lights MERCEDES-BENZ GLC 2019 Owner's Manual

Exterior lighting
General notes
USA only: if you wish to drive during the daytimewithout lights, switch off theDaytime Run‐Daytime Run‐ning Lightsning Lightsfunction via the on-board com-puter (Ypage 222).
Setting the exterior lighting
Setting options
Exterior lighting can be set using the:
Rlight switch (Ypage 109)
Rcombination switch (Ypage 110)
Ron-board computer (Ypage 222)
Light switch
Operation
GcLeft-hand standing lamps
HdRight-hand standing lamps
I`Parking lamps, license plate andinstrument cluster lighting
JXAutomatic headlamp mode, controlledby the light sensor
KXLow-beam/high-beam headlamps

When the engine is running and the vehicle isstationary: if you move the selector lever from adriving position to], the daytime driving lightsand low-beam headlamps go out after threeminutes.
When the engine is running, the vehicle is sta-tionary and in bright ambient light: if you turn thelight switch to the`position, the daytimerunning lamps and parking lamps switch on.
If the engine is running and you turn the lightswitch to theXposition, the manual settingstake precedence over the daytime runninglamps.
Low-beam headlamps
GWARNING
When the light switch is set toX, the low-
beam headlamps may not be switched on
automatically if there is fog, snow or other
causes of poor visibility due to the weather
conditions such as spray. There is a risk of an
accident.
In such situations, turn the light switch to
X.
Even if the light sensor does not detect that it isdark, the parking lamps and low-beam head-lamps switch on when the ignition is switched onand the light switch is set to theXposition.This is a particularly useful function in the eventof rain and fog.
XTo switch on the low-beam headlamps:turn the SmartKey to positionHin the igni-tion lock or start the engine.
XTurn the light switch to theXposition.The greenXindicator lamp in the instru-ment cluster lights up.
Rear fog lamp
The rear fog lamp improves visibility of yourvehicle for the traffic behind in the event of thickfog. You must observe the legal requirementsfor the country in which you are currently drivingwhen operating the rear fog lamp.
XTo switch on the rear fog lamp:turn theSmartKey in the ignition lock to positionHorstart the engine.
XTurn the light switch to theXorXposition.
XPress the^button.The yellow^indicator lamp on the instru-ment cluster lights up.
Parking lamps
!If the battery charge is very low, the parkinglamps or standing lamps are automaticallyswitched off to enable the next engine start.Always park your vehicle safely and in a well litarea, in accordance with the relevant legalstipulations. Avoid using the`parkinglamps over a period of several hours. If pos-sible, switch on the right-handdor left-handcstanding lamps.
XTo switch on the parking lamps:turn thelight switch to the`position.The green`indicator lamp on the instru-ment cluster lights up.
Standing lamps
Switching on the standing lamps ensures thecorresponding side of the vehicle is illuminated.
XTo switch on the parking lamp:turn theSmartKey to positionZin the ignition lock orremove the SmartKey.
XTurn the light switch to thec(left-handside of the vehicle) ord(right-hand side ofthe vehicle) position.
Combination switch
CHigh-beam headlamps
DTurn signal, right
110Exterior lighting
Lights and windshield wipers

The system automatically adapts the low-beamheadlamp range depending on the distance tothe other vehicle. Once the system no longerdetects any other vehicles, it reactivates thehigh-beam headlamps.
The system's optical sensor is located behindthe windshield near the overhead control panel.
Important safety notes
GWARNING
Adaptive Highbeam Assist does not recognize
road users:
Rwho have no lights, e.g. pedestrians
Rwho have poor lighting, e.g. cyclists
Rwhose lighting is blocked, e.g. by a barrier
On very rare occasions, Adaptive Highbeam
Assist may fail to recognize other road users
that have lights, or may recognize them too
late. In this, or in similar situations, the auto-
matic high-beam headlamps will not be deac-
tivated or will be activated regardless. There is
a risk of an accident.
Always carefully observe the traffic conditions
and switch off the high-beam headlamps in
good time.
Adaptive Highbeam Assist cannot take intoaccount road, weather or traffic conditions.Adaptive Highbeam Assist is only an aid. You areresponsible for adjusting the vehicle's lightingto the prevailing light, visibility and traffic con-ditions.
In particular, the detection of obstacles can beimpaired if:
Rthere is poor visibility, e.g. due to fog, heavyrain or snow
Rthere is dirt on the sensors or anything elsecovering the sensors
Switching Adaptive Highbeam Assist
on/off
XTo switch on:turn the light switch to theXposition.
XPress the combination switch forwardsbeyond the pressure point (Ypage 110).The

Protect bulbs from moisture during operation.Do not allow bulbs to come into contact withliquids.
Replace only the bulbs listed (Ypage 114).Have the bulbs that you cannot change yourselfreplaced at a qualified specialist workshop.
If you require assistance replacing bulbs, con-sult a qualified specialist workshop.
If the new bulb still does not light up, consult aqualified specialist workshop.
Headlamps and lights are an important aspect ofvehicle safety. You must therefore make surethat these function correctly at all times. Havethe headlamp setting checked regularly.
Vehicles with LED headlamps:the front andrear light clusters of your vehicle are equippedwith LED bulbs. Do not replace the bulbs your-self. Contact a qualified specialist workshopwhich has the necessary specialist knowledgeand tools to carry out the work required.
Overview of bulb types
You can replace the following bulbs. The bulbtype can be found in the legend.
Halogen headlamps
CLow-beam headlamp: H7 55 W
DHigh-beam headlamp: H7 55 W

XInsert new bulb into bulb holderD.
XInsert bulb holderDinto groove with lug attop.
XPush bulb holderDdown until it engagesaudibly.
XPress on housing coverCand turn it clock-wise.
Turn signals
XRemove the cover in the front wheel housing(Ypage 115).
XTurn bulb holderCcounter-clockwise usingthe grip under the headlamp casing andremove it downwards with bulb.
XTurn defective bulb counter-clockwise andremove it from bulb holderC.
XInsert new bulb into bulb holderC.
XInsert bulb holderC, turn it clockwise andlock.
XReplace the cover in the front wheel housing(Ypage 115).
Removing and installing the cover in the
front wheel housing
You must remove the cover of the front wheelhousing before you can change the front turnsignal lamp.
XTo remove:switch off the lights.
XTurn the front wheels inwards.
XTurn rotary knobC180° outwards until itstops using a suitable object.CoverDis released.
XFold coverDup.
XTo install:insert coverDinto the left, rightand two lower catches.
XTurn rotary knobC180° inwards until itstops using a suitable object.CoverDis locked.
Windshield wipers
Switching the windshield wipers
on/off
!Do not operate the windshield wipers whenthe windshield is dry, as this could damagethe wiper blades. Moreover, dust that has col-lected on the windshield can scratch the glassif wiping takes place when the windshield isdry.
If it is necessary to switch on the windshieldwipers in dry weather conditions, always usewasher fluid when operating the windshieldwipers.
!If the windshield wipers leave smears on thewindshield after the vehicle has been washedin an automatic car wash, wax or other resi-dues may be the reason for this. Clean thewindshield using washer fluid after washingthe vehicle in an automatic car wash.
!Intermittent wiping with rain sensor: due tooptical influences and the windshield becom-ing dirty in dry weather conditions, the wind-shield wipers may be activated inadvertently.This could then damage the windshield wiperblades or scratch the windshield.
Windshield wipers115
Lights and windshield wipers
Z

Vehicles with 3-zone automatic climate control:use the "Residual heat" function if you want toheat or ventilate the vehicle interior when theignition is switched off. The residual heat func-tion can only be activated or deactivated withthe ignition switched off. The residual heat func-tion is deactivated when the ignition is switchedon.
DYNAMIC SELECT switch (except
Mercedes-AMG GLC 63 4MATIC/
GLC 63 S 4MATIC)
You can choose between various drive programswith the DYNAMIC SELECT switch(Ypage 139).
If you have selected drive programE:
Rwhen heating, the electrical heater booster isdeactivated and heat output is reduced as aresult
Rthe rear window defroster running time isreduced
If you have selected drive programC,SorS+,the current climate settings are maintained.
ECO start/stop function
During automatic engine switch-off, the climatecontrol system only operates at a reduced capa-city. If you require the full climate control output,you can switch off the ECO start/stop functionby pressing the ECO button (Ypage 137).
Operating the climate control sys-
tems
Activating/deactivating climate con-
trol
General notes
When the climate control is switched off, the airsupply and air circulation are also switched off.The windows could fog up. Therefore, switch offclimate control only briefly
Switch on climate control primarily using theXrocker switch (Ypage 123).
Activating/deactivating
XTurn the SmartKey to positionHin the igni-tion lock (Ypage 131).
XTo switch on:set the airflow to level1orhigher using theHrocker switch.
XTo switch off:set the airflow to level0usingtheHrocker switch.
i3-zone automatic climate control: when cli-mate control is switched off, "OFF" appears inthe rear-compartment display.
Switching cooling with air dehumidification on/off
General notes
If you deactivate the "Cooling with air-dehumidification" function, the air inside the vehicle will notbe cooled. The air inside the vehicle will also not be dehumidified. The windows can fog up morequickly. Therefore, only deactivate the "Cooling with air-dehumidification" function briefly.
The "Cooling with air dehumidification" function is only available when the engine is running. The airinside the vehicle is cooled and dehumidified according to the temperature selected.
Condensation may drip from the underside of the vehicle when it is in cooling mode. This is normaland not a sign that there is a malfunction.
Activating/deactivating
XPress theZrocker switch up or down.The indicator lamp above the rocker switch lights up or goes out.
122Operating the climate control systems
Climate control

Problems with the "Cooling with air dehumidification" function
ProblemPossible causes/consequences andPPSolutions
The indicator lamp abovetheZrocker switchremains off. The coolingwith air dehumidificationfunction cannot be acti-vated via the multimediasystem any longer(Ypage 273).
Cooling with air dehumidification has been deactivated due to a mal-function.
XVisit a qualified specialist workshop.
Setting climate control to automatic
General notes
In automatic mode, the set temperature is main-tained automatically at a constant level. Thesystem automatically regulates the temperatureof the dispensed air, the airflow and the air dis-tribution.
During automatic controlling, the "Cooling withair dehumidification" function is activated.
Automatic control
XTurn the SmartKey to positionHin the igni-tion lock (Ypage 131).
XTo activate:press theXrocker switch upor down.The indicator lamp above theXrockerswitch lights up.
XSet the desired temperature using the

3-zone automatic climate control
XActivate or deactivate the "Synchronization"function using the multimedia system(Ypage 273).
The synchronization function is deactivated:
Rif the settings for the front-passenger side arechanged
Rthe settings for the rear compartment arechanged
Defrosting the windshield
General notes
You can use this function to defrost the wind-shield or to clear a fogged up windshield or frontside windows on the inside.
Switch off the "Windshield defrosting" functionas soon as the windshield is clear again.
Switching the "Windshield defrosting"
function on or off
XTurn the SmartKey to positionHin the igni-tion lock (Ypage 131).
XTo switch on:press rocker switchdonthe front control unit up or down.The indicator lamp above thedrockerswitch lights up. The current climate controlsettings are deactivated.
The climate control system switches to thefollowing functions:
Rhigh airflow
Rhigh temperature
Rair distribution to the windshield and frontside windows
Rair-recirculation mode off
iIf necessary, the "Cooling with air dehumid-ification" function is activated. In this case,the indicator lamp above theZrockerswitch remains switched off.
XTo switch off:press rocker switchdup ordown.The indicator lamp above thedrockerswitch goes out. The previously selected set-
tings are restored. Air-recirculation moderemains deactivated.
Removing condensation from the win-
dows
Windows fogged up on the inside
XActivate the "Cooling with air dehumidifica-tion" function with theZrocker switch.
XSwitch on automatic mode using theXrocker switch.
XIf the windows continue to fog up, activate the"Windshield defrosting" function using thedrocker switch.
iYou should only select this setting until thewindshield is clear again.
Windows fogged up on the outside
XActivate the windshield wipers.
XSwitch on automatic mode using theXrocker switch.
iIf you clean the windows regularly, they donot fog up so quickly.
Rear window defroster
General notes
The rear window defroster has a high currentdraw. You should therefore switch it off as soonas the rear window is clear. Otherwise, the rearwindow defroster switches off automaticallyafter several minutes.
If the battery voltage is too low, the rear windowdefroster may switch off.
Activating/deactivating
XTurn the SmartKey to positionHin the igni-tion lock (Ypage 131).
XPress rocker switchlup or down.The indicator lamp above rocker switchllights up or goes out.
Operating the climate control systems125
Climate control

Problems with the rear window defroster
ProblemPossible causes/consequences andPPSolutions
The rear windowdefroster has deactiva-ted prematurely or can-not be activated.
The battery has not been sufficiently charged.
XSwitch off any consumers that are not required, e.g. reading lamps,interior lighting or the seat heating.When the battery is sufficiently charged, the rear window defrostercan be activated again.
Switching air-recirculation mode
on/off
General notes
You can also temporarily deactivate the flow offresh air manually if unpleasant odors are enter-ing the vehicle from outside. The air alreadyinside the vehicle will then be recirculated.
If you switch on air-recirculation mode, the win-dows can fog up more quickly, in particular atlow temperatures. Only use air-recirculationmode briefly to prevent the windows from fog-ging up.
Activating/deactivating
XTurn the SmartKey to positionHin the igni-tion lock (Ypage 131).
XTo activate:press therrocker switch upor down.The indicator lamp above therrockerswitch lights up.
Air-recirculation mode switches on automati-cally:
Rat high outside temperatures
Rat high levels of pollution (3-zone automaticclimate control only)
Rin a tunnel (vehicles with a navigation systemonly)
The indicator lamp above therrockerswitch is not lit when automatic air-recirculationmode is activated. Outside air is added afterabout 30 minutes.
XTo deactivate:press therrocker switchup or down.The indicator lamp above therrockerswitch goes out.
Air-recirculation mode deactivates automati-cally:
Rafter approximately five minutes at outsidetemperatures below approximately 41 ‡(5 †)
Rafter approximately five minutes if coolingwith air dehumidification is deactivated
Rafter approximately 30 minutes at outsidetemperatures above approximately 41 ‡(5 †) if the "Cooling with dehumidification"function is activated
Switching the residual heat on or off
General notes
The residual heat function is only available with3-zone automatic climate control.
Once the engine is switched off, it is possible tomake use of the residual heat of the engine tocontinue heating or ventilating the front com-partment of the vehicle for approximately30 minutes. The heating or ventilation timedepends on the interior temperature that hasbeen set.
Activating/deactivating
XTurn the SmartKey to position

Deactivating or activating the ECO
start/stop function
Mercedes-AMG vehicles
XTo deactivate:press ECO buttonC.Indicator lampDgoes out.
XTo activate:press ECO buttonC.Indicator lampDlights up.
If indicator lampDis off, the ECO start/stopfunction has been switched off manually or asthe result of a malfunction. The engine will thennot be switched off automatically when the vehi-cle stops.
The ECO start/stop function is deactivated, if:
RMercedes-AMG GLC 43 4MATIC:you switchto drive programS+(Ypage 139)
RMercedes-AMG GLC 63 4MATIC+/GLC 63S 4MATIC+:you switch to drive programRACE(S‑MODEL),S+orS(Ypage 139)
Ryou permanently activate manual gearshifting(Ypage 147)
If you have permanently activated manual gear-shifting and then press ECO buttonC, the ECOstart/stop function is switched on.
All other models
XTo deactivate:press ECO buttonC.Indicator lampDgoes out.
XTo activate:press ECO buttonC.Indicator lampDlights up.
If indicator lampDis off, the ECO start/stopfunction has been deactivated manually or asthe result of a malfunction. The engine will thennot be switched off automatically when the vehi-cle stops.
Selecting drive programS+deactivates the ECOstart/stop function. If you press ECO buttonC,the ECO start/stop function is activated.
AMG Performance adjustable exhaust
system (Mercedes-AMG vehicles)
The volume of the AMG Performance adjustableexhaust system changes depending on the posi-tion of the switchable exhaust flap. The exhaustflap is adjusted automatically according to theselected drive program (Ypage 139).
You can also adjust the position of the exhaustflap and therefore the volume of the exhaustsystem manually.
The automatic adjustment of the exhaust flap isalways active when you change drive program,regardless of the manual setting.
Each time you start the engine with the Smart-Key or the Start/Stop button, the quietest set-ting is activated.
Setting the volume:
XPress buttonC.If you select the loudest setting, indicatorlamp lights upD.
Mercedes-AMG GLC 63 4MATIC+/GLC 63 S4MATIC+:you can preset the volume of theexhaust system for drive programI(Individual).Information on DYNAMIC SELECT and on con-
Driving137
Driving and pa rking
Z