2019 MERCEDES-BENZ GLS SUV 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 (/ page84).
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 (/ page192). Displ
aymessa ges and warning/indicator lamps 655

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.
Po ssible 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 con‐
tinue 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. 674
Displaymessa ges and warning/indicator lamps

Ad
justing the mid- range, treble and
bass
Burmes ter®
high-end 3D sur round
sound sy stem ....................................... 51 8
Ad justing the sound focus
Burmes ter®
sur round sound sy stem ....5 17
Ad justing the sound optimisation
Burmes ter®
high-end 3D sur round
sound sy stem ....................................... 51 8
Ad justing treble, mid- range and bass
settings
Burmes ter®
high-end 3D sur round
sound sy stem ....................................... 51 8
Burmes ter®
sur round sound sy stem ....5 16
ADS PLUS da mping sy stem
see AIRMATIC
Af ter-sales service centre
see ASS YST PLUS
Air conditioning menu Calling up ............................................ 17 7
Air conditioning sy stem
see Climate control Air distribution
........................................ .175
Setting (multimedia sy stem) ................1 78
Air freshener sy stem
see Frag rance sy stem
Air inlet see Air-water duct
Air pressure see Tyre pressure
Air suspension see AIRMATIC
Air vents ................................................... 186
Ad justing (front) .................................. 186
Ad justing (rear) .................................... 187
Glo vebox .............................................1 88
Air vents
see Air vents
Ai r-re circulation mode ............................ 17 9
Air-water duct .......................................... 538
Ke eping free ........................................5 38
Airbag ........................................................ .42
Ac tivation .............................................. 37
Fr ont airbag (driver, front passenger) ....42
Ins tallation locations ............................ .42Knee airbag ........................................... 42
Overview ............................................... 42
PA SSENGER AIR BAG indicator lamp .... .47
Pr otection ..............................................44
Re duced pr otection ...............................45
Side impact airbag ................................ 42
Wi ndow airbag ....................................... 42
Ai rflow ...................................................... 175
AIRM ATIC ................................................ .262
Setting ................................................. 265
Suspension .......................................... 262
Alarm see Panic alarm
Alarm sy stem
see ATA (anti-theft alarm sy stem)
All-wheel drive see 4MATIC
Alternative route
see Route
Ambiance light Setting (Rear Seat En tertainment
Sy stem) ............................................... 525 Index
681

Instrument clus
ter ................................. 10
Wa rning/indicator lamps .................... 665
Instrument lighting .................................324
Intelligent Light Sy stem .......................... 16 0
Ac tive headla mps ................................ 16 0
Ad aptive Highbeam Assist Plus .......... .162
Cornering light ..................................... 16 0
Fo g light (extended range) ................... 161
Mo torw ay mode ................................... 161
Overview ............................................. 16 0
Switching on/off .................................. 161
Interior lighting ........................................ 16 4
Ambiance light (Rear Seat Enter tain‐
ment Sy stem) ...................................... 525
Ambient lighting ..................................1 64
Re ading light ........................................ 16 4
Setting ................................................. 16 4
Switch-off del aytime ........................... 16 5
Interior pr otection
Fu nction ............................................... 11 0
Priming/deactivating ........................... 111
Intermediate destination Calculating a route with intermediate
destinations ........................................ 420 En
tering ............................................... 420
Modifying ............................................ 420
St arting an automatic filling station
sear ch................................................. 422
St arting the automatic service sta‐
tion sear ch.......................................... 422
In tern et
Calling up a web page .......................... 491
Closing the br ows er ............................. 494
Deleting a bookmark ........................... 493
Deleting his tory ................................... 493
Managing bookmar ks.......................... 493
In tern etconnection
Cancelling permission (mobile
phone) ................................................ .489
Communication module function ......... 487
Connection status .............................. .490
Displ aying the connection status ........ 490
Es tablishing .........................................4 89
Es tablishing automatically ...................4 89
Information .......................................... 487
Mobile phone de tails .......................... .489
Re strictions ......................................... 487
Setting access da ta(Blue tooth ®
) ........ 488
Setting automatic disconnection .........4 90Setting up (Blu
etoo th®
) .......................4 88
Setting up (Wi-Fi) ................................. 488
Internet radio
Calling up ............................................ 494
Calling up thest ation list (category
last selec ted) .......................................4 96
Deleting stations ................................ .496
Logging out ......................................... 496
Overview ............................................. 495
Re gis tering .......................................... 496
Saving stations .................................... 496
Selecting and connecting toast ation
............................................................ .496
Selecting stre am ................................ .496
Setting options ................................... .496
Te rm s of use ........................................4 96
Ionisation Activating/deactivating (multimedia
sy stem) ................................................ 180
iPhone ®
see Apple CarPlay™
see Mercedes-Benz Link
ISOFIX child seat securing sy stem
Fitting .................................................... 67 Index
699