cooling MERCEDES-BENZ GLA 2019 Owners Manual

1, 2, 3 ...
4ETS (Electronic Traction System)
see ETS/4ETS (Electronic Trac-
tion System)
4MATIC
Display message ............................ 227
4MATIC (permanent four-wheel
drive).................................................. 168
12 V socket
see Sockets
360° camera
Function/notes .............................182
A
ABS (Anti-lock Braking System)
Display message ............................ 204
Function/notes ................................ 60
Important safety notes .................... 60
Warning lamp ................................. 233
Acceleration
see Kickdown
Accident
Automatic measures after an
accident ...........................................53
Activating media mode
General notes ................................ 248
Activating/deactivating cooling
with air dehumidification.................118
Active Brake Assist
Activating or deactivating .............. 197
Display message ............................ 210
Function/notes ................................ 61
Active Distance Assist
DISTRONIC
Activating ....................................... 160
Calling up a speed......................... 161
Cruise control lever ....................... 160
Deactivating ................................... 163
Display message ............................ 221
Displays in the multifunction dis-
play ................................................ 164
Displays on the instrument clus-
ter .................................................. 164
Driving tips .................................... 164
Function/notes............................. 158
Important safety notes .................. 159
Setting a speed .............................. 162
Setting the specified minimum
distance ......................................... 162
Stopping ........................................ 162
Storing a speed .............................. 161
Active Parking Assist
Canceling ....................................... 178
Detecting parking spaces .............. 175
Display message ............................ 220
Exiting a parking space .................. 177
General notes ................................ 174
Important safety notes .................. 174
Parking .......................................... 176
ADAPTIVE BRAKE................................. 67
Additional speedometer................... 199
Additives (engine oil)........................ 337
Address book
see also Digital Operator's Man-
ual .................................................. 242
Adjusting the volume
Multimedia system ........................ 243
Air bags
Deployment ..................................... 51
Display message ............................ 213
Front air bag (driver, front
passenger) ....................................... 45
Important safety notes .................... 44
Introduction ..................................... 44
Knee bag .......................................... 46
Occupant Classification System
(OCS) ............................................... 47
PASSENGER AIR BAG indicator
lamps ............................................... 40
Side impact air bag.......................... 46
Window curtain air bag.................... 47
Air vents
Important safety notes .................. 123
Rear ............................................... 123
Setting the center air vents ........... 123
Setting the side air vents ............... 123
Air-conditioning system
see Climate control
Alarm
ATA (Anti-Theft Alarm system)......... 68
Switching off (ATA) .......................... 68
Switching the function on/off
(ATA) ................................................ 68
4Index

Paint ..............................................280
Plastic trim ....................................284
Power washer ................................ 279
Rear view camera .......................... 283
Roof lining ...................................... 285
Seat belt ........................................ 285
Seat cover ..................................... 284
Sensors ......................................... 282
Steering wheel ............................... 284
Trim pieces ....................................284
Washing by hand ........................... 279
Wheels ...........................................281
Windows ........................................ 281
Wiper blades .................................. 282
Wooden trim .................................. 284
Cargo compartment enlargement... 253
Cargo compartment floor
Important safety notes .................. 256
Opening/closing ............................ 256
Stowage well (under) ..................... 256
Cargo tie down rings......................... 255
CD
see also Digital Operator's Man-
ual ..................................................242
CD player (on-board computer)........195
Center console
Lower section .................................. 35
Upper section .................................. 34
Central locking
Automatic locking (on-board
computer) ...................................... 199
Locking/unlocking (SmartKey) ........69
Change of address.............................. 26
Change of ownership.......................... 26
Changing a wheel
Wheels and tires ............................ 326
Child
Restraint system .............................. 55
Child seat
Forward-facing restraint system ...... 58
LATCH-type (ISOFIX) child seat
anchors ............................................ 56
On the front-passenger seat ............ 57
Rearward-facing restraint system .... 58
Top Tether .......................................56
Child-proof locks
Important safety notes .................... 58
Rear doors .......................................59
Children
Special seat belt retractor ...............54
Children in the vehicle
Important safety notes .................... 53
Cigarette lighter................................ 259
Cleaning
Mirror turn signal ...........................282
Climate control
Air-conditioning system ................. 114
Automatic climate control (dual-
zone) .............................................. 116
Controlling automatically ...............119
Cooling with air dehumidification .. 118
Defrosting the windows ................. 121
Defrosting the windshield .............. 120
General notes ................................ 113
Indicator lamp ................................ 119
Information about using auto-
matic climate control ..................... 117
Maximum cooling .......................... 121
Notes on using the air-condition-
ing system ..................................... 115
Overview of systems ......................113
Problem with the rear window
defroster ........................................ 122
Problems with cooling with air
dehumidification ............................ 119
Refrigerant ..................................... 338
Refrigerant filling capacity ............. 339
Setting the air distribution ............. 120
Setting the air vents ......................123
Setting the airflow ......................... 120
Setting the temperature ................ 119
Switching air-recirculation mode
on/off ............................................ 122
Switching on/off ........................... 118
Switching residual heat on/off ...... 122
Switching the rear window
defroster on/off ............................ 122
Switching the ZONE function
on/off ............................................ 120
Cockpit
Overview .......................................... 31
see Instrument cluster
Collision warning
see Active Brake Assist
Index7

COMAND
Driving dynamics display ...............171
COMAND display
Cleaning ......................................... 283
Combination switch.......................... 104
Compass
Calibrating ..................................... 271
Calling up ....................................... 271
Magnetic field zone maps .............. 272
Setting ...........................................271
Connecting a USB device
see also Digital Operator's Man-
ual ..................................................242
Consumption statistics (on-board
computer).......................................... 192
Controller...........................................243
Convenience closing feature.............. 85
Convenience opening feature............ 84
Coolant (engine)
Checking the level ......................... 276
Display message ............................ 217
Filling capacity ............................... 338
Important safety notes .................. 337
Temperature (on-board com-
puter, Mercedes-AMG vehicles) ..... 200
Temperature gauge ........................ 189
Warning lamp ................................. 238
Cooling
see Climate control
Copyright............................................. 30
Cornering light function
Display message ............................ 214
Function/notes .............................104
Cover
see Roller sunblind
Cruise control
Activation conditions ..................... 157
Cruise control lever ....................... 157
Deactivating ................................... 158
Display message ............................ 222
Driving system ............................... 157
Function/notes .............................157
Important safety notes .................. 157
Setting a speed .............................. 158
Storing and maintaining current
speed ............................................. 157
Cup holder
Center console .............................. 257
Important safety notes .................. 257
Rear compartment ......................... 258
Customer Assistance Center
(CAC)..................................................... 28
Customer Relations Department....... 28
D
Dashboard
see Cockpit
Dashboard lighting
see Instrument cluster lighting
Data
see Technical data
Daytime running lamps
Display message ............................ 216
Function/notes .............................102
Switching on/off (on-board com-
puter) ............................................. 199
Declarations of conformity................. 27
Decorative film
Cleaning instructions ..................... 281
Diagnostics connection......................27
Digital Operator's Manual
Help .................................................24
Introduction .....................................24
Digital speedometer.........................193
DIRECT SELECT lever
Automatic transmission ................. 134
Display messages
ASSYST PLUS ................................ 277
Calling up (on-board computer) ..... 203
Driving systems .............................219
Engine ............................................ 217
General notes ................................ 203
Hiding (on-board computer) ........... 203
Lights ............................................. 214
Safety systems .............................. 204
SmartKey ....................................... 229
Tires ............................................... 223
Vehicle ...........................................225
Distance control
see Active Distance Assist DISTRONIC
Distance recorder.............................192
Distance warning (warning lamp).... 240
8Index

Overview of climate control systems
General notes
Observe the settings recommended on the fol-lowing pages. The windows could otherwisefog up.
To prevent the windows from fogging up:
Rswitch off climate control only briefly
Rswitch on air-recirculation mode only briefly
Rswitch on the cooling with air dehumidifica-tion function
Rswitch on the defrost windshield functionbriefly, if required
The air-conditioning system or dual-zone auto-matic climate control regulates the tempera-ture and the humidity of the vehicle interiorand filters undesirable substances from theair.
The air-conditioning system or dual-zone auto-matic climate control can only be operatedwhen the engine is running. Optimum opera-tion is only achieved with the side windowsand panorama roof with power tilt/slidingpanel closed.
If you start the engine using your smartphone,the last selected climate control setting isreactivated (Ypage 84).
The residual heat function can only be activa-ted or deactivated with the ignition switchedoff (Ypage 122).
Always keep the ventilation flaps behind theside trim panel in the cargo compartmentclear (Ypage 108). Otherwise the vehicle willnot be ventilated correctly.
iVentilate the vehicle for a brief period dur-ing warm weather, e.g. using the conveni-ence opening feature (Ypage 84). This willspeed up the cooling process and thedesired interior temperature will be reachedmore quickly.
iThe integrated filter filters out most parti-cles of dust and soot and completely filtersout pollen. It also reduces gaseous pollu-tants and odors. A clogged filter reduces theamount of air supplied to the vehicle inte-rior. For this reason, you should alwaysobserve the interval for replacing the filter,which is specified in the Maintenance Book-let. As it depends on environmental condi-tions, e.g. heavy air pollution, the intervalmay be shorter than stated in the Mainte-nance Booklet.
iIt is possible that under certain circum-stances the residual heat function may beactivated automatically an hour after theSmartKey has been removed in order to drythe automatic climate control. The vehicle isthen ventilated for 30 minutes.
Overview of climate control systems113
Climate control

Problems with the "Cooling with air dehumidification" function
ProblemPossible causes/consequences andPPSolutions
The indicator lamp intheZbutton flashesthree times or remainsoff. The "Cooling withair dehumidification"function cannot beswitched on.
Cooling with air dehumidification has been deactivated due to amalfunction.
XVisit a qualified specialist workshop.
Setting climate control to automatic
General notes
The automatic climate control function is onlyavailable in conjunction with dual-zone auto-matic climate control.
In automatic mode, the set temperature ismaintained automatically at a constant level.The system automatically regulates the tem-perature of the dispensed air, the airflow andthe air distribution.
The "Cooling with air dehumidification" func-tion is activated automatically in automaticmode.
Setting climate control to automatic
XTurn the SmartKey to positionDin the igni-tion lock (Ypage 125).
XSet the desired temperature.
XTo activate:press theXbutton.The indicator lamp in theXbutton lightsup. Automatic air distribution and airflow areactivated.
XTo switch to manual mode:press theOorJbutton.
or
XPress the

Example: engine oil cap
XTurn capCcounter-clockwise and removeit.
XAdd engine oil.If the oil level is at or below the MIN markon the oil dipstick, add 1.1 US qt (1.0 liter)of engine oil.
XReplace capCon the filler neck and turnclockwise.Ensure that the cap locks into placesecurely.
XCheck the oil level again with the oil dipstick(Ypage 274).
Further information on engine oil(Ypage 336).
Checking and adding other service
products
Checking coolant level
GWARNING
The cooling system is pressurized, particu-
larly when the motor is warm. If you open
the cap, you could be scalded if hot coolant
sprays out. There is a risk of injury.
Let the engine cool down before you open
the cap. Wear protective gloves and protec-
tive eyewear when opening. Open the cap
slowly to release pressure.
!The coolant level must only be checkedand corrected when the engine has cooleddown (coolant temperature under 104 ‡(40 †). Checking the coolant level when thecoolant temperature is over 104 ‡ (40 †)can lead to damage to the engine or theengine cooling system.
XPark the vehicle on a level surface.
Only check the coolant level when the vehi-cle is on a level surface and the engine hascooled down.
XTurn the SmartKey to positionHin the igni-tion lock (Ypage 125).
XCheck the coolant temperature display inthe instrument cluster.The coolant temperature must be below104 ‡ (40 †).
XTurn the SmartKey to positionZ(Ypage 125) in the ignition lock .
XSlowly turn capCcounter-clockwise and torelieve excess pressure.
XTurn capCfurther counter-clockwise andremove it.If the coolant is at the level of marker bar

For a list of approved engine oils and oil filters,consult an authorized Mercedes-Benz Center.Or visit the websitehttp://bevo.mercedes-benz.com.
The table shows which engine oils have beenapproved for your vehicle.
ModelMB-Freigabe orMB-Approval
All models229.5
Use only SAE 0W-40 or SAE 5W-40 engine oilsfor Mercedes-AMG vehicles.
iMB approval is indicated on the oil con-tainers.
Filling capacities
The following values refer to an engine oilchange, including the oil filter.
ModelCapacity
Mercedes‑AMG vehicles5.8 USqt (5.5 l)
All other models5.9 USqt (5.6 l)
Additives
!Do not use any additives in the engine oil.This could damage the engine.
Brake fluid
GWARNING
The brake fluid constantly absorbs moisture
from the air. This lowers the boiling point of
the brake fluid. If the boiling point of the
brake fluid is too low, vapor pockets may
form in the brake system when the brakes
are applied hard. This would impair braking
efficiency. There is a risk of an accident.
You should have the brake fluid renewed at
the specified intervals.
When handling brake fluid, observe the impor-tant safety notes on service products(Ypage 334).
The brake fluid change intervals can be foundin the Maintenance Booklet.
Only use brake fluid approved by Mercedes-Benz in accordance with MB-Freigabe or MB-Approval 331.0.
Information about approved brake fluid can beobtained at any qualified specialist workshopor on the Internet athttp://bevo.mercedes-benz.com.
iHave the brake fluid regularly replaced at aqualified specialist workshop and thereplacement confirmed in the MaintenanceBooklet.
Coolant
Important safety notes
GWARNING
If antifreeze comes into contact with hot
components in the engine compartment, it
may ignite. There is a risk of fire and injury.
Let the engine cool down before you add
antifreeze. Make sure that antifreeze is not
spilled next to the filler neck. Thoroughly
clean the antifreeze from components
before starting the engine.
!Only add coolant that has been premixedwith the desired antifreeze protection. Youcould otherwise damage the engine.
You can find additional notes on the coolantin the following places:
Rin the Mercedes-Benz Specifications forService Products, MB BeVo 310.1
-on the Internet athttp://bevo.mercedes-benz.com
-on the Mercedes-Benz BeVo app
Ra qualified specialized workshop
!Always use a suitable coolant mixture,even in countries where high temperaturesprevail.
Otherwise, the engine cooling system is notsufficiently protected from corrosion andoverheating.
iHave the coolant regularly replaced at aqualified specialist workshop and thereplacement confirmed in the MaintenanceBooklet.
Service products and filling capacities337
Technical data
Z

Comply with the important safety notes forservice products when handling coolant(Ypage 334).
The coolant is a mixture of water and corro-sion inhibitor/antifreeze concentrate. It per-forms the following tasks:
Ranti-corrosion protection
Rantifreeze protection
Rraising the boiling point
If the coolant has antifreeze protection downto -35 ‡ (-37 †), the boiling point of the cool-ant during operation is approximately 266 ‡(130 †).
Theantifreeze concentrate/corrosion inhibitorconcentration in the engine cooling systemshould:
Rbe at least 50%. This will protect the enginecooling system against freezing down toapproximately -35 ‡(-37 †)
Rnot exceed 55% (antifreeze protection downto -49 ‡ [-45 †]). Otherwise, heat will notbe dissipated as effectively
Mercedes-Benz recommends a coolant or cor-rosion inhibitor/antifreeze concentrate inaccordance withMB Specifications for Service Products 310.1.
iWhen the vehicle is first delivered, it is fil-led with a coolant mixture that ensures ade-quate antifreeze and anti-corrosion protec-tion.
iThe coolant is checked with every mainte-nance interval at a qualified specialist work-shop.
Filling capacities
ModelCapacity
Mercedes‑AMGvehiclesApprox. 12.6 US qt(11.9l)
All other modelsApprox. 8.2 US qt(7.8 l)
Windshield washer system
Important safety notes
GWARNING
Windshield washer concentrate is highly
flammable. If windshield washer concentrate
gets onto hot components of the engine or
the exhaust system, it can ignite. There is a
risk of fire and injury.
Make sure that windshield washer concen-
trate is not spilled in the vicinity of the filler
neck.
!Only MB SummerFit and MB WinterFitwasher fluid should be mixed together. Thespray nozzles may otherwise becomeblocked.
Do not use distilled or de-ionized water. Other-wise, the level sensor may give a false reading.
When handling washer fluid, observe theimportant safety notes on service products(Ypage 334).
At temperatures above freezing:
XFill the washer fluid reservoir with a mixtureof water and windshield washer fluid, e.g.MB SummerFit.
Add 1 part MB SummerFit to 100 parts water.
At temperatures below freezing:
XFill the washer fluid reservoir with a mixtureof water and washer fluid, e.g. MB WinterFit.
For the correct mixing ratio refer to theinformation on the antifreeze reservoir.
iAdd windshield washer fluid, e.g. MB Sum-merFit or MB WinterFit, to the washer fluidall year round.
Climate control system refrigerant
Important safety notes
The climate control system of your vehicle isfilled with refrigerant R‑134a.
The instruction label regarding the refrigeranttype used can be found on the left, on theunderside of the hood.
!Only the refrigerant R‑134a and the PAGoil approved by Mercedes-Benz may be
338Service products and filling capacities
Technical data