2015 MERCEDES-BENZ GLK-CLASS SUV instrument cluster

Display messagesPossible causes/consequences and M Solutions
6
Front Left MalfuncZ
tion Service
Required or Front
Right Malfunction
Service Required
SRS has malfunctioned at the front on the left or right. The 6
warning lamp also lights up in the instrument cluster.
GWARNING
The air bags or Emergency Tensioning Devices may either be trig-
gered unintentionally or, in the event of an accident, may not be
triggered.
There is an increased risk of injury.
X Visit a qualified specialist workshop.
6
Rear Left MalfuncZ
tion Service
Required or Rear
Right Malfunction
Service Required
SRS has malfunctioned at the rear on the left or right. The 6
warning lamp also lights up in the instrument cluster.
GWARNING
The air bags or Emergency Tensioning Devices may either be trig-
gered unintentionally or, in the event of an accident, may not be
triggered.
There is an increased risk of injury.
X Visit a qualified specialist workshop.
6
Rear Center MalZ
function Service
Required
SRS has malfunctioned at the rear center. The 6 warning lamp
also lights up in the instrument cluster.
GWARNING
The air bags or Emergency Tensioning Devices may either be trig-
gered unintentionally or, in the event of an accident, may not be
triggered.
There is an increased risk of injury.
X Visit a qualified specialist workshop.
6
Left Side Curtain
Airbag Malfunction
Service
Required or Right
Side Curtain AirZ
bag Malfunction
Service Required
There is a malfunction in the left-hand or right-hand window cur-
tain air bag.
The 6 warning lamp also lights up in the instrument cluster.
GWARNING
The left or right window curtain air bag may either be triggered
unintentionally or, in the event of an accident, may not be tri g-
gered.
There is an increased risk of injury.
X Visit a qualified specialist workshop.
240Display messages
On-board computer and displays

Warning and indicator lamps in the instrument cluster
General notes
Some systems carry out a self-diagnosis when the ignition is switched on. Therefore, some
indicator and warning lamps may light up or flash temporarily. Thi s behavior is non-critical.
These indicator and warning lamps only indicate a malfunction i f they light up or flash after
starting the engine or whilst driving.
Seat belts
ProblemPossible causes/consequences and M Solutions
ü
After starting the
engine, the red seat
belt warning lamp lights
up for 6 seconds.The seat belt warning lamp reminds the driver and front passenger
to fasten their seat belts.
X Fasten your seat belt ( Y page 58).
ü
After starting the
engine, the red seat
belt warning lamp lights
up. In addition, a warn-
ing tone sounds for up
to 6 seconds.The driver's seat belt is not fastened.
X Fasten your seat belt ( Y page 58).
The warning tone ceases.
ü
The red seat belt warn-
ing lamp lights up after
the engine starts, as
soon as the driver's or
the front-passenger
door is closed.The driver or front passenger has not fastened their seat belt.
X Fasten your seat belt ( Y page 58).
The warning lamp goes out.
There are objects on the front-passenger seat.
X Remove the objects from the front-passenger seat and stow
them in a secure place.
The warning lamp goes out.
260Warning and indicator lamps in the instrument cluster
On-board computer and displays

ProblemPossible causes/consequences and M Solutions
ü
The red seat belt warn-
ing lamp flashes and an
intermittent audible
warning sounds.The driver or front passenger has not fastened their seat b elt. The
vehicle is being driven faster than 15 mph (25 km/h) or has briefly
been driven faster than 15 mph (25 km/h). X Fasten your seat belt ( Y page 58).
The warning lamp goes out and the intermittent warning tone
ceases.
There are objects on the front-passenger seat. The vehicle is being
driven faster than 15 mph (25 km/h) or has briefly been driven
faster than 15 mph (25 km/h).
X Remove the objects from the front-passenger seat and stow
them in a secure place.
The warning lamp goes out and the intermittent warning tone
ceases.
Warning and indicator lamps in the instrument cluster261
On-board computer and displays
Z

ProblemPossible causes/consequences and M Solutions
!
The yellow ABS warning
lamp is lit while the
engine is running. A
warning tone also
sounds.EBD is not available due to a malfunction. Therefore, BAS, BAS
PLUS, ESP®
, PRE-SAFE ®
, PRE-SAFE ®
Brake, the HOLD function,
hill start assist and ESP ®
trailer stabilization are also unavailable,
for example.
ATTENTION ASSIST is deactivated.
GWARNING
The brake system continues to function normally, but wi thout the
functions listed above. The front and rear wheels could therefore
lock if you brake hard, for example.
The steerability and braking characteristics may be sever ely affec-
ted. The braking distance in an emergency braking situation can
increase.
If ESP ®
is not operational, ESP ®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Observe the additional display messages in the multifunction
display.
X Drive on carefully.
X Visit a qualified specialist workshop.
$ (USA only)
J (Canada only)
÷ å !
The red brake warning
lamp, the yellow ESP ®
and ESP ®
OFF warning
lamps and the yellow
ABS warning lamp are
lit while the engine is
running.ABS and ESP ®
are not available due to a malfunction. Therefore,
BAS, BAS PLUS, EBD, PRE-SAFE ®
, PRE-SAFE ®
Brake, the HOLD
function, hill start assist and ESP ®
trailer stabilization are also
unavailable, for example.
ATTENTION ASSIST is deactivated.
GWARNING
The brake system continues to function normally, but wi thout the
functions listed above. The front and rear wheels could therefore
lock if you brake hard, for example.
The steerability and braking characteristics may be sever ely affec-
ted. The braking distance in an emergency braking situation can
increase.
If ESP ®
is not operational, ESP ®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Observe the additional display messages in the multifunction
display.
X Drive on carefully.
X Visit a qualified specialist workshop.
264Warning and indicator lamps in the instrument cluster
On-board computer and displays

Engine
ProblemPossible causes/consequences and M Solutions
;
The yellow Check
Engine warning lamp
lights up while the
engine is running.There may be a malfunction, for example:
R in the engine management
R in the fuel injection system
R in the exhaust system
R in the ignition system
R in the fuel system
The emission limit values may be exceeded and the engine may be
in emergency mode.
X Have the vehicle checked as soon as possible at a qualified
specialist workshop.
iIn some states, you must immediately visit a qualified sp ecial-
ist workshop as soon as the yellow Check Engine warning lam p
lights up. This is due to the legal requirements in effect in these
states. If in doubt, check whether such legal regulations a pply in
the state in which you are currently driving.
8
The yellow reserve fuel
warning lamp flashes
while the vehicle is in
motion. In addition,
the ; Check Engine
warning lamp may light
up.The fuel system pressure is too low. The fuel filler cap i s not closed
correctly or the fuel system is leaking.
X Observe the additional display messages in the multifunction
display.
X Check that the fuel filler cap is correctly closed.
X If the fuel filler cap is not correctly closed: close the fuel filler
cap.
X If the fuel filler cap is closed: visit a qualified specialist work-
shop.
8
The yellow reserve fuel
warning lamp lights up
while the engine is run-
ning.The fuel level has dropped into the reserve range.
X Refuel at the nearest gas station.
Warning and indicator lamps in the instrument cluster267
On-board computer and displays
Z

ProblemPossible causes/consequences and M Solutions
?
The red coolant warn-
ing lamp lights up while
the engine is running
and the coolant tem-
perature gauge is at the start of the scale.The temperature sensor for the coolant temperature gauge is
defective.
The coolant temperature is no longer being monitored. There is a
risk of engine damage if the coolant temperature is too high.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions. Do not continue
driving under any circumstances.
X Secure the vehicle against rolling away ( Y page 168).
X Consult a qualified specialist workshop.
268Warning and indicator lamps in the instrument cluster
On-board computer and displays

ProblemPossible causes/consequences and M Solutions
?
The red coolant warn-
ing lamp comes on
while the engine is run-
ning.The coolant level is too low.
If the coolant level is correct, the airflow to the eng ine radiator may
be blocked or the electric engine radiator fan may be malfunc-
tioning.
The coolant is too hot and the engine is no longer being cooled
sufficiently.
X Observe the additional display messages in the multifunction
display.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Secure the vehicle against rolling away ( Y page 168).
X Wait until the engine has cooled down.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X Check the coolant level and add coolant ( Y page 303). Observe
the warning notes.
X If you need to add coolant more often than usual, have the
engine coolant system checked.
X At coolant temperatures below 248 ‡ (120 †), drive to the
nearest qualified specialist workshop.
X Avoid subjecting the engine to heavy loads, e.g. drivin g in moun-
tainous terrain, and stop-and-go traffic.
?
The red coolant warn-
ing lamp comes on
while the engine is run-
ning. A warning tone
also sounds.The coolant temperature has exceeded 248 ‡ (120 †). The air-
flow to the engine radiator may be blocked or the coo lant level may
be too low.
GWARNING
The engine is not being cooled sufficiently and may be damaged.
Do not drive when your engine is overheated. This can ca use some
fluids which may have leaked into the engine compartment to
catch fire.
Steam from the overheated engine can also cause serious burns
which can occur just by opening the hood.
There is a risk of injury. X Observe the additional display messages in the multifunction
display.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Secure the vehicle against rolling away ( Y page 168).
X Wait until the engine has cooled down.
Warning and indicator lamps in the instrument cluster269
On-board computer and displays
Z

Tires
ProblemPossible causes/consequences and M Solutions
h
The yellow tire pressure
monitor warning lamp
(pressure loss/
malfunction) is lit.The tire pressure monitor has detected a loss of pressure in at
least one of the tires.
GWARNING
With tire pressures which are too low, there is a risk of the fol-
lowing hazards:
R they may burst, especially as the load and vehicle speed
increase.
R they may wear excessively and/or unevenly, which may gre atly
impair tire traction.
R the driving characteristics, as well as steering and braki ng, may
be greatly impaired.
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or b raking
maneuvers. Pay attention to the traffic conditions as y ou do so.
X Secure the vehicle against rolling away ( Y page 168).
X Observe the additional display messages in the multifunction
display.
X Check the tires and, if necessary, follow the instructions for a
flat tire ( Y page 314).
X Check the tire pressure ( Y page 339).
X If necessary, correct the tire pressure.
h
The yellow tire pressure
monitor warning lamp
(pressure loss/
malfunction) flashes for
approximately one
minute and then
remains lit.The tire pressure monitor is faulty.
GWARNING
The system is possibly unable to recognize or register low tire
pressure.
There is a risk of an accident.
X Observe the additional display messages in the multifunction
display.
X Visit a qualified specialist workshop.
Warning and indicator lamps in the instrument cluster271
On-board computer and displays
Z