2018 MERCEDES-BENZ CLA COUPE heating

Grade (gasoline) ............................ 316
Importantsafety note s................. .316
Problem (malfunction) .................. .140
Refueling ........................................ 138
Tank content/reserve fuel ............. 316
Fue lfiller flap
Opening ......................................... 139
Fue llevel
Calling up the range (on-board
computer) ...................................... 180
Fue ltank
Capacity ........................................ 316
Problem (malfunction) ................... 140
Fuses
Allocation chart .............................2 85
Before changing .............................2 84
Fuse box in the engine compart-
ment .............................................. 285
Fuse box in the front-passenger
footwell .......................................... 285
Important safety notes .................. 284
G
Garage door opener
Clearing the memory ..................... 254
General notes ................................ 252
Important safety notes .................. 252
Opening/closing the garage door .. 254
Problems whe nprogramming ........2 54
Programming (button in the rear-
view mirror) ................................... 252
Synchronizing the rolling code ....... 253
Gasoline ............................................. 316
Gear indicator (on-board com-
puter, Mercedes-AMG vehicles) ....... 188
Genuine parts ...................................... 24
Glove box ...........................................2 38
Google™L ocal Search
see also Digita lOperator's Man-
ua l..................................................2 29
H
Handbrake
see Parking brake
HANDS-FRE EACCES S.......................... 79 Hazard warning lamps
Display message ............................ 216
Switching on/off ........................... 102
Head restraints
Adjusting ......................................... 92
Adjusting (manually). ....................... 93
Adjusting (rear) ................................ 93
Headlamps
Fogging up ..................................... 103
see Automatic headlamp mode
Heating
see Climate control
High beam flasher .............................1 01
High-beam headlamps
Adaptive Highbeam Assist ............. 102
Display message ............................ 203
Replacing bulbs .............................1 06
Switching on/off ........................... 101
Hill start assist .................................. 125
HOLD function
Activating ....................................... 157
Activatio nconditions ..................... 157
Deactivating ................................... 157
Display message ............................ 207
Function/notes .............................1 57
Home address
see also Digita lOperator's Man-
ua l..................................................2 29
Hood
Closing ...........................................2 58
Display message ............................ 215
Important safety notes .................. 257
Opening ......................................... 257
Horn ...................................................... 32
Hydroplaning ..................................... 148
I
Ignitionlock
see Key positions
Immobilizer .......................................... 68
Indicator lamp
Replacing bulbs (rear) .................... 106
Indicator lamps
see Warning and indicator lamps
Indicators
see Turn signals
Index11

Center console
Center console, upper section
FunctionPage
:Multimedia system (see the
separate operatinginstruc-
tions)
;c Seat heating94
Mercedes-AM Gvehicles:
AM Ga daptive sports uspen-
sion system (lefts ide)
159
Mercedes-AMGvehicles:
adjustst heexhaust flap of
th eA MG performance
exhaust system (right side)
127
=c Parking Assist
PARKTRONIC163
FunctionPage
?è ECO start/sto pfunc-
tion125
A£ Hazard warning lamps102
BPASSENGER AIRBA Gindica-
to rlamps41
CDYNAMIC SELECT button128
å Mercedes-AM Gvehi-
cles: ESP®66
Center console35
At ag lance

ProblemPossible causes/consequences andMSolutions
KEYLESS-GO is malfunctioning.
XLock/unlock the vehicle using the remote control function of the
SmartKey.
XHave the vehicle and SmartKey checked at aqualified specialist
workshop.
If the vehicle can also not be locked/unlocked using the remote con-
trol function:
XUnlock (Ypage 77) or lock (Ypage 77) the vehicle using the
mechanical key.
XHave the vehicle and SmartKey checked at aqualified specialist
workshop.
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 278).
or
XJump-start the vehicle (Ypage 278).
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 73) and replace it if necessary
(Ypage 73).
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.
SmartKey75
Opening and closing
Z

motion. This could cause you to lose control ofthe vehicle. There is arisk of an accident.
Always make sure that the driver'ss eat is
engagedb efore starting the vehicle.
GWARNING
You could lose control of you rvehicleify ou do
the following while driving:
Radjust the driver'ss eat, head restraint,
steering wheelorm irrors
Rfasten the seat belt
There is arisk of an accident.
Adjust the driver'ss eat, head restraint, steer-
ing wheela nd mirror and fasten you rseat belt
before starting the engine.
GWARNING
If you adjust the seat height carelessly,y ou or
other vehicleo ccupants could be trappeda nd
thereby injured. Children in particular could
accidentally press the electricals eat adjust-
ment buttons and become trapped. There is a
risk of injury.
Whilem oving the seats, make sure that your
hands or other body parts do not get under the
lever assembly of the seat adjustment sys-
tem.
!To avoidd amage to the seats and the seat
heating, observe the following information:
Rkeep liquid sfrom spilling on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
Rif the seat covers are damp or wet, do not
switch on the seat heating. The seat heat-
ing should als onot be used to dry the seats.
Rclean the seat covers as recommended;
see the "Interior care" section.
Rdo not transport heavy loads on the seats.
Do not place sharp objects on the seat
cushions, e.g. knives, nail sortools. The
seats should only be occupied by passen-
gers, if possible.
Rwhen the seat heating is in operation, do
not cover the seats with insulating materi-
als ,e.g. blankets, coats, bags ,seat covers,
child seats or booster seats.
!Make sure that there are no objects in the
footwellu nder or behind the seats when mov-
ing the seats back. There is arisk that the
seats and/or the objects could be damaged.
iFurther related subjects:
Rcargo compartment enlargement (folding
down the rear seats) (Ypage 240)
Adjusting the seats manually
Vehicles without the seating comfort
package
Seat fore-and-aft adjustment:
XLift handle :and slidet he seat forwards or
backwards.
XRelease lever :again.
Make sure that you hear the seat engage in
position.
Backrest angle:
XRelieve the pressure on the backrest.
XTurn handwheel =forwards or backwards.
Seat height:
XPullh andle ;upwards or push it down
repeatedly until the seat has reachedt he
desired height.
Seats91
Seats, steering wheel and mirrors
Z

:Raises thebackrest contour
;Soften sthe backrest contour
=Lowers th ebackrest contour
?Harden sthe backrest contour
AMG Performance seat
Vehicles with electricall yadjusta bles eats :
to adjust th econtou roftheseat and for
improve dlateral support ,you can individually
adjust th efront seats.
Adjusting th esideb olsters of th eseatc ush -
ion
XTo set th esideb olsters of th eseatc ush -
ion narrower: press button:.
XTo set th esideb olsters of th eseatc ush -
ion wider: press butto n;.
Adjusting th esideb olsters of th eseatb ack -
res t
XTo set th esideb olsters of th eseatb ack -
res tnarrower: press butto n=.
XTo set th esideb olsters of th eseatb ack -
res twider: press butto n?.
Switchin gthe seath eating on/off
Switchin gon/off
GWARNIN G
Repeatedly switching on th eseat heating can
caus ethe seat cushion and backrest pads to
become ver yhot.T he healt hofpersonswith
limite dtem perature sensitivit yoralimited
abilit ytor eac ttoh igh temperatures may be
affecte dortheym ay eve nsuffer burn-like
injuries. There is ariskofi njury.
Therefore ,donotswitch th eseat heating on
repeatedly.
The three red indicator lamp sinthebutto nindi-
cat ethe heating level you hav eselected.
The system automatically switches down from
level 3to level 2after approximately eigh t
minutes.
The system automatically switches down from
level 2to level 1after approximately te n
minutes.
The system automatically switches off approx -
imately 20 minute safter it is set to level 1.
XTurn theSma rtKey to position 1or2 in th e
ignition loc k(Ypage 122).
XTo switch on: press button: repeatedly
until th edesired heating level is set .
XTo switch off:press butto n: repeatedly
until all th eindicator lamp sgoout.
iIf th ebattery voltag eistoolow, th eseat
heating may switch off .
94Seats
Seats,steering wheel and mirrors

Problems with the seat heating
ProblemPossible causes/consequences andMSolutions
The seat heating has
switched off prematurely
or cannot 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 will switch
back on automatically.
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.
Adjusting the steering wheel
GWARNING
If the steering wheel is unlocked while the
vehicle is in motion, it could change position
unexpectedly. This could cause you to lose
control of the vehicle. There is arisk of an
accident.
Before startin goff, make sure the steering
wheel is locked. Never unlock the steering
wheel while the vehicle is in motion.
: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 wheel95
Seats, steering wheela nd mirrors
Z

Mirrors
Rear-view mirror
XAnti-glare mode:flick anti-glare lever :for-
wards or back.
Exterior mirrors
Adjusting the exterior mirrors
GWARNING
You coul dlose control of you rvehicleify ou do
the following while driving:
Radjust the driver's seat, headr estraint,
steering wheelorm irrors
Rfasten the seat belt
There is arisk of an accident.
Adjust the driver's seat, headr estraint, steer-
ing wheela nd mirror and fasten you rseat belt
before starting the engine.
GWARNING
The exterior mirror on the front-passenger
side reduces the size of the image. Visible
objects are actually closer than they appear.
This means that you coul dmisjudge the dis-
tance from road users traveling behind, e.g.
when changing lane .There is arisk of an acci-
dent.
For this reason, alway smake sure of the
actua ldistance from the road users traveling
behind by glancing over you rshoulder.
XTurn the SmartKey to position 1or2 in the
ignitio nlock (Ypage1 22).
XExterior mirror on the front-passenger side:
press button ;.
Exterior mirror on the driver's side:p ress but-
ton :.
The indicator lamp in the corresponding but-
ton lights up in red.
The indicator lamp goes out again after some
time. You can adjust the selected exterior
mirror using button =as long as the indicator
lamp is lit.
XPress button =up, down, or to the right or
left until you have adjusted the exterior mirror
to the correct position. You should have a
good overview of traffic conditions.
The convex exterior mirrors provide alarger field
of vision.
After the engine has been started, the exterior
mirrors are automatically heated at low outside
temperatures. Heating takes amaximu moften
minutes.
iYou can als oheatu pthe exterior mirrors
manually by switching on the rear window
defroster.
96Mirrors
Seats, steering wheel and mirrors

BSwitches cooling with airdehumidification on/off (Ypage 115)
CSwitches the rearw indow defrostero n/off (Ypage 118)
Notesonusing the air-conditioning
system
Air-conditioning system
Below,y oucan find anumber of notes and rec-
ommendations to helpy ouuset he air-condi-
tioning system optimally.
RSwitch on the air-conditioning system by turn- ing control knob Aclockwise to the desired
position (except position 0).
RSet the temperature to 72 ‡(22 †).
RRecommendation for avoiding misted
windows at lo wexteriort emperatures or
in rain: switch on the ¿cooling with dehu-
midification function (
Ypage 115).
Set ai rdistribution to ¯and if possible
switch off PandO (
Ypage 116).
Deactivate air-recirculation mode e
(
Ypage 119).
Set airflo wcontrol Atoas etting between 3
and 6(
Ypage 117).
RRecommendation for rapid coolin gor
heating of the vehicle interior: brieflyset
airflo wcontrol Atoas etting between 3and
6 (
Ypage 117).
RRecommendation for aconstan tvehicle
interior temperature: set airflowcontrol A
to as etting between 1and 3(
Ypage 117).
RRecommendation for air distributio nin
winter: select the Oand¯ settings
(
Ypage 116).
Recommendation for air distributio nin
summer: select the PorP and¯
settings (
Ypage 116).
ROnly us ethe "Windshieldd efrosting" function
brieflyu ntilthe windshield is clear again.
ROnly us eair-recirculation modeb riefly, e.g. if
there are unpleasant outsid eodors or when in
at unnel .The w
indow
scould otherwise fog up,
since no fresha iris drawn into the vehicl ein
air-recirculation mode.
RIf yo uchange the settings of the climate con-
trol system, the climate statu sdisplay
appears for approximately three seconds at
the botto mofthe screen in the multimedia
system display ;see separate operating
instructions .You will see the current settings
of the various climate control functions.
DYNAMI CSELECT button( except
Mercedes-AMG vehicles)
You can choose between various drive programs
with the DYNAMIC SELECT button
(
Ypage 128).
If yo uhaves elected drive program E:
Rwhen heating, the electrical heater booster is
deactivated and in the warming-up phase
heato utputi sreduced
Rthe rearw indow defrosterr unning time is
reduced
Depending on the configuration, climate set-
tings may also be influenced in the drive pro-
gram I.
If yo uhaves elected drive program Cor S,c li-
mate settings are not influenced.
EC Os tart/stop function
During automatic engine switch-off, the climate
control system only operate satareducedcapa-
city .Ify ourequire the ful lclimate control output,
yo uc an switch off the ECO start/stop function
by pressing the ECO button (
Ypage 127).
112Overviewofc limate control systems
Climate control