warning light MERCEDES-BENZ C-Class COUPE 2017 CL205 Service Manual

For safety reasons, Mercedes-Benz recom-
mends only installing the following brake disks
and brake pads/linings:
Rbrake disks that havebeena pproved by
Mercedes-Benz
Rbrake pads/lining sthat hav ebeena pproved
by Mercedes-Benz or that are of an equivalent
standard of quality
Other brake disks or brake pads/lining scan
compromise the safety of your vehicle.
Alway sreplace al lbrake disks and brake pads/
linings on an axl eatthe sam etime. Always
install new brake pads/lining swhenr eplacing
brake disks.
The vehicle is equipped with lightweight brake
disks to which the wheel assembly with rim and
threaded connectio nismatched.
The use of brake disks other than those
approved by Mercedes-Benz can chang ethe
track width and is subject to approval ,ifappli-
cable.
Shock-typ eloads whe nhandling the brake
discs, such as whe nchanging wheels ,can lead
to areduction in comfortw hend riving with light-
weigh tbrake discs. Avoid shock-type loads on
the lightweight brake disks, particularly on the
brake plate.
Mercedes-Benz recommends that yo uonly use
brake fluid that has bee nspeciall yapproved for
your vehicle by Mercedes-Benz, or which corre-
sponds to an equivalent quality standard .Brake
fluid which has not bee napproved for
Mercedes-Benz vehicles or which is not of an
equivalent quality could affect your vehicle's
operating safety.
High-performance and ceramic brakes
(Mercedes AMG vehicles)
The AMG brake systems are designe dfor heavy
loads. Thism ay leadtonoisew henb raking. This
will depend on:
RSpeed
RBraking force
REnvironmental conditions, such as tempera-
ture and humidity
The wear of individua lcomponents of the brake
system, such as the brake pads/lining sorbrake
discs, depends on the individua ldriving style
and operating conditions.
For this reason, it is impossible to state amile-
ag ethat will be valid under al lcircumstances. An aggressive driving styl
ewilll ea dtoh ighw ear.
You can obtain more information on this from a
qualified specialist workshop.
New and replaced brake pads and discs only
reach thei roptimum braking effect afte rseveral
hundred kilometers of driving. Compensate for
this by applying greater force to the brake pedal.
Kee pthis in mind ,and adap tyou rd riving and
braking accordingly during this break-in period.
Excessive heavy braking results in correspond-
ingl yhighb rake wear. Observe the brake wear
warning lamp in the instrument cluster and note
any brake statu smessages in the multifunction
display. Especiall yfor hig hperformance driving,
it is important to maintain and hav ethe brake
system checked regularly.
Drivin gonw etroads
Hydroplaning
If water has accumulated to acertain depth on
the roads urface,there is adanger of hydro-
planing occurring, even if:
Ryo ud rive at low speeds.
Rthe tires hav eadequate treadd epth.
For this reason, in the event of heavy rai norin
conditions in which hydroplaning may occur,
yo um ustd rive in the following manner:
Rlower your speed.
Ravoid ruts.
Ravoid sudden steering movements.
Rbrake carefully.
Drivin gonfloodedroads
!Bearinm ind that vehicles traveling in front
or in the opposite directio ncreate waves. This
may cause the maximum permissibl ewater
depth to be exceeded.
Failure to observe these notes may result in
damag etothe engine, electricals ystems and
transmission.
If yo uhavetod rive on stretche sofroadonw hich
water has collected ,please bea rinmind that:
Rin the case of standing water, the water level
may be no higher than the lower edg eofthe
vehicle body
Ryo us hould drive no faster than at awalking
pace
Drivin gtips159
Drivin gand parking
Z

vehicleinfront, for vehicl espeed, for braking in
good time and for staying in you rlane.
Do not use cruise control:
Rin road and traffic conditions which do not
allow you to maintai naconstant speed, e.g. in
heavy traffic or on winding roads
Ron slippery road surfaces. Braking or accel-
erating could caus ethe drive wheels to lose
traction and the vehicl ecould then skid
Rwhen there is poor visibility, e.g. due to fog,
heavy rain or snow
If there is achange of drivers ,advise the new
driver of the speeds tored.
iThe speedindicated in the speedometer
may differ slightly from the speeds tored.
Cruise control lever
:Activates or increasesspeed
;Activates or reduces speed
=Deactivates cruise control
?Activates at the current speed/last stored
speed
When you activate cruise control, the stored
speediss howninthe multifunction display for
five seconds. In addition, the ésymbol
appears in the multifunction display.
Speedometer with segments: when cruise
control is activated ,the segments from the
stored speedtot he maximumpermitted speed
light up.
Storing and maintainingt he current
speed
You can store the current speedify ou are driv-
ing faster than 20 mph (30 km/h).
XAccelerate the vehicl etothe desired speed.
XBriefly press the cruise control lever up :or
down ;.
XRemove you rfoot from the accelerator pedal.
Cruise control is activated .The vehicl eauto-
matically maintains the stored speed.
iCruise control may be unable to maintain
the stored speedonu phill gradients. The
stored speedisr esumedwhen the gradient
evens out. Cruise control maintains the
stored speedond ownhill gradients by auto-
matically applying the brakes.
Storing the current spee dorcalling up
the last stored speed
GWARNING
If you call up the stored speeda nd it is lower
than the current speed, the vehicl edeceler-
ates. If you do not know the stored speed, the vehicl ecould decelerate unexpectedly. There
is ar isk of an accident.
Pay attention to the road and traffic condi-
tions before calling up the stored speed. If you
do not know the stored speed, store the
desired speeda gain.
XBriefly pullthe cruise control lever towards
you ?.
XRemove you rfoot from the accelerator pedal.
The first time cruise control is activated ,it
stores the current speedorr egulates the
speedoft he vehicletothe previousl ystored
speed.
Setting aspeed
Keep in mind that it may take abrief moment
until the vehicl ehas accelerated or braked to
the speeds et.
XPress the cruise control lever up :for a
highers peedord own;for alower speed.
XTo adjust the set spee din1 mph incre-
ments (1 km/h increments): brieflypress
Driving systems161
Driving and parking
Z

the cruisecontro llev er up :or down ;to
the pressure point.
Ever ytim et he cruis econtro llev er is pressed
up : or down ;the last spee dstored is
increasedorr educed.
XTo adjustthe setspeed in 5mph incre-
ments (10k m/h increments): briefly press
the cruise control lever up :or down ;to
the pressure point.
Ever ytime the cruise control lever is pressed
up : or down ;the last speed stored is
increased or reduced.
iCruise control is not deactivated if you
depress the accelerator pedal. If you acceler-
ate to overtake, cruise control adjusts the
vehicle's speed to the last speed stored after
you have finished overtaking.
Deactivating cruise control
There are several ways to deactivate cruise con-
trol:
XBriefly press the cruise control lever forwards
=.
or
XBrake.
Cruise control is automatically deactivated if:
Ryou engage the electric parkin gbrake
Ryou are driving at less than 20 mph (30 km/ h)
RESP®intervenes or youdeactivate ESP®
Ryous hift the transmission to position Nwhile
driving
If cruis econtro lisdeactivated ,you will hear a
warning tone .You will see the Cruise Con‐
trolOffmessage in the multifunctio ndisplay
for approximately fiv eseconds.
iWhen yo uswitch off the engine ,the last
spee dstored is cleared.
DISTRONIC PLUS
General notes
DISTRONI CPLUSregulate sthe spee dand auto-
maticall yhelps youm aintain the distance to the
vehicl edetecte dinf ront. Vehicles ar edetected
with the ai dofthe rada rsensor system.
DISTRONI CPLUSb rakes automaticall ysothat
the set spee disnot exceeded. Chang
einto alower gear in good time on long
and stee pdownhil lgradients .Thisise specially
important if the vehicl eisladen .Byd oing so, you
will make us eofthe braking effect of the engine.
Thi srelieves the load on the brake system and
prevents the brakes fromo verheating and wear-
ing too quickly.
If DISTRONI CPLUSd etects thatt here isarisko f
ac ollision, yo uwillbew arned visuall yand
acoustically. DISTRONI CPLUSc anno tprevent a
collision withou tyou rintervention. An intermit-
tent warning tone will thens ound and the dis-
tance warning lamp will light up in the instru-
ment cluster .Brake immediatel yinorder to
increase the distance to the vehicl einfront or
take evasive action provided it is safe to do so.
DISTRONI CPLUSo perates in range between
0m ph (0 km/h )and 120 mph (20 0km/h).
Do not us eDISTRONI CPLUSw hile drivin gon
roads with stee pgradients.
As DISTRONI CPLUSt ransmits ra da
rw ave
s ,it
can resemble the rada rdetectors of the respon-
sibl eauthorities. Yo ucan refer to the relevant
chapte rinthe Operator' sManualifq uestions
ar ea sked abou tthis.
iUSA only: Thi sdeviceh asbeen approved by
the FCC as a"Vehi cularRadar System" .The
rada rsensor is intende dfor us einana uto-
motive rada rsystem only. Removal ,tamper-
ing ,ora ltering of the devic ewillv oida ny war-
ranties, and is not permitted by the FCC .Do
not tampe rwith, alter, or us einany non-
approved way.
Any unauthorized modification to thisd evice
could voi dthe user' sauthority to operate the
equipment.
iCanad aonly: Thi sdevicec omplies with
RSS-210 of Industry Canada. Operatio nis
subject to the following two conditions:
1. Thi sdevicem aynot cause harmfu linter-
ference ,and
2. Thi sdevicem usta ccep tany interference
received, including interferenc ethatm ay
cause undesired operatio nofthe device.
Removal ,tampering, or altering of the device
will voi dany warranties, and is not permitted.
Do not tampe rwith, alter, or us einany non-
approved way.
Any unauthorized modification to thisd evice
could voi dthe user' sauthority to operate the
e

quipment.
162Driving system s
Driving an dparking

The system is switched to passive and no longer
assists you by performingsteeringinterventions
if:
Ryou actively change lane
Ryou switch on the turn signal
Rtake your hands off the steerin gwheel or do
not steer for aprolonged period of time
iSteering Assist and Stop&Go Pilot are acti-
vated again automatically after alane change
is completed.
Steering Assist and Stop&Go Pilot do not pro-
vide any support:
Ron very sharp corners
Rwhen aloss of tire pressure or adefective tire
has been detected and displayed
Pay attention also to the important safety notes for DISTRONIC PLUS (
Ypage 163).
The steerin ginterventions are carried out with a
limited steerin gmoment.T he system requires
the driver to keep his hands on the steering
wheel and to steer himself.
If you do not steer yourself or if you take your
hands off the steerin gwheel for aprolonged
period of time, the system will first alert you with
av isual warning. Asteerin gwheel symbol
appears in the multifunction display.Ify ou have
still not started to steer and have not taken hold
of the steerin gwheel after five seconds at the
latest, awarning ton ealso sounds to remind you
to take control of the vehicle. Steering Assist
and Stop&Go Pilot are switched to passive.
DISTRONIC PLUS remains active.
Activating Steering Assist and Stop&Go
Pilot
XPress button ;.
Indicator lamp :lights up. The DTR+:
Steering Assist. Onmessage appears in the multifunction display.S
teering Assist and
Stop&Go Pilot are activated.
Information in the multifunction display
If Steering Assist and Stop&Go Pilot are activa-
ted but is not ready for asteerin gintervention,
steerin gwheel symbol :appears in gray. If the
system provides you with support by means of
steerin ginterventions, symbol :is shown in
green.
Deactivating Steering Assist and Stop&Go
Pilot
XPress button ;.
Indicator lamp :goes out. The DTR+:
SteeringAssist.Offmessage appears in
the multifunction display.S teering Assist and
Stop&Go Pilot are deactivated.
When DISTRONIC PLUS is deactivated or not
available, Steering Assist and Stop&Go Pilot are deactivated automatically.
HOLD function
General notes
The HOLD function can assist the driver in the
following situations:
Rwhen pulling away,e specially on steep slopes
Rwhen maneuvering on steep slopes
Rwhen waiting in traffic
The vehicle is kept stationary without the driver having to depress the brake pedal.
The braking effect is canceled and the HOLD
function deactivated when you depress the
accelerator pedal to pull away.
Driving systems169
Driving and parking
Z

RACE START Canceledmessage appears in
the multifunction display.
XTake your foot off the brake, but keep the
accelerator pedal depressed.
The vehicle pullsa wayatmaximum acceler-
ation.
The RACE
STARTActivemessage appears in
the multifunction display.
RACE START is deactivated when the vehicle
reaches aspeed of approximately 30 mph (Can-
ada: 50 km/h).
RACE START is deactivated immediately if you
release the accelerator pedal during RACE
START or if any of the activation conditions are
no longer fulfilled. The RACE START Not Pos‐
sible See Operator's ManualorRACESTART Canceledmessage appears in the mul-
tifunction display.
iIf RACE START is used repeatedly within a
short period of time, it is only available again
after the vehicle has been driven acertain
distance.
AIRMATIC
General notes
AIRMATIC is an air suspension with variable
damping for improved driving comfort. All-round
level control ensures the best possible suspen-
sion and constant ground clearance, even with a
laden vehicle. When you drive fast, the vehicle is
lowered automaticallytoi mprove driving safety
and to reduce fuel consumption. There is also
the option to manuallya djust the vehicle level.
AIRMATIC consists of level setting, level control
and ADS (Adaptive Damping System).
The vehicle level can be set using the DYNAMIC
SELECT switch (
Ypage 139) or the level button
(Ypage 172). The setting always corresponds
to the last selected function.
Important safety notes
GWARNING
When the vehicle is being lowered, people
could become trapped if their limbs are
between the vehicle body and the wheels or
underneath the vehicle. There is arisk of
injury.
Make sure no one is underneath the vehicle or
in the immediate vicinity of the wheel arches
when the vehicle is being lowered.
iIf one of the doors is open, the vehicle is not
lowered.
Vehicle level
Setting the raised vehiclel evel
It is possible to choose between the "Normal"
and "Raised" vehicle levels below aspeed of
50 mph (80 km/h). Select the "Normal" setting
for normal road surfaces and "Raised" for driving
with snow chains or on particularlyp oor road
surfaces. Your selection remains stored even if
you remove the SmartKey from the ignition lock.
XStart the engine.
If indicator lamp ;is not lit:
XPress button :.
Indicator lamp ;lights up. The vehicle is
raised by 0.6 in (15 mm) compared to the
normal level.
The Vehicle
Risingmessage appears in the
multifunction display.
iThe message disappears after ten seconds,
irrespective of the level reached. If necessary,
the vehicle is raised further.
The "Raised level" setting is canceled if you:
Rdrive faster than 75 mph (120 km/h).
Rdrive for approximately three minutes at a
speed over 50 mph (80 km/h).
The "Raised level" remains active when you are
not driving within these speed ranges.
172Driving systems
Driving and parking

PARKTRONIC is activated automatically when
you:
Rswitch on the ignition
Rshift the transmission to positionD,Ror N
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 object sinto con-
sideration that are:
Rbelow the detection range, e.g. people, ani-
mals or objects.
Rabove the detection range, e.g. overhanging
loads, truck overhangs or loading ramps.
:Sensors in the frontb umper, left-hand side
(example)
The sensors must be free from dirt, ice or slush.
They can otherwise not function correctly. Clean
the sensors regularly, takin gcare not to scratch
or damage them (
Ypage 296).
Fronts ensors
CenterApprox .40in( approx.
100 cm)
CornersApprox .24in( approx.
60 cm)
Rear sensors
CenterApprox .48in( approx.
120 cm)
CornersApprox .32in( approx.
80 cm)
Minimum distance
CenterApprox .8in (approx. 20 cm)
CornersApprox .6in (approx. 15 cm)
If there is an obstacle within this range, the rel-
evant warning displays light up and awarning
ton esounds. If the distanc efalls below the min-
imum, the distanc emay no longer be shown.
Driving systems175
Driving and parking
Z

Warning displays
:Segments on the left-hand side of the vehi-
cle
;Segments on the right-hand side of the vehi-cle
=Segments showing operational readiness
The warning display sshow the distance
between the sensors and the obstacle. The
warning display for the front area is in the instru-
ment cluster. The warning display for the rear
area is located on the headliner in the rear com-
partment.
The warning display for each side of the vehicle
is divided into five yellow and two red segments.
PARKTRONIC is operational if operational read-
iness indicator =lights up.
The selected transmission position and the
direction in which the vehicl eisrolling deter-
mine which warning display is active whe nthe
engine is running.
Transmission posi-
tionWarning display
DFront area activated
R, Nor the vehicl eis
rolling backwardsRea rand front areas
activated
PNo area sactivated
One or more segments light up as the vehicle
approache sanobstacle, depending on the vehi-
cle's distance from the obstacle.
From the:
Rsixth segment onwards, you wil lhearani nter-
mittent warning tone for approximately two
seconds.
Rseventh segment onwards, you wil lheara
warning tone for approximately two seconds. This indicates that you have now reache
dthe
minimu mdistance.
Deactivating/activating PARKTRONIC
dSwitch on the dashboard
eSwitch in the center console
:Deactivates/activates PARKTRONIC
;Indicator lamp
If indicator lamp ;lights up, PARKTRONIC is
deactivated. Active Parking Assist is then also
deactivated.
iPARKTRONIC is automatically activated
whe nyou turn the SmartKey to position 2in
the ignition lock.
176Driving systems
Driving and parking

Problems with PARKTRONIC
ProblemPossible causes/consequences andMSolutions
Only the red segments in
the PARKTRONIC warn-
ing displaysare lit. You
also hear awarning tone
for approximately two
seconds.
PARKTRONIC is then
deactivated and the indi-
cator lamp on the
PARKTRONIC button
lights up.PARKTRONIC has malfunctioned and has switched off.
XIf problems persist, have PARKTRONIC checked at aqualified spe-
cialist workshop.
Only the red segments in
the PARKTRONIC warn-
ing displaysa re lit.
PARKTRONIC is then
deactivated.The PARKTRONIC sensors are dirty or there is interference.
XClean the PARKTRONIC sensors (Ypage 296).
XSwitch the ignition back on.
The problem may be caused by an external source of radio or ultra-
sound waves.
XSee if PARKTRONIC functions in adifferent location.
Active Parking Assist
General notes
Active Parking Assist is an electronic parking aid
with ultrasound. It measures the road on both
sides of the vehicle. Aparking symbol indicates
as uitable parking space. Active steering inter-
vention and brake application can assist you
during parking and when exiting aparking
space. You may also use PARKTRONIC
(
Ypage 174).
Important safety notes
Active Parking Assist is merely 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. Make sure that no persons, ani-
mals or object sare in the maneuvering range.
When PARKTRONIC is switched off, Active Park-
ing Assist is also unavailable.
GWARNING
While parking or pulling out of aparking
space, the vehicle swings out and can drive
onto areas of the oncomingl ane. This could
result inacollision with another road user.
There is arisk of an accident.
Pay attention to other road users. Stop the
vehicle if necessary or cancel the Active Park- ing Assist parking procedure.
!If unavoidable, you should drive over obsta-
cles such as curbs slowly and not at asharp
angle. Otherwise, you may damage the
wheels or tires.
Active Parking Assist may also display spaces
not suitable for parking, e.g.:
Rwhere parking or stopping is prohibited
Rin front of driveways or entrances and exits
Ron unsuitable surfaces
Parking tips:
ROn narrow roads, drive as close to the parking
space as possible.
RParking spaces that are littered or overgrown
might be identified or measured incorrectly.
RParking spaces that are partially occupied by
trailer drawbars might not be identified as
such or be measured incorrectly.
RSnowfall or heavy rain may lead to aparking
space being measured inaccurately.
Driving systems177
Driving and parking
Z

PARKTRONIC is still available. You can take over
the steering, before the vehicle has exited the
parking space completely. This is useful, for
example when you recognize that it is already
possible to pull out of the parking space.
Canceling Active Parking Assist
XStop the movementofthe multifunction
steerin gwheel or steer yourself.
Active Parking Assist will be canceled at once.
The Park Assist Canceled
message
appears in the multifunction display.
or
XPress the PARKTRONIC button (Ypage 176).
PARKTRONIC is switched off and Active Park-
ing Assist is immediately canceled. The Park
Assist Canceledmessage appears in the
multifunction display.
Active Parking Assist is canceled automatically
if:
Rthe electric parking brake is engaged
Rtransmission position Pis selected
Rparking using Active Parking Assist is no lon-
ger possible
Ryou are driving faster than 6mph (1 0km/ h)
Raw heel spins, ESP®intervene sorfails.The
÷ warning lamp lightsupint heinstrument
cluster
Aw arning tone sounds. The parking symbo ldis-
appearsa nd themultifunction display showst he
ParkA ssist Canceled
message.
When Activ eParking Assist is canceled, you
must steer and brak eagain yourself.
If as ystem malfunctio noccurs, th evehicle is
braked to astandstill. To driv eon,depress the
accelerato ragain.
Rea rview camera
General notes
Rear view camera :is an optical parking and
maneuvering aid. It showst hearea behindy our
vehicle with guide line sinthemultimedia sys-
tem.
The area behindt hevehicle is displayedasa
mirror image ,asintherear view mirror.
iThe text shownint hemultimedia system
depends on th elanguage setting. The follow-
ing are examples of rear view camera displays
in th emultimedia system.
Important safety notes
The rear view camera is only an aid. It is no ta
replacement for your attention to your immedi-
ate surroundings. You are always responsible
for safe maneuvering and parking .When maneu-
vering or parking ,makes ure that there are no
persons, animals or object sinthearea in which
you are maneuvering.
Under th efollowingc ircumstances, th erear
view camera will no tfunction,orw ill function in
al imited manner:
Rif th etrunk lid is open
Rin heavyr ain,sno worf og
Rat night or in ver ydark places
Rif th ecamera is exposed to ver ybright light
Rif th earea is lit by fluorescent bulbs or LED
lighting (th edisplay may flicker)
Rif there is asudden chang eintemperature,
e.g .when driving int oaheated garag einwin-
ter
Driving systems181
Driving and parking
Z

CBumper
DRedg uide line at adistance of approximately
12 in (0.30 m) fromthe rearofthe vehicle
The guid elines ar eshown when the transmis-
sion is in position R.
The distance specifications onl yapply to
objects thata reat ground level.
:Fron twarning display
;Additiona lPARKTRONI Cmeasurement
operational readines sindicator
=Rear warning display
Vehicle swithP ARKTRONIC: when
PARKTRONI Cisoperational (
Ypage 176), addi-
tional measurement operational readines sindi-
cator ;appear sinthe multimedia systemd is-
play .Ifthe PARKTRONI Cwarning displays are
active or light up ,warning displays :and =
ar ea lsoa ctive or light up correspondingl yinthe
multimedia systemd isplay.
"Reverse parking "function
Backin gupstraight into aparking space
without turning the steering wheel
:White guid elinew ithou tturning the steering
wheel, vehicl ewidth including the exterior
mirrors (static)
;Yellow guid elinef or the vehicl ewidth
including the exterio rmirrors, for current
steering whee langle (dynamic)
=Yellow guid elineatad istance of approx-
imately 3ft(1.0 m) fromt he rearofthe vehi-
cle
?Re dg uide line at adistance of approximately
12 in (0.3 0m)fromt he rea rofthe vehicle
XMake sure thatt he rearviewc amera is
switched on (Ypage 182).
The lane and the guid elines ar eshown.
XWith the help of white guid eline :,c heck
whether the vehicl ewillf it into the parking
space.
XUsing white guid eline: asag uide ,carefully
back up unti lyou reach the end position.
Re dg uide line?is thenatt he end of the
parking space .The vehicl eisalmostp aralle l
in the parking space.
Driving system s183
Driving an dparking
Z