2015 MERCEDES-BENZ GLA-Class coolant temperature

Children
In the vehicle .................................. .58
Restraint systems ............................ 59
Special seat belt retractor .............. .59
Child seat
Forward-facing restraint system ...... 62
LATCH-type (ISOFIX) child seat
anchors ............................................ 60
On the front-passenger seat ............ 62
Rearward-facing restraint system .... 62
Top Tether ...................................... .61
Cigarette lighter ................................ 276
Cleaning Mirror turn signal .......................... .301
Climate control
Air-conditioning system ................. 127
Automatic climate control (dual-
zone) .............................................. 129
Controlling automatically .............. .133
Cooling with air dehumidification .. 131
Defrosting the windows ................. 135
Defrosting the windshield .............. 135
General notes ................................ 126
Indicator lamp ................................ 133
Information about using auto-
matic climate control ..................... 130
Maximum cooling .......................... 135
Notes on using the air-condition-
ing system ..................................... 128
Overview of systems ..................... .126
Problems with cooling with air
dehumidification ............................ 133
Problem with the rear window
defroster ........................................ 137
Refrigerant ..................................... 367
Refrigerant filling capacity ............. 367
Setting the air distribution ............. 134
Setting the airflow ......................... 134
Setting the air vents ..................... .138
Setting the temperature ................ 133
Switching air-recirculation mode
on/off ............................................ 137
Switching on/off ........................... 131
Switching residual heat on/off ...... 137 Switching the rear window
defroster on/off ............................ 136
Switching the ZONE function on/
off .................................................
.134
Climate control system
Automatic engine start .................. 146
Automatic engine switch-off .......... 145
Deactivating/activating ................. 146
General information ....................... 145
Important safety notes .................. 145
Introduction ................................... 145
Cockpit
Overview .......................................... 32
see Instrument cluster
Coffee cup symbol
see ATTENTION ASSIST
COLLISION PREVENTION ASSIST
Display message ............................ 222
COLLISION PREVENTION ASSIST
PLUS
Activating/deactivating ................. 214
Display message ............................ 229
Operation/notes .............................. 66
COMAND
see separate operating instructions
Combination switch .......................... 112
Compass Calibrating ..................................... 290
Calling up ....................................... 289
Setting .......................................... .289
Consumption statistics (on-board
computer) .......................................... 207
Convenience closing feature .............. 88
Convenience opening feature ............ 88
Coolant (engine) Checking the level ......................... 295
Display message ............................ 238
Filling capacity ............................... 366
Important safety notes .................. 365
Temperature (on-board computer, AMG vehicles) ................................ 218
Temperature gauge ........................ 204
Warning lamp ................................. 260
Cooling
see Climate control
Copyright ............................................. 30 Index
7

TELEAID
Call priority .................................... 281
Downloading destinations
(COMAND) ..................................... 281
Downloading routes ....................... 285
Emergency call .............................. 278
General notes ................................ 277
Geo fencing ................................... 285
Locating a stolen vehicle ............... 284
MB info call button ....................... .280
Remote vehicle locking .................. 283
Roadside Assistance button .......... 280
Search & Send ............................... 282
Self-test ......................................... 278
Speed alert ................................... .285
System .......................................... 278
Triggering the vehicle alarm ........... 285
Vehicle remote malfunction diag-
nosis .............................................. 284
Vehicle remote unlocking .............. 283
Telephone
Accepting a call ............................ .212
Display message ............................ 251
Menu (on-board computer) ............ 211
Number from the phone book ....... .212
Redialing ........................................ 212
Rejecting/ending a call ................. 212
Temperature
Coolant .......................................... 204
Coolant (on-board computer,
AMG vehicles) ................................ 218
Engine oil (on-board computer,
AMG vehicles) ................................ 218
Outside temperature ..................... .205
Setting (climate control) ................ 133
Through-loading ................................ 269
Time see separate operating instructions
Timing (RACETIMER) ......................... 219
Tiredness assistant see ATTENTION ASSIST
TIREFIT kit .......................................... 308
Tire pressure Calling up (on-board computer) ..... 332
Checking manually ........................ 331
Display message ............................ 245
Important safety notes .................. 332 Maximum ....................................... 330
Notes ............................................. 329
Not reached (TIREFIT) .................... 310
Reached (TIREFIT) .......................... 310
Recommended ............................... 328
see Tire pressure
Tire pressure loss warning sys-
tem
General notes ................................ 331
Important safety notes .................. 331
Restarting ...................................... 331
Tire pressure monitor
Checking the tire pressure elec-
tronically ........................................ 334
Function/notes ............................ .332
General notes ................................ 332
Restarting ...................................... 334
Warning lamp ................................. 263
Warning message .......................... 334
Tires
Aspect ratio (definition) ................. 346
Average weight of the vehicle
occupants (definition) .................... 345
Bar (definition) ............................... 345
Changing a wheel .......................... 347
Characteristics .............................. 345
Checking ........................................ 325
Curb weight (definition) ................. 346
Definition of terms ......................... 345
Direction of rotatio n...................... 348
Display message ............................ 245
Distribution of the vehicle occu-
pants (definition) ............................ 347
DOT, Tire Identification Number
(TIN) ............................................... 344
DOT (Department of Transporta-
tion) (definition) ............................. 345
GAWR (Gross Axle Weight Rating)
(definition) ..................................... 345
General notes ................................ 352
GVW (Gross Vehicle Weight) (def-
inition) ........................................... 346
GVWR (Gross Vehicle Weight Rat-
ing) (definition) .............................. 346
Important safety notes .................. 324
Increased vehicle weight due to
optional equipment (definition) ...... 345
Information on driving .................... 324 Index
19

Instrument cluster
Displays and controls
Function Page
0043
Speedometer with seg-
ments
205
0044
Multifunction display 206
0087
Tachometer 205 Function Page
0085
Coolant temperature 204
0083
Fuel gage
0084
Instrument cluster lighting 204Instrument cluster
33At a glance

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 28). 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, pull over as soon as it is safe to do
so. Contact a qualified specialist workshop.
For an overview, see the instrument panel
illustration (Y
page 33). Displays and operation
Instrument cluster lighting
The lighting in the instrument cluster, in the
displays and the controls in the vehicle inte-
rior can be adjusted using the brightness con-
trol knob.
The brightness control knob is located on the bottom left of the instrument cluster
(Y page 33).
X Turn the brightness control knob clockwise
or counter-clockwise.
If the light switch is set to 0058,0060or
0058, the brightness is dependent upon
the brightness of the ambient light.
i The light sensor in the instrument cluster
automatically controls the brightness of
the multifunction display.
In daylight, the displays in the instrument
cluster are not illuminated. 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.
! A display message is shown if the coolant
temperature is too high. 204
Displays and operationOn-board computer and displays

If the coolant temperature is over 248 ‡
(120 †), do not continue driving. The
engine will otherwise be damaged.
The coolant temperature gauge is in the
instrument cluster on the right-hand side.
Under normal operating conditions and with
the specified coolant level, the coolant tem-
perature may rise to 248 ‡ (120 †). Tachometer
! Do not drive in the overrevving range, as
this could damage the engine.
The red band in the tachometer indicates the
engine's overrevving range.
The fuel supply is interrupted to protect the
engine when the red band is reached. Outside temperature display
You should pay special attention to road con-
ditions when temperatures are around freez-
ing point.
Bear in mind that the outside temperature
display indicates the temperature measured
and does not record the road temperature.
The outside temperature display is in the mul- tifunction display.
Changes in the outside temperature are dis-
played after a short delay. Speedometer with segments
The speedometer is divided into segments on vehicles with DISTRONIC PLUS.
The segments in the speedometer indicate
which speed range is available.
R Cruise control activated (Y page 172):
The segments light up from the stored
speed to the maximum speed.
R DISTRONIC PLUS activated (Y page 174):One or two segments in the set speed
range light up.
R DISTRONIC PLUS detects a vehicle in front:
The segments between the speed of the
vehicle in front and the stored speed light
up. Operating the on-board computer
Overview 0043
Multifunction display
0044 Switches on the Voice Control System;
see the separate operating instructions
0087 Right control panel
0085 Left control panel
0083 Back button
X To activate the on-board computer: turn
the SmartKey to position 1in the ignition
lock.
You can control the multifunction display and
the settings in the on-board computer using
the buttons on the multifunction steering
wheel. Displays and operation
205On-board computer and displays Z

Convenience
Switching the fold-in mirrors when lock-
ing feature on/off
This function is only available on vehicles with
the memory function (Y page 106).
When you activate the Auto. Auto.Mirror
Mirror Fold‐
Fold‐
ing
ing function, the exterior mirrors are folded
in when the vehicle is locked.
If you unlock the vehicle and then open a
door, the exterior mirrors fold out again.
If you have switched on the Auto. Mirror
Auto. Mirror
Folding Folding function and you fold in the exterior
mirrors using the button on the door
(Y page 103), they will not fold out automat-
ically. The exterior mirrors can then only be
folded out using the button on the door.
X Press the 0059or0065 button on the steer-
ing wheel to select the Sett
Sett menu.
X Press the 0064or0063 button to select the
Convenience
Convenience submenu.
X Press 0076to confirm.
X Press the 0064or0063 button to select the
Auto. Mirror Folding Auto. Mirror Folding function.
If the Auto. Mirror Folding
Auto. Mirror Folding function is
activated, the vehicle's exterior mirror is
displayed in orange in the multifunction
display.
X Press the 0076button to save the setting.
Restoring the factory settings X
Press the 0059or0065 button on the steer-
ing wheel to select the Sett
Settmenu.
X Press the 0064or0063 button to select the
Factory Setting
Factory Setting submenu.
X Press 0076to confirm.
The Reset All Settings?
Reset All Settings? message
appears.
X Press the 0064or0063 button to select No
No
or Yes
Yes .
X Press 0076to confirm the selection.
If you have selected Yes
Yes, the multifunction
display shows a confirmation message. For safety reasons, the
Daytime Running Daytime Running
Lamps Lamps function in the Light
Lightsubmenu is only
reset if the vehicle is stationary. AMG menu in AMG vehicles
AMG displays 0043
Digital speedometer
0044 Gear indicator
0087 Upshift indicator
0085 Engine oil temperature
0083 Coolant temperature
0084 Transmission fluid temperature
X Press 0059or0065 on the steering wheel
to select the AMG AMGmenu.
Upshift indicator UP
UP 0087 indicates that the
engine has reached the overrevving range
when in the manual gearshift program.
Upshift indicator UP UP0087 fades out other mes-
sages until you have shifted up.
If the oil temperature is below 160 ‡ (71†),
oil temperature 0085is shown in blue. Avoid
driving at full engine output during this time.
If the transmission fluid temperature is below
122 ‡(50 †), oil temperature 0084is shown in
blue. Avoid driving at full engine output during this time. 218
Menus and submenusOn-board computer and displays

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 295).
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. 00AC
Coolant Too Hot Coolant Too Hot
Stop Vehicle Turn Stop Vehicle Turn
Engine Off Engine 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 159).
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 †). 238
Display messagesOn-board computer and displays

Engine
Problem
Possible causes/consequences and
0050
0050Solutions 00B9
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.
i In some states, you must immediately visit a qualified special-
ist workshop as soon as the yellow Check Engine warning lamp
lights up. This depends on the locally applicable legal require-
ments. If in doubt, check whether such legal regulations apply in the state in which you are currently driving. 00D4
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. 00D4
The yellow reserve fuel
warning lamp flashes
while the engine is run-
ning.
The fuel system pressure is too low. The fuel filler cap is not closed
correctly or the fuel system is leaking.
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. 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 159).
X Consult a qualified specialist workshop. 260
Warning and indicator lamps in the instrument clusterOn-board computer and displays