2015 MERCEDES-BENZ GLK-Class coolant temperature

Child seat
LATCH-type (ISOFIX) child seat
anchors ............................................ 64
Top Tether ...................................... .65
Cigarette lighter ................................ 284
Cleaning Mirror turn signal .......................... .309
Trailer tow hitch ............................ .310
Climate control
Automatic climate control (3-
zone) .............................................. 136
Controlling automatically .............. .139
Cooling with air dehumidification .. 137
Defrosting the windows ................. 142
Defrosting the windshield .............. 141
Dual-zone automatic climate con-
trol ................................................. 133
Important safety notes .................. 132
Indicator lamp ................................ 139
Information about using auto-
matic climate control ..................... 137
Information about using dual-zone
automatic climate control .............. 134
Maximum cooling .......................... 142
Overview of systems ..................... .132
Problems with cooling with air
dehumidification ............................ 139
Problem with the rear window
defroster ........................................ 143
Rear control panel ......................... 136
Refrigerant ..................................... 379
Refrigerant filling capacity ............. 380
Setting the air distribution ............. 140
Setting the airflow ......................... 141
Setting the air vents ..................... .144
Setting the climate mode (AIR
FLOW) ............................................ 139
Setting the temperature ................ 140
Switching air-recirculation mode
on/off ............................................ 143
Switching on/off ........................... 137
Switching residual heat on/off ...... 143
Switching the rear window
defroster on/off ............................ 142
Switching the ZONE function on/
off ................................................. .141 Climate control system
Automatic engine start .................. 153
Automatic engine switch-off .......... 153
Deactivating/activating ................. 153
General information ....................... 153
Important safety notes .................. 152
Introduction ................................... 152
Coat hooks ......................................... 280
Cockpit Overview .......................................... 32
see Instrument cluster
Collapsible spare wheel
Inflating ......................................... 367
see Emergency spare wheel
COMAND
see separate operating instructions
Combination switch .......................... 118
Consumption statistics (on-board
computer) .......................................... 223
Convenience closing feature .............. 92
Convenience opening feature ............ 92
Coolant (engine) Checking the level ......................... 303
Display message ............................ 247
Filling capacity ............................... 379
Important safety notes .................. 378
Temperature gauge ........................ 220
Warning lamp ................................. 268
Cooling
see Climate control
Copyright ............................................. 29
Cornering light function Changing bulbs .............................. 124
Display message ............................ 243
Function/notes ............................ .120
Crash-responsive emergency light-
ing ....................................................... 122
Cruise control Cruise control lever ....................... 175
Deactivating ................................... 176
Display message ............................ 255
Driving system ............................... 175
Function/notes ............................ .175
Important safety notes .................. 175
Setting a speed .............................. 176
Storing and maintaining current
speed ............................................. 175 Index
7

Information .................................... 372
Tires/wheels .................................3
60
Trailer loads ................................... 381
Vehicle data ................................... 380
TELEAID
Call priority ................................... .291
Downloading destinations
(COMAND) ..................................... 291
Downloading routes ....................... 294
Emergency call .............................. 288
General notes ................................ 287
Geo fencing ................................... 294
Locating a stolen vehicle .............. .293
MB info call button ........................ 290
Remote vehicle locking .................. 292
Roadside Assistance button .......... 289
Search & Send ............................... 292
Self-test ......................................... 288
Speed alert ................................... .294
System .......................................... 288
Triggering the vehicle alarm ........... 295
Vehicle remote malfunction diag-
nosis .............................................. 293
Vehicle remote unlocking .............. 292
Telephone
Accepting a call ............................ .227
Display message ............................ 259
Menu (on-board computer) ............ 227
Number from the phone book ....... .228
Redialing ........................................ 228
Rejecting/ending a call ................. 228
Temperature
Coolant .......................................... 220
Outside temperature ..................... .221
Setting (climate control) ................ 140
Time
see separate operating instructions
TIREFIT kit .......................................... 316
Tire pressure Calling up (on-board computer) ..... 339
Checking manually ........................ 339
Display message ............................ 256
Important safety notes .................. 339
Maximum ....................................... 338
Notes ............................................. 337
Not reached (TIREFIT) .................... 317 Reached (TIREFIT) .......................... 318
Recommended ............................... 336
Tire pressure monitor
Checking the tire pressure elec-
tronically ........................................ 341
Function/notes ............................ .339
General notes ................................ 339
Important safety notes .................. 339
Radio type approval for the tire
pressure monitor ........................... 342
Restarting ...................................... 341
Warning lamp ................................. 271
Warning message .......................... 341
Tires
Aspect ratio (definition) ................. 354
Average weight of the vehicle
occupants (definition) .................... 352
Bar (definition) ............................... 352
Changing a wheel .......................... 355
Characteristics .............................. 352
Checking ........................................ 333
Curb weight (definition) ................. 353
Definition of terms ......................... 352
Direction of rotatio n...................... 355
Display message ............................ 256
Distribution of the vehicle occu-
pants (definition) ............................ 355
DOT, Tire Identification Number
(TIN) ............................................... 351
DOT (Department of Transporta-
tion) (definition) ............................. 352
GAWR (Gross Axle Weight Rating)
(definition) ..................................... 353
GTW (Gross Trailer Weight) (defi-
nition) ............................................ 353
GVW (Gross Vehicle Weight) (def-
inition) ........................................... 353
GVWR (Gross Vehicle Weight Rat-
ing) (definition) .............................. 353
Important safety notes .................. 332
Increased vehicle weight due to
optional equipment (definition) ...... 352
Kilopascal (kPa) (definition) ........... 353
Labeling (overview) ........................ 348
Load bearing index (definition) ...... 354
Load index ..................................... 351
Load index (definition) ................... 353
M+S tire s....................................... 335 18
Index

Instrument cluster
Displays and controls
Function Page
0043
Fuel gage
0044
Coolant temperature 220
0087
Speedometer with seg-
ments
221 Function Page
0085
Multifunction display 222
0083
Tachometer 220
i
Adjust the instrument cluster lighting
using the on-board computer
(Y page 231). Instrument cluster
33At a glance

R
When you couple up a trailer, check at reg-
ular intervals that the load is firmly secured.If the trailer is equipped with trailer lights
and brakes, check the trailer to ensure that
these are working.
R Bear in mind that the handling will be less
stable when towing a trailer than when driv-
ing without one. Avoid sudden steering
movements.
R The vehicle/trailer combination is heavier,
accelerates more slowly, has a decreased
gradient climbing capability and a longer
braking distance.
It is more susceptible to side winds and
requires more careful steering.
R If possible, avoid abrupt braking. Depress
the brake pedal moderately at first, so that the trailer can activate its own brakes. Thenincrease the pressure on the brake pedal.
R If the automatic transmission repeatedly
shifts between gears on uphill or downhill
gradients, shift to a lower gear using the
left-hand steering wheel paddle shifter.
A lower gear and lower speed reduce the
risk of engine failure.
R When driving downhill, shift to a lower gear
to utilize the engine's braking effect.
Avoid continuous brake application as this
may overheat the vehicle brakes and, if
installed, the trailer brakes.
R If the coolant temperature increases dra-
matically while the air-conditioning system
is switched on, switch off the air-condition-
ing system.
Coolant heat can additionally be dissipated
by opening the windows and by setting the
blower fan and the interior temperature to
maximum.
R When overtaking, pay particular attention
to the extended length of your vehicle/
trailer combination.
Due to the length of the vehicle/trailer
combination, you require additional road
space in relation to the vehicle you are
overtaking, before you can change back to
the original lane. Decoupling a trailer
G
WARNING
If you uncouple a trailer with the overrun
brake engaged, you could trap your hand
between the vehicle and the trailer drawbar.
There is a risk of injury.
Do not uncouple a trailer if the overrun brake is engaged.
! Do not disconnect a trailer with an
engaged overrun brake. Otherwise, your
vehicle could be damaged by the rebound- ing of the overrun brake.
X Make sure that the automatic transmission
is set to position P.
X Apply the vehicle's parking brake.
X Close all doors and the tailgate.
X Apply the trailer's parking brake.
X Remove the trailer cable and decouple the
trailer. Permissible trailer loads and drawbar
loads
Weight specifications The gross trailer weight is calculated by add-
ing the weight of the trailer to the weight of
the load and equipment on the trailer.
You will find installing dimensions and loads
under "Technical data" (Y
page 381).
Loading a trailer R
When loading the trailer, make sure that
neither the permissible gross weight of the
trailer nor the gross vehicle weight is
exceeded. The permissible gross vehicle
weight is indicated on the identification
plate on the B-pillar on the driver's side of
the vehicle.
You can find the maximum permissible val-
ues on the type plates of your vehicle and
the trailer. When calculating how much
weight the vehicle and trailer may carry, 216
Towing a trailerDriving and parking

Useful information
i This Operator's Manual describes all
models and all standard and optional equip- ment of your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences are possible.
Please note that your vehicle may not be
equipped with all features described. This
also applies to safety-related systems and
functions.
i Read the information on qualified special-
ist workshops (Y page 27). Important safety notes
G
WARNING
If you operate information systems and com-
munication equipment integrated in the vehi- cle while driving, you will be distracted from
traffic conditions. You could also lose control of the vehicle. There is a risk of an accident.
Only operate the equipment when the traffic
situation permits. If you are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the equip-
ment when the vehicle is stationary.
You must observe the legal requirements for
the country in which you are currently driving when operating the on-board computer. G
WARNING
If the instrument cluster has failed or mal-
functioned, you may not recognize function
restrictions in systems relevant to safety. The operating safety of your vehicle may be
impaired. There is a risk of an accident.
Drive on carefully. Have the vehicle checked
at a qualified specialist workshop immedi-
ately.
The on-board computer only shows messages
or warnings from certain systems in the mul- tifunction display. You should therefore make
sure your vehicle is operating safely at all times. Otherwise, a vehicle that is not oper-
ating safely may cause an accident.
If the operating safety of your vehicle is
impaired, park the vehicle safely as soon as
possible. Contact a qualified specialist work-
shop.
For an overview, see the instrument panel
illustration (Y
page 33). Displays and operation
Coolant temperature display
G
WARNING
Opening the hood when the engine is over-
heated or when there is a fire in the engine
compartment could expose you to hot gases
or other service products. There is a risk of
injury.
Let an overheated engine cool down before
opening the hood. If there is a fire in the
engine compartment, keep the hood closed
and contact the fire department.
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 248 ‡ (120 †).
! A display message is shown if the coolant
temperature is too high.
If the coolant temperature is over 248 ‡
(120 †), do not continue driving. The
engine will otherwise be damaged. Tachometer
The red band in the tachometer indicates the
engine's overrevving range.
! Do not drive in the overrevving range, as
this could damage the engine.
The fuel supply is interrupted to protect the
engine when the red band is reached. 220
Displays and operationOn-board computer and displays

Display messages
Possible causes/consequences and
0050
0050Solutions Adaptive Highbeam
Adaptive Highbeam
Assist Inoperative Assist Inoperative Adaptive Highbeam Assist is faulty.
X
Visit a qualified specialist workshop. Adaptive Highbeam Adaptive Highbeam
Assist Currently Assist Currently
Unavailable See Unavailable See
Operator's Manual Operator's Manual Adaptive Highbeam Assist is deactivated and temporarily inoper-
ative. Possible causes are:
R the windshield in the camera's field of vision is dirty.
R visibility is impaired due to heavy rain, snow or fog.
X Clean the windshield.
If the system detects that the camera is fully operational again, the
Adaptive Highbeam Assist Now Available
Adaptive Highbeam Assist Now Available message is dis-
played.
Adaptive Highbeam Assist is operational again. Engine
Display messages
Possible causes/consequences and
0050 0050Solutions 00BD
Check Coolant Check Coolant
Level See Opera‐ Level See Opera‐
tor's Manual tor's Manual The coolant level is too low.
! Avoid making long journeys with too little coolant in the engine
cooling system. The engine will otherwise be damaged.
X Add coolant, observing the warning notes before doing so
(Y page 303).
X If coolant needs to be added more often than usual, have the
engine coolant system checked at a qualified specialist work-
shop. 00AC The fan motor is faulty.
X At coolant temperatures below 248 ‡ (120 †), drive to the
nearest qualified specialist workshop.
X Avoid subjecting the engine to heavy loads, e.g. driving in moun-
tainous terrain, and stop-and-go traffic. Display
messages
247On-board computer and displays Z

Display messages
Possible causes/consequences and
0050
0050Solutions 00AC
Coolant Stop vehi‐ Coolant Stop vehi‐
cle Switch engine cle Switch engine
off off The coolant is too hot.
A warning tone also sounds.
G WARNING
Do not drive when your engine is overheated. This can cause 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 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 Do not start the engine again until the display message goes out
and the coolant temperature is below 248 ‡ (120 †). Other-
wise, the engine could be damaged.
X Pay attention to the coolant temperature display.
X If the temperature increases again, visit a qualified specialist
workshop immediately.
Under normal operating conditions and with the specified coolant
level, the coolant temperature may rise to 248 ‡ (120 †). 248
Display
messagesOn-board computer and displays

Problem
Possible causes/consequences and
0050
0050Solutions 00AC
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 gage is defec-
tive.
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. 268
Warning and indicator lamps in the instrument clusterOn-board computer and displays