2020 MERCEDES-BENZ GLS SUV Owners Manual

Display messages
Possible causes/consequences and M
MSolutions
Ù Steering malfunction
Increased physical effort
See Owner's Manual *T
he po werst eering assis tance is malfunctioning. &
WARNING Risk of an accident due toaltered steering characteristics
If th e po wer assi stance of thesteering fails partially or comple tely, you will need touse more forc eto steer. #
If safe steering is possible, drive on carefully. #
Visit or consult a qualified specialist workshop immediatel y.Ù
Steering malfunction Stop
immediately See Owner's
Manual *T
hesteering is malfunctioning. Steering capability is significant lyimpaired. &
WARNING Risk of accident if steering capability is impaired
If th esteering does not function as intended, theve hicle's operating saf ety is jeopardised. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions.
Do not continue driving under any circums tances. #
Consult a qualified specialist workshop. C
*A
t least one door is open. #
Close all doors. 446
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
? *T
he bonnet is open. &
WARNING Risk of accident due todriving with the bonn etunlo cked
The bonn etmay open and block your vie w. #
Neverre lease the bonn etwhen driving. #
Before every trip, ensure that the engine bonn etis loc ked. #
Stop theve hicle immediately, paying attention toroad and traf fic conditions. #
Close the bonn et.
A *T
hetailgate is open. &
DANG ER Risk of exhaust gas poisoning
Combustion engines emit poisonous exhaust gases such as carbon monoxide. Exhaust gases can enter the
ve hicle interior if theta ilgate is open when the engine is running, especially if theve hicle is in motion. #
Alw ays switch off the engine before opening theta ilgate. #
Never drive with theta ilgate open. #
Close theta ilgate.
LOW RANGE only when
vehicle stationary *O
ne or more shi fting conditions ha venot been met. #
Stop theve hicle. Display messages and
warning/indicator lamps 447

Display messages
Possible causes/consequences and M
MSolutions #
Enga geneutral i. #
Repeat thege ar change.
LOW RANGE Shift to posi-
tion N briefly *O
ne or more shi fting conditions ha venot been met. #
Engage neutral i. #
Repeat thege ar change.
LOW RANGE Not in drive
program "Sport" *Y
ou will not be able toselect theLO W RANGE off-road gear if the drive program CorB is switched on.
The drive prog ram therefore automatically switches toA . #
Select theLO W RANGE off-road gear (/ page210).
LOW RANG E Malfunction
To park, apply parking
brake *T
he transfer case is malfunctioning. #
Do not shift the transfer case! #
Use the electric parking brake tosecure theve hicle against rolling away. #
Consult a qualified specialist workshop.
LOW RANGE Shifting can-
celled Please reactivate *T
he transfer case did not per form thege ar change. #
Repeat thege ar change. #
Ensure that all shifting conditions are met (/ page210).
LOW RANG E Malfunction *T
he transfer case is malfunctioning. #
Do not shift the transfer case! 448
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions #
Use the electric parking brake tosecure theve hicle against rolling away. #
Consult a qualified specialist workshop.
LOW RANGE Stop Apply
parking brake *T
he transfer case is malfunctioning. #
Stop theve hicle in accordance with the tra ffic conditions. #
Apply the electric parking brake. #
Where necessar y,also secure theve hicle against rolling away. #
Engage pa rkposition j.
LOW RANGE Max. speed
10 km/h *T
he maximum speed of 10km/h forth ege ar change has been exceeded. #
Drive more slowly. #
Repeat thege ar change.
LOW RANGE Max. speed
40 km/h *T
he maximum speed of 40 km/h forth ege ar change has been exceeded. #
Drive more slowl y. #
Todeactivate thege ar change, press theLOW RANGE button again. #
Repeat thege ar change.
Gearbox protection Limit
30 km/h Switch off LOW
RANGE *T
he oil temp erature in the transfer case is too high. #
Inthe on-ro ad position, shift toHIGH RANGE. Display messages and
warning/indicator lamps 449

Display messages
Possible causes/consequences and M
MSolutions
Anti-theft alarm system
Malfunction *T
he anti-theft alarm sy stem is malfunctioning. #
Consult a qualified specialist workshop.
¥ Top up washer fluid *T
hewasher fluid le vel in thewa sher fluid reser voir has dropped below the minimum. #
Top up thewa sher fluid (/ page 363). Engine
Display messages
Possible causes/consequences and M MSolutions
To switch off the engine,
press the Start/Stop but-
ton for at least 3 seconds
or 3 times. *Y
ou ha vepressed thest art/ stop button while theve hicle is in motion. #
Information about switching off the engine while driving (/ page188).
+
Top up coolant See Own-
er’s Manual *T
he coolant le vel is too lo w.
* NO
TEEngine dama gedue toinsuf ficient coolant #
Avoid long journe yswith insuf ficient coolant. 450
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions #
Add coolant (/ page 362). #
Have the engine cooling sy stem checked at a qualified specialist workshop.
ÿ
Coolant Stop vehicle
Switch engine off *T
he coolant is too hot. #
Stop theve hicle immediately in accordance with the traf fic conditions and switch off the engine. &
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. #
Wait until the engine has cooled down. #
Make sure that the air supply tothera diator is not obstructed. #
Avoiding high loads on the engine, drive tothe nearest qualified specialist workshop. In doing so, ensure that
th e coolant temp erature display remains below 120°C.
ÿ *T
hefan mo tor is defective. #
Avoiding high loads on the engine, drive tothe nearest qualified specialist workshop. In doing so, ensure that
th e coolant temp erature display remains below 120 °C. Displ
aymessa ges and warning/indicator lamps 451

Display messages
Possible causes/consequences and M
MSolutions
8 Reserve fuel level *T
he fuel supply has dropped into there ser verange. #
Refuel.
!
Clean the fuel filter *
Ve hicles with diesel engines: the fuel filter is dirty or thewate r inthe fuel filter needs tobe drained. #
Consult a qualified specialist workshop.
¸ Replace air cleaner *
Ve hicles with diesel engines: the engine air filter is dirty and must be replaced. #
Consult a qualified specialist workshop.
Drive system Malfunction
Visit workshop *T
he drive sy stem is malfunctioning. #
Consult a qualified specialist workshop.
Drive system Malfunction
Stop Switch engine off *T
he drive sy stem is malfunctioning. #
Stop theve hicle immediately in accordance with the traf fic conditions and switch off the engine. #
Consult a qualified specialist workshop. 452
Display messages and warning/indicator lamps

Tr
ansmission Display messages
Possible causes/consequences and M
MSolutions
Only select Park (P) when
vehicle is stationary *
It is possible toselect the park position jonly if theve hicle is stationar y. #
Tostop, depress the brake pedal. #
Shift the transmission topark position jwhen theve hicle is stationar y.
Apply brake to deselect
Park (P) position *
Yo u ha veattem ptedto shift the transmission out of park position jand into ano ther transmission position. #
Depress the brake pedal. #
Select transmission position h,kor neutral i.
To shift out of P or N,
depress brake and start
engine *
Yo u ha veattem ptedto shift the transmission out of park position jor neutral iand into ano ther transmission
position. #
Depress the brake pedal. #
Start the engine. #
Change the transmission position.
Apply brake to select D or R *
You ha veattem ptedto select transmission position hork. #
Depress the brake pedal. #
Select transmission position hork.
Apply brake to select R *
You ha veattem ptedto select transmission position k. #
Depress the brake pedal. #
Select transmission position k. Display messages and
warning/indicator lamps 453