warning light MERCEDES-BENZ C-Class COUPE 2017 CL205 Owner's Guide

ProblemPossible causes/consequences andMSolutions
The engine cannot be
started using the Smart-
Key.The on-board voltage is too low.
XSwitch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
XCheck the starter battery and charge it if necessary (Ypage 307).
or
XJump-start the vehicle (Ypage 308).
or
XConsult aqualified specialist workshop.
The engine cannot be
started using the Start/
Stop button. The Smart-
Key is in the vehicle.The vehicle is locked.
XUnlock the vehicle and try to start the vehicle again.
The SmartKey battery is discharged or nearly discharged.
XCheck the SmartKey battery (Ypage 77) and replace it if necessary
(Ypage 77).
If this does not work:
XStart your vehicle with the SmartKey in the ignition lock.
There is interference from apowerful source of radio waves.
XStart your vehicle with the SmartKey in the ignition lock.
You have lost aSmart-
Key.XHave the SmartKey deactivated at aqualified specialist workshop.
XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
You have lost the
mechanical key.XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
Doors
Important safety notes
GWARNING
If children are left unsupervised in the vehicle,
they could:
Ropen the doors, thus endangering other
people or road users.
Rget out and disrupt traffic.
Roperate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
Rrelease the parking brake.
Rshifting the automatic transmission out of
park position P
RStart the engine.
There is arisk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
80Doors
Opening and closing

Obstacle detection with reversing
feature for the trunk lid
Vehicles with trunk lid remoteclosing fea-
ture:
The trun klid is equipped with automatic obsta-
cle detection with areversingf eature. Ifasolid
objec tblocks or restrictst he trunklid when
automatically opening ,this procedure is stop-
ped. If asolid objec tblocks or restrictst he trunk
lid when automatically closing, the trun klid
opens again automatically. The automatic
obstacle detection with reversingf eature is only
an aid. It is not asubstitute for your attentive-
ness when opening and closing the trun klid.
GWARNING
The reversingf eature does not respond:
Rto soft,light and thin objects, e.g. fingers
Rover the last 1/3 in (8 mm) of the closing
movement
The reversingf eature cannot prevents ome-
one being trapped in these situation sinpar-
ticular. There is arisk of injury.
Make sure that no body parts are in close
proximit yduring the closing procedure.
If somebody becomes trapped:
Rpress the Fbutton on the SmartKey, or
Rpull or press the remoteo peratingswitch
on the driver's door or
Rpress the closing or lockin gbutton on the
trun klid
Vehicles with HANDS-FREE ACCESS:
It is also possible to stop the closing process by
performing akicking movementu nder the rear
bumper.
Opening and closing manually
Opening
XPress the Fbutton on the SmartKey.
The trun klid opens.
Closing
XPull the trun klid down using recess :and
push it closed.
XLock the vehicle if necessary with the &
button on the SmartKey or with KEYLESS-GO
(
Ypage 75).
Opening/closing automatically from
outside
Important safetyn otes
GWARNING
Parts of the body could become trapped dur-
ing automatic closing of the trun klid. More-
over, people, e.g. children,m ay be standing in
the closing area or may enter the closing area
during the closing process.T here isarisk of
injury.
Make sure that nobody is in the vicinity of the
closing area during the closing process.
Use one of the following option stostop the
closing process:
Rpress the Fbutton on the SmartKey.
Rpull or press the remoteo peratingswitch
on the driver's door.
Rpress the closing or lockin gbutton on the
trun klid.
GWARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Exhaust
gases can enter the vehicle interior if the
trun klid is open when the engin eisrunning,
Trunk83
Opening and closing
Z

trunk lidisopenw hent he engine is running,
especiall yifthe vehicl eisinmotion. There is a
ris kofp oisoning.
Alway sswitch off the engine befor eopening
the trunk lid. Never drive with the trunk lid
open.
GWARNING
The reversing featur edoesn ot respond:
Rto soft, light and thino bjects ,e.g.f ingers
Rove rthe last 1/3 in (8 mm) of the closing
movement
The reversing featur ecannot prevent some-
one being trapped in these situations in par-
ticular. There is ariskofi njury.
Make sure thatnob odyp arts ar einc lose
proximity durin gthe closing procedure.
If somebod ybecome strapped:
Rpress the Fbutton on the SmartKey, or
Rpull or press the remote operating switch
on the driver's door or
Rpress the closing or locking button on the
trunk lid
Vehicle swithH ANDS-FREE ACCESS:
It is also possibl etostop the closing proces sby
performing akicking movement under the rear
bumper.
!The trunk li dswing su pwar ds when opened.
Therefore ,makes uret hatt here is sufficient
clearance above the trunk lid.
The opening dimensions of the trunk li dcan be
found in the "Vehicl edata" section
(
Ypage 349).
Opening and closing
XTo open: pull remote operating switch :for
the trunk li duntilthe trunk li dopens.
XTo close: press and hol dremote operating
switch :for the trunk li duntilthe trunk li dis
completel yclosed.
When the vehicl eisstationary, yo ucan close the
trunk li dfromt he driver's seat. When the vehicle
is also unlocked, yo ucan also open the trunk lid
fromi nside.
Lockin gthe trunk separately
Youc an lock the trunk separately. If yo uthen
unlock the vehicl ecentrally ,the trunk remains
locked and cannot be opened.
Activating the functio ntolockt he trunk sepa-
rately:
XClose the trunk lid.
XOpen the glove box.
XPush the switch to position :.
If the vehicl eisunlocke dcentrally ,the trunk
remains locked.
iYo uc an also lock the glove box
(Ypage 269).
86Trunk
Opening and closing

Deactivating the functiontolockt he trunk sep-
arately:
XOpen the glove box.
XPush the switch to position ;.
If the vehicl eisunlocke dcentrally, the trunk
will also be unlocked.
Trunk emergenc yrelease
Youc an unlock the trunk li dfromt he insid ewith
the emergency release button.
XPress emergency release button :briefly.
The trunk li dunlocks and opens.
The trunk li dcan be unlocke dwitht he trunk lid
emergency release when the vehicl eisstation-
ar yorw hiledriving.
The trunk li demergency release does not unlock
the trunk li difthe battery is disconnecte dor
discharged.
Trunk li demergency release light:
Remergency release button :flashe sfor
30 minute safter the trunk li disopened
Remergency release button :flashe sfor
60 minute safter the trunk li disclosed
Side windows
Important safety notes
GWARNING
Whil eopening the side windows ,bod yp arts
could become trapped between the side win-
do wa nd the door frame as the side window
moves .There is ariskofi njury.
Make sure thatn obodytouche sthe side win-
do wd uringt he opening procedure. If some-
body become strapped ,release the switch or
pull the switch to close the side windo wagain .
GWARNING
Whil eclosing the side windows ,bod yp arts in
the closing area could become trapped .There
is ar iskofi njury.
When closing make sure thatnop arts of the
body ar einthe closing area .Ifsomebody
become strapped ,release the switch or press
the switch to open the side windo wagain .
Side windo wreversin gfeature
The side windows ar eequippe dwithana uto-
matic reversing feature. If asolid object blocks
or restricts asidew indo wf romt raveling
upwards durin gthe automatic closing process,
the side windo wopens agai nautomatically. Dur-
ing the manua lclosing process, the side window
onl yopens agai nautomaticall yafter the corre-
sponding switch is released. The automatic
reversing featur eisonlyana idand is no substi-
tute for your attentio nwhenc losing asidew in-
dow.
GWARNING
The reversing featur edoesn ot react:
Rto soft, light and thino bjects ,e.g.s mall fin-
gers
Rwhil eresetting
Thi sm eans thatt he reversing featur ecannot
prevent someone being trapped in these sit-
uations. There is ariskofi njury.
Make sure thatnob odyp arts ar einc lose
proximity durin gthe closing procedure. If
someone become strapped ,press the switch
to open the side windo wagain .
Opening and closin gthe side win-
dows
The switches for the side windows ar eloc ated
on the driver's door. There is also aswitch for
the front-passenge rsidew indo wont he front-
passenge rdoor.
Side windows87
Openin gand closing
Z

Problems with the side windows
GWARNING
If you close aside window again immediately after it has been blocked or reset, the side window
closes with increased or maximum force. The reversing feature is then not active. Parts of the
body could be trapped in the closing area in the process. This poses an increased risk of injury or
even fatal injury.
Make sure that no parts of the body are in the closing area. To stop the closing process, release
the switch or push the switch again to reopen the side window.
ProblemPossible causes/consequences and MSolutions
Aside window cannot be
closed because it is
blocked by objects, e.g.
leaves in the window
guide.XRemove the objects.
XClose the side window.
As ide window cannot be
closed and you cannot
see the cause.If as ide window is obstructed during closing and reopens again
slightly:
XImmediately after the window blocks, pull the correspondings witch
again until the side window has closed.
The side window is closed with increased force.
If as ide window is obstructed again during closing and reopens again
slightly:
XImmediately after the window blocks, pull the correspondings witch
again until the side window has closed.
The side windows are closed without the automatic reversing fea-
ture.
Sliding sunroof
Important safety notes
Your vehicle may be equippedw ithasliding
sunroof or apanorama roof with power tilt/slid-
ing panel. In this section ,the term "sliding sun-
roof" refers to both types of sliding sunroof.
GWARNING
While opening and closing the sliding sunroof, body parts in close proximity could become
trapped. There is arisk of injury.
Make sure that no body parts are in close
proximity during the opening and closing pro-
cedures.
If somebody becomes trapped:
Rrelease the switch immediately, or
Rduring automatic operation, push the
switch briefly in any direction
The opening or closing procedure will be stop-
ped.
GWARNING
If children operate the sliding sunroof they
could become trapped, particularly if they are left unsupervised. There is arisk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
90Sliding sunroof
Opening and closing

!Only open the sliding sunroof if it is free of
snow and ice. Otherwise, malfunctions may
occur.
Do not allow anything to protrude from the
sliding sunroof. Otherwise, the seals could be
damaged.
!The weather can change abruptly.Itc ould
start to rain or snow. Make sure that the slid-
ing sunroof is closed when you leave the vehi-
cle. The vehicle electronics can be damagedi f
water enters the vehicle interior.
Resonance noises can occur in addition to the
usuala irflow noises when the sliding sunroof is
open. They are caused by minor pressure fluc-
tuations in the vehicle interior. Change the posi-
tion of the sliding sunroof or open aside window
slightly to reduce or eliminate these noises.
Only for vehicles with panoramar oof with
power tilt/sliding panel:
GWARNING
At high speeds the raised sliding sunroof auto-
matically lowers slightly at the rear. This could
trap you or other persons. There is arisk of
injury. Make sure that nobody reaches into
the sweep of the sliding sunroof whilst the
vehicle is in motion.
If somebody becomes trapped, immediately
pull back the sliding sunroof switch. The slid-
ing sunroof lifts during opening.
Sliding sunroof reversing feature
Your vehicle may be equipped with asliding
sunroof or apanorama roof with power tilt/slid-
ing panel. In this section, the term "sliding sun-
roof" refers to both types of sliding sunroof.
The sliding sunroof is equipped with an auto-
matic reversing feature. If asolid object blocks
or restrictst he sliding sunroof during the closing
process, the sliding sunroof opens againa uto-
matically.T he automatic reversing feature is
only an aid and is no substitute for your attention
when closing the sliding roof.
GWARNING
The reversing feature does not react:
Rto soft, light and thin objects, e.g. small fin-
gers
Rover the last 1/6 in (4 mm) of the closing
movement
Rduring resetting
Rwhen closing the sliding sunroof againm an-
ually immediately after automatic reversing
This means that the reversing feature cannot
prevent someone being trapped in these sit-
uations. There is arisk of injury.
Make sure that no body parts are in close
proximity during the closing procedure.
If somebody becomes trapped:
Rrelease the switch immediately,o r
Rpress the switch in any direction during the
automatic closing process
The closing process is stopped.
Operating the sliding sunroof
Opening and closing
:To raise
;To open
=To close/lower
XTurn the SmartKey to position 1or 2in the
ignition lock.
XPress or pull the 3switch in the corre-
sponding direction.
If you press or pull the 3switch beyond the
point of resistance, automatic operation is star-
ted in the corresponding direction. You can stop
Sliding sunroof91
Opening and closing
Z

roof carrierapproved by Mercedes-Benz, the
sunroof wil llower slightly but remai nraised at
the rear.
Rain-closing feature
The raised panorama roof with powe rtilt/sliding
panel automatically lowers when driving if it
starts to rain. The sliding sunroof is lowered
depending on:
Rthe road speeda nd
Rthe intensity of the rain
You can manually cancel the automatic closing
procedure. Press or pul lthe 3 switch in any
direction.
To rais ethe panorama roof with powe rtilt/slid-
ing panel again, press the 3switch in direc-
tion :.
The rain-closing feature is then deactivated until
you:
Rpress or pul lthe 3 switch in any direction
or
Rturn the SmartKey to another position in the
ignitio nlock (Ypag e131)
Operating the rolle rsunblinds for the
panorama roof with powe rtilt/sliding
panel
Important safety notes
GWARNING
Parts of the body could become trapped
between the roller sunblind and frame or slid-
ing sunroof during automatic opening or clos-
ing. There is arisk of injury.
When opening or closing, make sure that no
body parts are in the swee pofthe roller sun-
blind.
If somebody becomes trapped:
Rrelease the switch immediately, or
Rduring automatic operation, push the
switch briefl yinany direction
The opening or closing procedure wil lbestop-
ped.
The roller sunblinds shield the vehicl einterior
from sunlight. The roller sunblinds can only be opened and closed when the panorama roof
with powe
rtilt/sliding panel is closed.
Roller sunblind reversing feature
The roller sunblinds are equipped with an auto-
matic reversing feature .Ifasolido bject blocks
or restricts aroller sunblind during the closing
process, the roller sunblind opens again auto-
matically. However, the automatic reversing
feature is only an aid and does not relieve you of
the responsibility of paying attention when clos-
ing the roller sunblinds.
GWARNING
The reversing feature does not react in par-
ticula rtosoft, light and thin objects, e.g. small
fingers. This means that the reversing feature
cannot prevent someone being trappe din
these situations. There is arisk of injury.
When closing the roller sunblind, make sure
that no body parts are in the swee parea.
If somebody becomes trapped:
Rrelease the switch immediately, or
Rpress the switch in any directio nduring the
automatic closing process
The closing process is stopped.
Opening and closing the rolle rsun-
blinds
:To open
;To open
=To close
You can only close the roller sunblinds when the
panorama roof with powe rtilt/sliding panel is
closed.
Sliding sunroof93
Opening and closing
Z

Problems with the sliding sunroof
Your vehicle may be equippedwithasliding sunroof or apanorama roof with power tilt/sliding
panel. In the following section ,the term "sliding sunroof" refers to both sliding sunroof variants.
GWARNING
If you close the sliding sunroof again immediately after it has been blocked or reset, the sliding
sunroof closes with increased or maximum force. The reversing feature is then not active. Parts
of the body could be trapped in the closing area in the process. This poses an increased risk of
injury or even fatal injury.
Make sure that no parts of the body are in the closing area.
If somebody becomes trapped:
Rrelease the switch immediately, or
Rpress the switch in any direction during the automatic closing process
The closing process is stopped.
!If the sliding sunroof still cannot be opened or closed as aresult of amalfunction ,contact a
qualified specialist workshop.
ProblemPossible causes/consequences and MSolutions
The sliding sunroof or
panorama roof with
power tilt/sliding panel
cannot be closed and
you cannot see the
cause.If the sliding sunroof or panorama roof with power tilt/sliding panel is
obstructed during closing and reopens again slightly:
XImmediately after it blocks, pull the3switch down again to the
point of resistance until the sliding sunroof or panorama roof with
power tilt/sliding panel is closed.
The sliding sunroof or panorama roof with power tilt/sliding panel is
closed with more force.
If the sliding sunroof or panorama roof with power tilt/sliding panel is
obstructed again during closing and reopens again slightly:
XImmediately after it blocks, pull the 3switch down again to the
point of resistance until the sliding sunroof or panorama roof with
power tilt/sliding panel is closed.
The sliding sunroof or panorama roof with power tilt/sliding panel is
closed without the automatic reversing feature.
Sliding sunroof95
Opening and closing
Z

Correct driver's seat position
GWARNING
You coul dlose control of your vehicle if you do
th ef ollowingw hile driving:
Radjust thedriver'ss eat,head restraint,
steering wheel or mirrors
Rfasten th eseat belt
Thereisar iskofana ccident.
Adjust th edriver'ss eat,head restraint ,steer-
ing wheel and mirror and fasten your seat belt before starting th eengine.
Observ ethe followingw hen adjusting steering
wheel :,seat belt ;and driver'ss eat=:
Ryou are as far away from th edriver'sa ir bag as
possible.
Ryou are sittin ginanormalupright position.
Ryour thighs are slightly supported by th eseat
cushion.
Ryour legs are no tentirely stretched and you
can depress th epedals properly.
Rtheb ack of your head is supported at eye level
by th ecente roft hehead restraint.
Ryou can hold th esteering wheel withy our
arm sslightly bent.
Ryou can mov eyour legs freely.
Ryou can see all th edisplays in th einstrument
cluste rclearly.
Ryou should have agood overview of traffic
conditions.
Rth es eat belt is pulled snugly against th ebody
and is routed across th ecente rofy our shoul-
der and across your hips in th epelvic area.
Further related subjects:
RElectrical seat adjustmen t(Ypage 98)
RAdjustingthe steering wheel mechanically
(Ypage 103) or electricall y(Ypage 104).
RFasteningthe seat belt correctly (Ypage 45).
RAdjustin gthe rear-view mirror and exterior
mirror s(Ypage 106).
RYou can store th eseat,s teering wheel,e xte-
rior mirror and head-up display settings with
th em emory function (
Ypage 109).
Seats
Important safety notes
GWARNING
Children coul dbecome trapped if they adjust
th es eats, particularly when unattended.
Thereisar iskofi njury.
When leaving th evehicle ,always tak ethe
SmartKey withy ou and lockthevehicle .Never
leave childre nunsupervised in th evehicle.
The seatsc an still be adjusted when there is no
SmartKey in th eignition lock.
GWARNING
When you adjust aseat,y ou or other vehicle
occupants coul dbecome trapped, e.g .onthe
seat guide rail. Thereisar iskofi njury.
Makes ure when adjusting aseat that no one
has any body part sinthesweep of th eseat.
Observ ethe safety note son"Air bags"
(
Ypage 46 )and "Children in th eVehicle"
(Ypage 57).
GWARNING
If th edriver'ss eat is no tengaged,itc ould
mov eunexpectedly while th evehicle is in
motion.T his couldcaus eyou to lose control of
th ev ehicle .Thereisar iskofana ccident.
Always mak esure that th edriver'ss eat is
engaged before starting th evehicle.
96Seats
Seats, steerin gwheel and mirrors

Problems with the seat heating or seat ventilation
ProblemPossible causes/consequences andMSolutions
The seat heating or seat
ventilation has switched
off prematurely or can-
not be switched on.The on-board voltage is too low because too many electrical consum-
ers are switched on.
XSwitch off electrical consumers that you do not need, such as the
rear window defroster or interior lighting.
Once the battery is sufficiently charged, the seat heating or seat
ventilation can be switched back on manually.
Steering wheel
Important safety notes
GWARNING
You could lose control of your vehicle if you do the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten the seat belt
There is arisk of an accident.
Adjust the driver's seat, head restraint,s teer-
ing wheel and mirror and fasten your seat belt before startin gthe engine.
GWARNING
Children could injure themselves if they
adjust the steering wheel. There is arisk of
injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The electrically adjustable steering wheel can
still be adjusted when there is no key in the igni-
tion lock.
Adjusting the steering wheel man-
ually
:Release lever
;Adjustst he steering wheel height
=Adjuststhe steering wheel position (fore-
and-aft adjustment)
XPush release lever :down completely.
The steering column is unlocked.
XAdjust the steering wheel to the desired posi-
tion.
XPush release lever :up completely.
The steering column is locked.
XCheck if the steering column is locked. When
doing so, try to push the steering wheel up or down or try to move it in the fore-and-aft
direction.
Steering wheel103
Seats, steering wheela nd mirrors
Z