MERCEDES-BENZ GLC SUV 2022 Owners Manual

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Display messages
Possible causes/consequences and P Solutions
5
Engine oil Quality loss Oil
change required *
Vehicles with a diesel engine: t he engine oil quality is no longer suPcient. 
Visit a q
ualiNed specialist workshop and have the oil changed.Warning and indicator lamps
Overview of indicator and warning lamps
Some systems will perform a self-test when the
v

ehicle is switched on. Some indicator and warn-
ing lamps may brieOy light up or Oash. This behav-
iour is non-critical. These indicator and warning
lamps indicate a malfunction only if they light up
or Oash aser the vehicle has been started or dur-
ing a journey. Driver's display Indicator and warning lamps
Occupant saf

ety
6 Restraint system ( pag
e 540)

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Engine

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Occupant safety
Warning/indicator lamp Possible causes/consequences and
P Solutions
6
R estraint system warning
lamp * The restraint system red warning lamp is lit while the vehicle is on.
The restraint system is malfunctioning ( pag e 44). &
WARNING Risk of injur
y due to malfunctions in the restraint system
Components in the restraint system may be activated unintentionally or not deploy as intended in an accident. 
Have the restraint system checked and repaired immediately at a q
ualiNed specialist workshop. Plug-in hybrid:
&
DANGER Risk of f
atal injuries due to restraint system malfunctions
Components in the restraint system may be activated unintentionally or not deploy as planned in an accident. In the
e
vent of an accident, the high-voltage on-board electrical system may not be deactivated as intended.
You may suMer an electric shock if you touch the damaged components of the high-voltage on-board electrical sys-
tem. 
Have the restraint system checked and repaired immediately at a q
ualiNed specialist workshop. 
Aser an accident, switc
h oM the vehicle immediately. 
Drive on carefully. 
Note the messages on the driver's display. 
Consult a q
ualiNed specialist workshop immediately.540
Display messages and warning/indicator lamps

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Warning/indicator lamp Possible causes/consequences and
P Solutions

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Warning/indicator lamp Possible causes/consequences and
P Solutions
Ú
Sy stem error warning lamp * The red system error warning lamp is lit while the vehicle is in a state of operational readiness

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Warning/indicator lamp Possible causes/consequences and
P Solutions
Initiate a new swivelling procedure and do not re-couple the trailer until the display message disappears. 
Note the messages on the driver's display.
If the trailer hitch is swivelling: 
Wait until the ball neck has reached the operational position.
Ù
P ower steering warning
lamp (yellow) * The yellow power steering warning lamp is lit while the vehicle is running.
The power assistance or the steering itself is malfunctioning. 
Note the messages on the driver's display.
Ù
P
ower steering warning
lamp (red) * The red power steering warning lamp is lit while the vehicle is running.
The power assistance or the steering itself is malfunctioning. &
WARNING Risk of accident if s
teering capability is impaired
If the steering does not function as intended, the vehicle's operating safety is jeopardised. 
Pull over and stop the vehicle safely as soon as possible, paying attention to road and tr
aPc conditions. Do not
continue driving under any circumstances. 
Consult a q
ualiNed specialist workshop. 
Note the messages on the driver's display. Display messages and warning/indicator lamps
543

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Warning/indicator lamp Possible causes/consequences and
P Solutions
Ù
R ear axle steering warning
lamp (yellow) * The yellow rear axle steering warning lamp is lit while the vehicle is running.
The rear axle steering is malfunctioning. 
Note the messages on the driver's display.
Ù
R
ear axle steering warning
lamp (red) * The red rear axle steering warning lamp is lit while the vehicle is running.
The rear axle steering is malfunctioning. &
WARNING Risk of accident if s
teering capability is impaired
If the steering does not function as intended, the vehicle's operating safety is jeopardised. 
Pull over and stop the vehicle safely as soon as possible, paying attention to road and tr
aPc conditions. Do not
continue driving under any circumstances. 
Consult a q
ualiNed specialist workshop. 
Note the messages on the driver's display. 544
Display messages and warning/indicator lamps

Page 548 of 601

Engine
Warning/indicator lamp Possible causes/consequences and
P Solutions

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Warning/indicator lamp Possible causes/consequences and
P Solutions
Note the messages on the driver's display.
If the coolant temperature display is at the lower end of the temperature scale: 
Consult a qualiNed specialist workshop.
If the coolant temperature display is at the upper end of the temperature scale: 
Exit the vehicle and keep a safe distance from it until the engine has cooled down. 
Check the coolant level (  pag
e 389). 
Make sure that the air supply to the radiator is not obstructed. 
Avoiding high loads on the engine, drive to the nearest q
ualiNed specialist workshop. In doing so, ensure that the
coolant temperature display remains below 120°C.

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Warning/indicator lamp Possible causes/consequences and
P Solutions

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