coolant temperature MERCEDES-BENZ GLK SUV 2008 Owners Manual

Central locking
Automatic door locking feature
(on-board computer, luxury multi-
function steering wheel). ................104
Key. .................................................. 58
Central locking/unlocking button ......59
Central unlocking Key. .................................................. 58
Centre console
Overview. .......................................... 30
Changing a wheel
see Flat tyre
Checklist (off-road driving)............... 159
Child-proof locks Rear doors. ....................................... 50
Children
In the vehicle. ................................... 41
Restraint systems. ............................ 41
Child seat
Automatic recognition ......................43
Automatic recognition (malfunc-
tion). ............................................... 200
Display message ............................. 182
ISOFIX............................................... 49
Recommendations. ...........................46
Suitable positions. ............................ 44
Cigarette lighter................................. 138
Cleaning the panorama sliding
sunroof................................................ 170
Cleaning the windscreen ..................169
Collapsible wheel Technical data. ............................... 253
COMAND display
Cleaning. ........................................ 170
Constant headlamp mode
see Daytime driving lights
Convenience closing ............................82
Convenience opening ........................... 82
Coolant Checking the level. .........................149
Display message (luxury multi-
function steering wheel) .................186
Display message (multi-function
steering wheel). ......................180, 186
Mixture ratio ................................... 247
Temperature gauge ...........................90
Warning lamp.................................. 202 Cornering lights
Display message ............................. 187
Cruise control..................................... 108
Display message ............................. 182
Cup holder.......................................... 131
Current fuel consumption On-board computer (multi-func-
tion steering wheel). ...................93, 96 D
Dashboard Cleaning. ........................................ 170
see Instrument cluster
Date
Setting (on-board computer,
luxury multi-function steering
wheel). ............................................ 102
Setting (on-board computer,
multi-function steering wheel) ..........93
Daytime driving lights.......................... 75
On-board computer (luxury multi-
function steering wheel) .................102
Delayed switch-off
Exterior lighting (luxury multi-
function steering wheel) .................103
Interior lighting (on-board com-
puter, luxury multi-function steer-
ing wheel). ...................................... 103
Diesel
Low outside temperatures. .............146
Diesel engine
Winter driving. ................................ 146
Digital speedometer............................ .96
Dipped-beam headlamps Display message ............................. 188
Symmetrical. .................................. 162
Display message................................ 176
Display messages Service interval display. ..................167
Symbol messages. ..........................182
Text messages. ............................... 177
Distance recorder
see Total distance recorder
see Trip meter 6 Index
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Standard display
On-board computer (luxury multi-
function steering wheel). ..................95
On-board computer (multi-func-
tion steering wheel). .........................92
Station
see Radio
Steering wheel
Adjusting .......................................... 66
Buttons (on-board computer,
luxury multi-function steering
wheel). .............................................. 93
Buttons (on-board computer,
multi-function steering wheel) ..........91
Storing settings ................................ 69
Steering wheel boss
Cleaning. ........................................ 170
Steering wheel gearshift paddles....... 88
Stowage compartment ......................129
Armrest (under) .............................. 130
Glove compartment. .......................130
Rear seat armrest. ..........................131
Stowage compartments
Under driver's seat/front-
passenger seat. .............................. 130
Submenu (luxury multi-function
steering wheel)
Convenience ................................... 104
Factory settings .............................. 104
Instrument cluster .......................... 101
Lights ............................................ .102
Standard display. .............................. 95
Time/date. ..................................... 102
Vehicle............................................ 104
Summer opening
see Convenience opening
Sun visor............................................. 137
Supplemental Restraint System see SRS
Surround lighting
On-board computer (luxury multi-
function steering wheel) .................103
Switching off the alarm
ATA. .................................................. 55 T
Tailgate Display message ............................. 183
Emergency unlocking...................... 214
Limiting the opening angle................ 61
Tail lamp
Display message ............................. 191
Tail lamps
changing. ........................................ 220
Display message ............................. 191
Tail pipes
Cleaning. ........................................ 171
Tank
see Fuel tank
Tank capacity ..................................... 245
Technical data GLK 280 4MATIC ............................ 249
GLK 320 CDI 4MATIC .....................250
GLK 350 4MATIC ............................ 249
Trailer loads .................................... 254
Tyres. .............................................. 252
Wheels. ........................................... 252
Telephone
see Mobile phone
Telephone compartment ...................130
Temperature Coolant. ............................................ 90
Outside temperature......................... 90
Thermatic
Malfunction indicator lamp. ............199
Thermotronic
Malfunction indicator lamp. ............199
Tightening torque............................... 231
Time Setting (on-board computer,
luxury multi-function steering
wheel). ............................................ 102
Setting (on-board computer,
multi-function steering wheel)
......................................................... 93
TIREFIT kit
Using. ............................................. 222
TopTether .............................................. 49
Total distance recorder................. 92, 95
Tow-away protection........................... 55
Towing................................................. 23814 Index
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Instrument cluster
Vehicles with a multi-function steering wheel (4 buttons)i
Please refer to the overview of the indicator and warning lamps ( Ypage 25).
FunctionPage
:Fuel gauge
;Coolant temperature gauge90
=Speedometer
?Rev counter90
AStatus indicator for auto-
matic transmission
85
BMulti-function display91
COutside temperature dis-
play 1
90
Vehicles with Speed-
tronic*: stored limit speed
110
Clock93
DBrightness control
1
Vehicles for the United Kingdom: the speed in km/h is shown instead of the outside temperature.
24Instrument cluster
At a glance
* optional
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Vehicles with a luxury multi-function steering wheel (12 buttons
*)i
Please refer to the overview of the indicator and warning lamps (Y page 27).
FunctionPage
:Fuel gauge
;Coolant temperature gauge90
=Speedometer
?Segments90
AMulti-function display94
BRev counter90
COutside temperature dis-
play2
90
Additional speedometer101
DDisplay for automatic trans-
mission
85
EClock102
FBrightness control
2
Vehicles for the United Kingdom: the additional speedometer display is always shown instead of the outside
temperature.
26Instrument cluster
At a glance
* optional
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Instrument cluster
Points to remember
You will find an illustration of the instrument
cluster in the "At a glance" section.
Vehicles with a multi-function steering wheel
(4 buttons) (Y page 24)
Vehicles with a luxury multi-function steering
wheel* (12 buttons) (Y page 26)G
Risk of accident
No further messages can be displayed if the
instrument cluster and/or the multi-function
display fails.
This means that you will not see information
about the driving situation, such as the speed,
outside temperature, warning/indicator
lamps, display messages or system failures.
The vehicle's handling characteristics may be
affected. Adjust your driving style and speed
accordingly.
Immediately consult a qualified specialist
workshop which has the necessary specialist
knowledge and tools to carry out the work
required. Mercedes-Benz recommends that
you use a Mercedes-Benz Service Centre for
this purpose. In particular, work relevant to
safety or on safety-related systems must be
carried out at a qualified specialist workshop. Coolant temperature gauge
The coolant temperature gauge is in the
instrument cluster on the left-hand side.
Under normal operating conditions and with
the specified coolant level, the coolant tem-
perature may rise to 120 †. The coolant tem-
perature may rise to the top end of the scale
at high outside temperatures and on long
uphill stretches. Speedometer with segments (vehi-
cles with 12-button luxury multi-func-
tion steering wheel*)
The segments in the speedometer indicate
which speed range is available.
Cruise control* mode:
The segments light up from the stored speed
to the maximum speed.
Variable Speedtronic* mode:
The segments light up from the start of the
scale to the selected limit speed. Rev counter
The red band in the rev counter indicates the
engine's overrevving range. The fuel supply is
interrupted to protect the engine when the
red band is reached.
! Do not drive in the overrevving range.
Doing so will damage the engine. Outside temperature display
G
Risk of accident
When the temperature displayed is just above
freezing point, the road surface may be icy,
especially in wooded areas or on bridges. The
vehicle could skid if you fail to adapt your
driving style. Always adapt your driving style
and drive at a speed to suit the prevailing
weather conditions.
Changes in the outside temperature are dis-
played after a short delay. 90 Instrument clusterCont
rols
* optional
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i
The difference in quantity between the
minimum mark and maximum mark is
approximately 2 litres.
! Do not add too much oil. If too much oil
is added and the oil level is above the max-
imum mark on the dipstick, the engine or
catalytic converter could be damaged.
Have excess oil siphoned off.
X Replace cap :on the filler neck and
tighten clockwise.
Ensure that the cap locks into place
securely.
For further information on engine oil, see
(Y page 246). Coolant
Only check the coolant level when the vehicle
is on a level surface and the engine has cooled
down.
X Turn the key to position 2(Y page 61) in
the ignition lock.
X Check the coolant temperature gauge in
the multi-function display. G
Risk of injury
The cooling system is pressurised. Therefore,
only unscrew the cap once the engine has
cooled down. The coolant temperature gauge
must display less than 70 †. Otherwise, you
could be scalded by escaping hot coolant. The coolant expansion tank is located in the
engine compartment on the right when
viewed in the direction of travel. X
Slowly turn cap :half a turn anti-clock-
wise to allow excess pressure to escape.
X Turn cap :further anti-clockwise and
remove it.
There is sufficient coolant in expansion
tank ;if the coolant is level with marker
bar =in the filler neck when cold or
approximately 1.5 cm higher when hot.
X Top up the coolant if necessary.
X Replace cap :and tighten all the way to
the stop.
For further information on coolant, see
(Y page 247). Windscreen washer system/head-
lamp cleaning system*
The washer fluid reservoir for the windscreen
washer system and headlamp cleaning sys-
tem* is located in the engine compartment Engine compartment
149Operation
* optional
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Display messages
Possible causes/consequences and
X
X Solutions à a
with 4
buttons:
inopera-
tive
a with
12 buttons:
inopera-
tive DSR is deactivated due to a malfunction.
X
Have DSR checked at a qualified specialist workshop. ? a
with 4
buttons:
Stop vehi-
cle Engine
off
a with
12 buttons:
Coolant
Stop vehi-
cle Switch
engine off The coolant is too hot. In addition, the
?warning lamp in
the instrument cluster lights up and a warning tone sounds.
X Pull over and stop the vehicle safely and switch off the
engine, paying attention to road and traffic conditions.
X Make sure that the air supply to the radiator is not blocked,
e.g. by slush.
X Wait until the display message disappears before restarting
the engine. Otherwise, there is a risk of engine damage.
X Observe the coolant temperature gauge.
X If the coolant temperature increases again, visit a qualified
specialist workshop immediately. The poly-V-belt may have torn. A warning tone also sounds.
X
Pull over and stop the vehicle safely and switch off the
engine, paying attention to road and traffic conditions.
X Check the poly-V-belt.
X If the poly-V-belt is not damaged: do not start the engine
again until the display message goes out. Otherwise, there
is a risk of engine damage.
X If the poly-V-belt is torn: do not continue driving. Consult
a qualified specialist workshop. ? The engine fan is faulty.
X
If the coolant temperature is less than 120 †, you can
continue driving to the nearest qualified specialist work-
shop.
X Avoid subjecting the engine to heavy loads (e.g. driving in
mountainous terrain) and stop-and-go driving. 186 Display
messagesPractical advice
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Problem
Possible causes/consequences and
X XSolutions d
The yellow ESP ®
warning lamp is
lit while the
engine is run-
ning. In addition,
a message
appears in the
multi-function
display. G
Risk of accident
ESP ®
is unavailable due to a malfunction. ESP ®
and ESP ®
trailer
stabilisation will not stabilise the vehicle if it starts to skid or if a
wheel starts to spin.
X Observe the additional messages in the multi-function display
(Y page 176).
X Drive on carefully.
X Visit a qualified specialist workshop. 6
The red SRS
warning lamp is
lit while the
engine is run-
ning. G
Risk of injury
There is a malfunction in the restraint system. The airbags or belt
tensioners may either be triggered unintentionally or, in the event
of an accident, not be triggered at all.
X Visit a qualified specialist workshop immediately. J
The red brake
system warning
lamp comes on
while you are
driving. A warn-
ing tone also
sounds. You are driving with the parking brake applied.
X
Release the parking brake.
The warning lamp goes out and the warning tone ceases. J
The red brake
system warning
lamp comes on
while the engine
is running. A
warning tone
also sounds. G
Risk of accident
There is insufficient brake fluid in the fluid reservoir.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
X Consult a qualified specialist workshop immediately.
X Observe the additional messages in the multi-function display
(Y page 176).
Do not top up the brake fluid. This will not rectify the fault. ?
The red coolant
warning lamp
lights up while
the engine is
running and the
coolant temper-
ature gauge is at
the start of the
scale. The temperature sensor for the coolant temperature gauge is
faulty.
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 Consult a qualified specialist workshop. 202 TroubleshootingPractical advice
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Problem
Possible causes/consequences and
X
X Solutions ?
The red coolant
warning lamp
comes on while
the engine is
running. A warn-
ing tone also
sounds. The coolant temperature has exceeded 130 †. The airflow to the
radiator may be blocked or the coolant level may be too low.
The engine is not being cooled sufficiently and may be damaged.
X
Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Allow the engine and coolant to cool.
X Make sure that the air supply to the radiator is not blocked, e.g.
by slush.
X Check the coolant level (Y page 149). Observe the warning
notes.
X If necessary, top up the coolant.
X Have the engine cooling system checked at a qualified specialist
workshop if the coolant needs topping up more often than usual.
If the coolant level is correct, the electric radiator fan may be
faulty.
X Do not continue driving under any circumstances.
X Consult a qualified specialist workshop. ;
The yellow
engine diagnos-
tics warning
lamp lights up
while the engine
is running. Vehicles with a diesel engine: the fuel tank has been run dry.
X
Start the engine three to four times after refuelling.
Emergency running mode is cancelled. The vehicle need not be
checked. ;
The yellow
engine diagnos-
tics warning
lamp lights up
while the engine
is running. There may be a fault, for example
R
in the engine management
R in the ignition system
R in the exhaust system
R in the ignition system (for vehicles with petrol engines)
The emission limit values may be exceeded and the engine can
run in emergency mode.
X Have the vehicle checked as soon as possible at a qualified
specialist workshop. 7
The red seat belt
warning lamp
lights up for 6
seconds after
the engine starts
up31
. The seat belt warning lamp reminds the driver and front passenger
to fasten their seat belts.
X Fasten your seat belt (Y page 70). Troubleshooting
203Practical advice
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Problem
Possible causes/consequences and
X XSolutions The engine will not
start. You cannot hear
the starter motor oper-
ating. The on-board voltage is too low because the starter battery is too
weak or discharged.
X
Jump-start the vehicle (Y page 234).
If the engine does not start despite attempting to jump-start it:
X Consult a qualified specialist workshop. The starter motor was exposed to a thermal load that was too high.
X
Allow the starter motor to cool down for approximately two
minutes.
X Try to start the engine again.
If the engine still does not start:
X Consult a qualified specialist workshop. Vehicles with a petrol
engine:
The engine is not run-
ning smoothly and is
misfiring. There is a malfunction in the engine electronics or a mechanical
component of the engine control unit.
X
Only depress the accelerator pedal slightly.
X Have the cause rectified immediately at a qualified specialist
workshop.
Otherwise, non-combusted fuel may get into the catalytic con-
verter and damage it. The coolant tempera-
ture gauge shows a
value above 120 †.
The coolant warning
lamp may also light up
and a warning tone may
sound (Y
page 90). The coolant level is too low. The coolant is too hot and the engine
is no longer being cooled sufficiently.
X
Stop as soon as possible and allow the engine and the coolant
to cool down.
X Check the coolant level (Y page 149). Observe the warning
notes as you do so and top up the coolant if necessary. If the coolant level is correct, the radiator fan may be faulty. The
coolant is too hot and the engine is no longer being cooled suffi-
ciently.
X
If the coolant temperature is less than 120 †, you can continue
driving to the nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving on
mountain roads and stop/start driving. 208 TroubleshootingPractical advice
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