2019 MERCEDES-BENZ GLC COUPE service indicator

Display messages
Possible causes/consequences and M
MSolutions #
Order a new digital vehicle keyst icke r from a Mercedes-Benz Service Centre or at http://www.mercedes-
benz.com/connect.
Á
Replace key *T
hekey needs tobe replaced. #
Consult a qualified specialist workshop.
Á Change key batteries *T
hekey bat tery is dischar ged. #
Replace the battery (/ page76).
Á
Key not detected (white
display message) *T
hekey is cur rently und etected. #
Change the location of theke y in theve hicle. #
Ifth eke y is still not recognised, place it in the slot forst arting with theke y (/ page168). 580
Displaymessa ges and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
? Coolant warning lamp The
red coolant warning lamp is lit while the engine is running.
*Possible causes: R The temp erature sensor is malfunctioning
R The coolant le vel is too low
R The air supply tothera diator is obstructed
R The radiator fan is faulty
If th ere is an additional warning tone, the coolant temp erature has exceeded 120 °C. &
WARNING Danger of bu rns when opening the bonn et
If yo u open the engine bonn etwhen the engine has overheated or during a fire inthe engine compartment, you
could come into contact wi thhot gases or other escaping operating fluids. #
Before opening the bonn et, allow the engine tocool down. #
Intheeve nt of a fire inthe engine compartment, keep the engine bonn etclosed and call thefire service. #
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. Do not
continue driving under any circums tances. #
Obser vethe messages on the multifunction displa y.
If th e coolant temp erature display is at the lo wer end of thete mp erature scale: #
Consult a qualified specialist workshop. 602
Display messages and warning/indicator lamps

Ad
justing treble, mid- range and bass
settings
Adva nced sound sy stem ......................4 59
Burmes ter®
sur round sound sy stem ... 457
ADS PLUS damping sy stem
see AIR BODY CONTROL
Ad vanced sound sy stem
Ac tivating/deactivating au tomatic
vo lume adjustment .............................. 459
Ad justing the balance/fader ............... 459
Ad justing treble, mid-range and bass
settings ............................................... 459
Calling up the sound menu .................. 458
Information .......................................... 458
Af ter-sales service centre
see ASS YST PLUS
AIR BODY CONT ROL................................ 230
Setting ................................................ .232
Suspension .......................................... 230
Air conditioning menu Calling up ............................................ 15 5
Air conditioning sy stem
see Climate control Air distribution
Setting ................................................ .153
Setting (multimedia sy stem) ................1 56
Air freshener sy stem
see Fragrance sy stem
Air inlet see Air-water duct
Air pressure see Tyre pressure
Air suspension see AIR BODY CONTROL
Air vents ................................................... 16 3
Ad justing (front) .................................. 16 3
Ad justing (rear) .................................... 16 4
Air vents
see Air vents
Ai r-re circulation mode ............................ 157
Air-water duct .......................................... 468
Ke eping free ........................................4 68
Airbag ........................................................ .40
Ac tivation .............................................. 34
Fr ont airbag (driver, front passenger) ....40
Ins tallation locations ............................ .40Knee airbag ........................................... 40
Overview ............................................... 40
PA SSENGER AIR BAG indicator lamp .... .45
Pr otection ..............................................41
Re duced pr otection ...............................42
Side impact airbag ................................ 40
Wi ndow airbag ....................................... 40
Ai rflow
Setting ................................................ .153
Alarm sy stem
see ATA (anti-theft alarm sy stem)
All-wheel drive see 4MATIC
Alternative route
see Route
Ambiance light Setting (multimedia sy stem) ................1 46
Android Auto ............................................ 41 8
Connecting a mobile phone ................ .419
Control using the application buttons
.............................................................4 20
Ending ................................................. 420
Information .......................................... 419
Overview ..............................................4 18 Index
609