it can still roll away
despite being braked by the HOLD function if: R
there is am alfunction in the system or in
the voltag es upply.R
the HOLD function has been deactivated by
pressing the accelerator peda lort he brake
pedal, e.g. by av ehicl eo ccupant.R
the electrical system in the engine com-
partment, the battery or the fuse sh ave
been tampere dw ith.R
the battery is disconnected
There is ar isk of an accident.
If you wis htoe xit the vehicle, alway st urn off
the HOLD function and secure the vehicle
against rolling away.
! When Distance Pilot DISTRONIC or the
HOLD function is activated, the vehicle
brakes automatically in certain situations.
To avoi dd amage to the vehicle, deactivate
Distance Pilot DISTRONIC and the HOLD
function in the following or similar situations: R
when towing the vehicle R
in the car wash
Deactivating the HOLD function ( Y
pag e1 48). Activation conditions You can activate the HOLD function if all of the
following conditions are fulfilled: R
the vehicl eiss tationary. R
the engine is running or if it has been auto-
matically switched off by the ECO start/stop
function. R
the driver's door is closed or you rs eat bel ti s
fastened. R
the electric parking brake is released. R
the transmission is in position D , R or N .R
Distance Pilot DISTRONIC is deactivated
Activating the HOLD function X
Make sure that the activation conditions are
met. X
Depress the brake pedal. X
Quickly depress the brake peda lf urther
until C appears in the multifunction display.
The HOLD function is activated. You can
release the brake pedal.
i If depressing the brake peda lt he first time
does not activate the HOLD function, wait
briefly and then try again.
Deactivatin gt he HOLD functionThe HOLD function is deactivated automatically
if: R
you accelerate and the transmission is in
position D or R . R
you shift the transmission to position P .R
you apply the brakes again with ac ertain
amount of pressure until HOLD disappears
from the multifunction display. R
you secure the vehicl eu sing the electric park-
ing brake. R
you activate Distance Pilot DISTRONIC.
i After at ime, the electric parking brake
secure st he vehicl ea nd relieves the service
brake.148
Driving systems
Driving and parking

! 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

obtained at aq ualified specialist workshop, e.g.
an authorized Mercedes-Benz Center.
Driving abroad An extensive Mercedes-Benz Service network is
also available in other countries. You can obtain
further information from any authorized
Mercedes-Benz Center.
Care
Notes on care
H Environmental note
Dispose of empty packaging and cleaning
cloths in an environmentally responsible man-
ner.
! For cleaning your vehicle, do not use any of
the following: R
dry, rough or hard cloths R
abrasive cleaning agents R
solvents R
cleaning agents containing solvents
Do not scrub.
Do not touch the surfaces or protective films
with hard objects, e.g. ar ing or ice scraper.
You could otherwise scratc hord amage the
surfaces and protective film.
! Do not park the vehicle for an extended
period straight after cleaning it, particularly
after having cleaned the wheels with wheel
cleaner. Wheel cleaners could cause
increased corrosion of the brake discs and
brake pads/linings. For this reason, you
should drive for af ew minutes after cleaning.
Brakin gh eats the brake discs and the brake
pads/linings, thus drying them. The vehicle
can then be parked.
Regula rc are of your vehicle is ac ondition for
retaining the quality in the long term.
Use care products and cleaning agents recom-
mended and approved by Mercedes-Benz. Washing the vehicle and cleaning the
paintwork
Automatic car wash
G WARNING
Brakin ge fficienc yisr educed after washing
the vehicle. There is ar isk of an accident.
After the vehicle has been washed, brake
carefully while paying attention to the traffic
conditions until full braking power is restored.
! If DISTRONIC PLUS or the HOLD function is
activated, the vehicle brakes automatically in
certain situations.
To prevent damage to the vehicle, deactivate
DISTRONIC PLUS and the HOLD function in
the following or other similar situations: R
when towing the vehicle R
in the car wash
! It is preferable to use car washes with
adjustable high-pressure pre-cleanin gt hat
corresponds to the specification for the Cab-
riolet program. In car washes that use high
water pressures, there is ar isk that as mall
amount of water may leak into the vehicle.
! Designo retractable hardtop: make sure
that the vehicle is not subsequently treated
with hot wax.
! Lock the car if you wash it in an automatic
car wash. Otherwise, the vehicle might be
damaged.
! Never clean your vehicle in aT ouchless
Automatic Car Wash as these use special
cleaning agents. These cleaning agents can
damage the paintwork or plastic parts.
If you have your vehicle cleaned in ah igh-
pressure automatic car wash, small amounts
of water may enter the vehicle.
! Make sure that the automatic transmission
is in position N when washing your vehicle in
at ow-through car wash. The vehicle could be
damaged if the transmission is in another
position.236
Care
Maintenance and care

Do not us ep ower washers with circular jet
nozzles to clean the vehicle. Hav ed amaged
tire sorc hassi sc omponents replaced imme-
diately.
! Do not us ea cidi cw heel cleaning products
to remove brake dust. Thi sc ould damage
whee lb ol ts and brake components.
! Do not park your vehicl ef or al on gp er io do f
time directl ya ft er cleaning, particularly after
cleaning the whee lr im with whee lc leaner.
Whee lc leane rc an lead to the increased cor-
rosio noft he brake discs and pads .T herefore,
drive for af ew minute sa ft er cleaning. By
heating up the brakes ,t he brake discs and
pads dry .T he vehicl ec an the nb ep ar ked for a
long perio doft ime.
Cleanin gt he windows
G WARNING
Yo uc ould become trapped by the windshield
wipers if the ys tart moving whil ec leaning the
windshiel dorw iper blades. There is ar is ko f
injury.
Alway ss wi tch off the windshiel dw iper sa nd
the ignition befor ec leaning the windshiel do r
wipe rb lade s.
! Do not us ed ry cloths, abrasive products,
solvents or cleaning agents containing sol-
vents to clean the insid eoft he windows .D o
not touch the insides of the windows with
hard objects ,e .g .ani ce scrape rorr ing. There
is otherwis ear is kofd amagin gt he windows.
! Clea nt he water drainage channel soft he
windshiel da nd the rea rw in do watr egular
intervals .D eposits such as leaves, petal sa nd
pollen ma yu nder certain circumstances pre-
vent water fro md raining away .T hi sc an lead
to corrosion damage and damage to elec-
troni cc omponents.X
Clea nt he insid ea nd outside of the windows
with ad am pc loth and ac leaning product that
is recommende da nd approved by Mercedes-
Benz. Cleanin gw ip er blades
G WARNING
Yo uc ould become trapped by the windshield
wipers if the ys tart moving whil ec leaning the
windshiel dorw iper blades. There is ar is ko f
injury.
Alway ss wi tch off the windshiel dw iper sa nd
the ignition befor ec leaning the windshiel do r
wipe rb lade s.
! Do not pull the wipe rb lade .O therwise, the
wipe rb lade could be damaged.
! Do not clean wipe rb lade st oo ofte na nd do
not ru bt he mt oo hard. Otherwise, the graph-
ite coating could be damaged. Thi sc ould
cause wipe rn oise.
! Hol dt he wipe ra rm securel yw he nf olding
back. The windshiel dc ould be damage dift he
wipe ra rm smacks against it suddenly. X
Fol dt he windshiel dw iper arms away fro mt he
windshield. X
Carefully clean the wipe rb lade sw it had am p
cloth. X
Fol dt he windshiel dw iper arms back again
befor es wi tching on the ignition.
Cleanin gt he exterior lighting
! Onl yu se cleaning agents or cleaning cloths
which ar es ui tabl ef or plastic light lenses.
Unsuitabl ec leaning agents or cleaning cloths
could scratch or damage the plastic light len-
ses. X
Clea nt he plastic lense soft he exterio rl ig hts
with aw et spong ea nd am il dc leaning agent,
e.g .M er cedes-Benz car shampo oorc leaning
cloths.
Cleanin gt he mirro rt urn signals
! Onl yu se cleaning agents or cleaning cloths
tha ta re suitabl ef or plastic lenses. Unsuitable
cleaning agents or cleaning cloths could
scratch or damage the plastic lense soft he
mirror tur ns ig nals. X
Clea nt he plastic lense soft he mirror tur ns ig -
nal sint he exterio rm irror housing using aw et
spong ea nd mil dc leaning agent, e.g.Care 239
Maintenance and care Z

Weight of optional extras The combined weight of those optiona le xtras
that weigh more than the replaced standard
parts and more than 2.3 kg (5 lbs) .T hese
optiona le xtras, such as high-performance
brakes ,l eve lc ontrol, ar oof rack or ah igh-per-
formance battery ,a re not included in the curb
weight and the weight of the accessories.
TIN (Tire Identification Number) This is au nique identifier which can be use db y
at ire manufacturer to identify tires, for example
for ap roduct recall, and thus identify the pur-
chasers. The TIN is made up of the manufactur-
er's identity code, tire size, tire type code and
the manufacturing date.
Load bearin gi ndexThe loa db earing index (also loa di ndex) is ac ode
that contains the maximu ml oa db earing capa-
city of at ire.
Traction Tractio nist he result of friction between the tires
and the road surface.
Treadwear indicators Narrow bars (tread wea rb ars )t hat are distrib-
uted over the tire tread. If the tire tread is level
with the bars ,t he wea rl imi to f