tire pressure MERCEDES-BENZ GLA 2019 Owners Manual

Stowage and features......................250
Loading guidelines ...............................250
Stowage areas ..................................... 250
Features .............................................. 257
Maintenance and care......................273
Engine compartment ........................... 273
ASSYST PLUS ...................................... 277
Care ..................................................... 278
Roadside Assistance........................286
Where will I find...? .............................. 286
Flat tire ................................................ 287
Battery (vehicle) .................................. 292
Jump-starting ....................................... 295
Towing and tow-starting ......................298
Fuses ................................................... 301
Wheels and tires...............................304
Important safety notes ........................ 304
Operation ............................................ 304
Winter operation .................................. 306
Tire pressure ....................................... 307
Loading the vehicle .............................. 316
All about wheels and tires ................... 319
Changing a wheel ................................ 325
Wheel and tire combinations ...............329
Emergency spare wheel ....................... 330
Technical data...................................332
Information regarding technical data
............................................................. 332
Vehicle electronics .............................. 332
Identification plates .............................333
Service products and filling capaci-
ties ...................................................... 334
Vehicle data ......................................... 339
Vehicle data for off-road driving .......... 340
Contents3

Connecting a mobile phone (gen-
eral information) ............................ 246
Display message ............................ 228
Introduction ...................................195
Menu (on-board computer) ............ 195
Number from the phone book ........196
Redialing ........................................ 196
Rejecting/ending a call ................. 196
see also Digital Operator's Man-
ual ..................................................242
Temperature
Coolant .......................................... 189
Coolant (on-board computer,
Mercedes-AMG vehicles) ...............200
Engine oil (on-board computer,
Mercedes-AMG vehicles) ...............200
Outside temperature ......................188
Setting (climate control) ................ 119
Transmission oil (on-board com-
puter, Mercedes-AMG vehicles) ..... 200
Through-loading feature................... 253
Timing (RACETIMER)......................... 201
Tire pressure
Calling up (on-board computer) ..... 311
Checking manually ........................ 310
Display message ............................ 223
Maximum ....................................... 310
Not reached (TIREFIT) .................... 291
Notes ............................................. 309
Reached (TIREFIT) .......................... 291
Recommended ............................... 307
Tire pressure loss warning sys-
tem
General notes ................................ 310
Important safety notes .................. 311
Restarting ...................................... 311
Tire pressure monitor
Checking the tire pressure elec-
tronically ........................................ 313
Function/notes .............................311
General notes ................................ 311
Important safety notes .................. 312
Radio type approval for the tire
pressure monitor ........................... 315
Restarting ...................................... 314
Warning lamp ................................. 241
Warning message .......................... 313
TIREFIT kit.......................................... 289
Important safety notes .................. 289
Storage location ............................ 287
Tire pressure not reached .............. 291
Tire pressure reached .................... 291
Tires
Aspect ratio (definition) ................. 324
Average weight of the vehicle
occupants (definition) .................... 323
Bar (definition) ............................... 323
Changing a wheel .......................... 325
Characteristics .............................. 323
Checking ........................................ 304
Curb weight (definition) ................. 324
Definition of terms ......................... 323
Direction of rotation...................... 326
Display message ............................ 223
Distribution of the vehicle occu-
pants (definition) ............................ 325
DOT (Department of Transporta-
tion) (definition) ............................. 323
DOT, Tire Identification Number
(TIN) ............................................... 322
GAWR (Gross Axle Weight Rat-
ing) (definition) .............................. 324
General notes ................................ 329
GVW (Gross Vehicle Weight) (def-
inition) ........................................... 324
GVWR (Gross Vehicle Weight
Rating) (definition) ......................... 324
Important safety notes .................. 304
Increased vehicle weight due to
optional equipment (definition) ...... 324
Information on driving .................... 304
Kilopascal (kPa) (definition) ........... 324
Labeling (overview) ........................ 320
Load bearing index (definition) ...... 325
Load index ..................................... 322
Load index (definition) ................... 324
M+S tires....................................... 306
Maximum load on a tire (defini-
tion) ............................................... 324
Maximum loaded vehicle weight
(definition) ..................................... 324
Maximum permissible tire pres-
sure (definition) ............................. 324
Maximum tire load ......................... 322
Maximum tire load (definition) ....... 324
20Index

MOExtended tires .......................... 306
Optional equipment weight (defi-
nition) ............................................ 325
PSI (pounds per square inch)
(definition) .....................................324
Replacing ....................................... 325
Service life ..................................... 305
Sidewall (definition) ....................... 325
Speed rating (definition) ................ 324
Storing ...........................................326
Structure and characteristics
(definition) ..................................... 323
Summer tires ................................. 306
Temperature .................................. 319
TIN (Tire Identification Number)
(definition) ..................................... 325
Tire bead (definition) ......................325
Tire pressure (definition) ................ 324
Tire pressures (recommended) ...... 324
Tire size (data) ............................... 329
Tire size designation, load-bear-
ing capacity, speed rating .............. 320
Tire tread ....................................... 305
Tire tread (definition) ..................... 325
Total load limit (definition) ............. 325
Traction ......................................... 319
Traction (definition) ....................... 325
Tread wear..................................... 319
Uniform Tire Quality Grading
Standards ...................................... 319
Uniform Tire Quality Grading
Standards (definition) .................... 323
Wear indicator (definition) ............. 325
Wheel rim (definition) .................... 324
see Flat tire
Tool
see Vehicle tool kit
Top Tether............................................ 56
Tow-starting
Emergency engine starting ............ 301
Important safety notes .................. 298
Installing the towing eye ................ 299
Removing the towing eye ............... 299
Towing
Permitted towing methods ............ 300
Towing a trailer
ESP®(Electronic Stability Pro-
gram) ............................................... 66
Towing away
Important safety guidelines ........... 298
Installing the towing eye ................ 299
Notes for 4MATIC vehicles ............ 301
Removing the towing eye ............... 299
Transporting the vehicle ................ 300
With both axles on the ground ....... 300
With the front axle raised ............... 299
Towing eye......................................... 287
Traction system
see ETS/4ETS (Electronic Trac-
tion System)
Traffic reports
see also Digital Operator's Man-
ual .................................................. 242
Transmission
see Automatic transmission
Transmission position display
(DIRECT SELECT lever)...................... 134
Transporting the vehicle.................. 300
Traveling uphill
Brow of hill ..................................... 156
Driving downhill ............................. 156
Maximum gradient-climbing
capability ....................................... 156
Trim pieces (cleaning instruc-
tions).................................................. 284
Trip computer (on-board com-
puter).................................................. 192
Trip odometer
Calling up ....................................... 192
Resetting (on-board computer) ...... 193
Trunk
Emergency release button ............... 83
Opening (from outside the vehi-
cle, HANDS-FREE ACCESS) .............. 80
Trunk lid
see Tailgate
Turn signals
Display message ............................ 214
Replacing bulbs (front) ................... 108
Switching on/off........................... 104
Two-way radio
Frequencies ................................... 332
Installation ..................................... 332
Transmission output (maximum) .... 332
Index21

Type identification plate
see Vehicle identification plate
U
Unlocking
Emergency unlocking ....................... 76
From inside the vehicle (central
unlocking button) ............................. 75
Upshift indicator (on-board com-
puter, Mercedes-AMG vehicles)....... 200
USB devices
Connecting to the Media Inter-
face ...............................................249
V
Vanity mirror (in the sun visor)........259
Vehicle
Correct use ...................................... 27
Data acquisition ............................... 28
Display message ............................ 225
Equipment ....................................... 26
Individual settings .......................... 198
Limited Warranty .............................28
Loading .......................................... 316
Locking (in an emergency) ............... 77
Locking (SmartKey) .......................... 69
Lowering ........................................ 329
Maintenance .................................... 26
Parking for a long period ................ 148
Pulling away................................... 128
Raising ........................................... 327
REACH Regulation ........................... 28
Reporting problems ......................... 28
Securing from rolling away ............ 326
Transporting .................................. 300
Unlocking (in an emergency) ........... 76
Unlocking (SmartKey)...................... 69
Vehicle data ................................... 339
Vehicle battery
see Battery (vehicle)
Vehicle data
Roof load (maximum) ..................... 339
Vehicle data (off-road driving)
Approach/departure angle ............ 340
Maximum gradient climbing abil-
ity .................................................. 340
Vehicle dimensions........................... 339
Vehicle emergency locking................ 77
Vehicle identification number
see VIN
Vehicle identification plate.............. 333
Vehicle tool kit.................................. 287
Ventilation
Setting the vents ........................... 123
Video
Operating the DVD ......................... 195
see also Digital Operator's Man-
ual .................................................. 242
VIN
Seat ............................................... 334
Type plate ...................................... 333
W
Warning and indicator lamps
ABS ................................................ 233
Active Brake Assist ........................ 240
Brakes ........................................... 232
Check Engine ................................. 238
Coolant .......................................... 238
Distance warning ........................... 240
ESP®.............................................. 235
ESP®OFF ....................................... 236
Fuel tank ........................................ 238
Overview .......................................... 32
Reserve fuel................................... 238
Restraint system ............................ 237
Seat belt ........................................ 230
SPORT handling mode................... 236
Tire pressure monitor .................... 241
Washer fluid
Display message ............................ 228
Weather display (COMAND)
see also Digital Operator's Man-
ual.................................................. 242
Wheel and tire combinations
Tires ............................................... 329
Wheel bolt tightening torque........... 329
Wheel chock...................................... 326
Wheels
Changing a wheel.......................... 325
Checking ........................................ 304
Cleaning ......................................... 281
Emergency spare wheel ................. 330
22Index

Protecting the environment
General notes
HEnvironmental note
Daimler's declared policy is one of compre-
hensive environmental protection.
The objectives are for the natural resources
that form the basis of our existence on this
planet to be used sparingly and in a manner
that takes the requirements of both nature
and humanity into account.
You too can help to protect the environment
by operating your vehicle in an environmen-
tally responsible manner.
Fuel consumption and the rate of engine,
transmission, brake and tire wear are affec-
ted by these factors:
Roperating conditions of your vehicle
Ryour personal driving style
You can influence both factors. You should
bear the following in mind:
Operating conditions:
Ravoid short trips as these increase fuel
consumption.
Ralways make sure that the tire pressures
are correct.
Rdo not carry any unnecessary weight.
Rremove roof racks once you no longer
need them.
Ra regularly serviced vehicle will contribute
to environmental protection. You should
therefore adhere to the service intervals.
Ralways have service work carried out at a
qualified specialist workshop.
Personal driving style:
Rdo not depress the accelerator pedal
when starting the engine.
Rdo not warm up the engine when the vehi-
cle is stationary.
Rdrive carefully and maintain a safe dis-
tance from the vehicle in front.
Ravoid frequent, sudden acceleration and
braking.
Rchange gear in good time and use each
gear only up to

Driving safety systems
Overview of driving safety systems
In this section, you will find information aboutthe following driving safety systems:
RABS (Anti-lockBrakingSystem)(Ypage 60)
RBAS (BrakeAssistSystem) (Ypage 61)
RActive Brake Assist (Ypage 61)
RESP®(ElectronicStabilityProgram)(Ypage 63)
REBD (ElectronicBrake forceDistribution)(Ypage 67)
RADAPTIVE BRAKE (Ypage 67)
RSTEER CONTROL (Ypage 67)
Important safety notes
If you fail to adapt your driving style or if youare inattentive, the driving safety systems canneither reduce the risk of an accident noroverride the laws of physics. Driving safetysystems are merely aids designed to assistdriving.
You are responsible for maintaining the dis-tance to the vehicle in front, for vehicle speed,for braking in good time, and for staying inlane. Always adapt your driving style to suitthe prevailing road and weather conditions andmaintain a safe distance from the vehicle infront. Drive carefully.
The driving safety systems described onlywork as effectively as possible when there isadequate contact between the tires and theroad surface. Please pay special attention tothe notes on tires, recommended minimumtire tread depths, etc. (Ypage 305).
In wintry driving conditions, always use wintertires (M+S tires) and if necessary, snowchains. Only in this way will the driving safetysystems described in this section work aseffectively as possible.
ABS (Anti-lock Braking System)
General information
ABS regulates brake pressure in such a waythat the wheels do not lock when you brake.
This allows you to continue steering the vehi-cle when braking.
The%ABS warning lamp in the instrumentcluster lights up when the ignition is switchedon. It goes out when the engine is running.
ABS works from a speed of about 5 mph(8 km/h), regardless of road-surface condi-tions. ABS works on slippery surfaces, evenwhen you only brake gently.
Important safety notes
iObserve the "Important safety notes" sec-tion (Ypage 60).
GWARNING
If ABS is malfunctioning, the wheels could
lock when braking. The steerability and
braking characteristics would be severely
affected. There is an increased danger of
skidding and accidents.
Drive on carefully. Have ABS checked imme-
diately at a qualified specialist workshop.
When ABS is malfunctioning, other systems,including driving safety systems, will alsobecome inoperative. Observe the informationon the ABS warning lamp (Ypage 233) anddisplay messages which may be shown in theinstrument cluster (Ypage 204).
Braking
XIf ABS intervenes:continue to depress thebrake pedal vigorously until the braking sit-uation is over.
XTo make a full brake application:depressthe brake pedal with full force.
If ABS intervenes when braking, you will feel apulsing in the brake pedal.
The pulsating brake pedal can be an indicationof hazardous road conditions, and functions asa reminder to take extra care while driving.
Off-road ABS
An ABS system specifically suited to off-roadterrain is activated automatically once the off-road program is activated (Ypage 170).
At speeds below 20 mph (30 km/h), the frontwheels lock cyclically during braking. The dig-ging-in effect achieved in the process reduces
60Driving safety systems
Saf ety

Situation-dependent braking assis-
tance
General information
iObserve the "Important safety notes" sec-tion (Ypage 60).
With the help of the radar sensor system,Active Brake Assist can detect obstacles thatare in the path of your vehicle for an extendedperiod of time.
If Active Brake Assist detects a risk of collisionwith the vehicle in front, it calculates the brakepressure necessary to avoid a collision. If youapply the brakes forcefully, situation-depend-ent braking assistance adapts to the situationand automatically increases the brake pres-sure to a degree appropriate to the traffic sit-uation.
Situation-dependent braking assistance pro-vides braking assistance in hazardous situa-tions at speeds above 4 mph (7 km/h). It usesradar sensor technology to assess the trafficsituation.
Situation-dependent braking assistance iscapable of reacting to moving objects thathave already been detected as such at leastonce over the period of observation, up tovehicle speeds of around 155 mph(250 km/h).
Situation-dependent braking assistance canalso detect stationary objects, up to vehiclespeeds of around 44 mph (70 km/h).
XKeep the brake pedal depressed until theemergency braking situation is over.ABS prevents the wheels from locking.
The brakes will work normally again if:
Ryou release the brake pedal
Rthere is no longer any danger of a collision
Rno obstacle is detected in front of your vehi-cle
Situation-dependent braking assistance is thendeactivated.
Important safety notes
iObserve the "Important safety notes" sec-tion for driving safety systems (Ypage 60).
GWARNING
Active Brake Assist does not react:
Rto persons, bicycles, motorcycles or ani-
mals
Rto approaching vehicles
Rto cross traffic
Ron bends
As a result, Active Brake Assist cannot inter-
vene in all critical situations. There is a risk
of an accident.
Always pay careful attention to the traffic
situation and be prepared to brake.
GWARNING
Adaptive Brake Assist cannot always clearly
identify objects and complex traffic situa-
tions.
In such cases, Adaptive Brake Assist might:
Rintervene unnecessarily
Rnot intervene
There is a risk of an accident.
Always pay careful attention to the traffic
situation and be ready to brake. Terminate
the intervention in a non-critical driving sit-
uation.
Due to the nature of the system, complex butnon-critical driving conditions may also causeActive Brake Assist to intervene.
Even if Active Brake Assist is not available dueto a malfunction in the radar sensor system,the brake system is still available with fullbrake boosting effect and BAS.
ESP®(Electronic Stability Program)
General notes
iObserve the "Important safety notes" sec-tion (Ypage 60).
ESP®monitors driving stability and traction,i.e. power transmission between the tires andthe road surface.
If ESP®detects that the vehicle is deviatingfrom the direction desired by the driver, one ormore wheels are braked to stabilize the vehi-
Driving safety systems63
Safety
Z

Opening the fuel filler flap
CTo open the fuel filler flap
DTire pressure table

Bear in mind that at a speed of only 30 mph(approximately 50 km/h), the vehicle covers adistance of 44 ft (approximately 14 m) persecond.
Drive sensibly – save fuel
Observe the following tips to save fuel:
RThe tires should always be inflated to therecommended tire pressure.
RRemove unnecessary loads.
RRemove roof racks when they are not nee-ded.
RWarm up the engine at low engine speeds.
RAvoid frequent acceleration or braking.
RHave all maintenance work carried out asindicated by the service intervals in theMaintenance Booklet or by the service inter-val display.
Fuel consumption also increases when drivingin cold weather, in stop-start traffic and in hillyterrain.
Drinking and driving
GWARNING
Drinking and driving and/or taking drugs
and driving are very dangerous combina-
tions. Even a small amount of alcohol or
drugs can affect your reflexes, perceptions
and judgment.
The possibility of a serious or even fatal
accident is greatly increased when you drink
or take drugs and drive.
Do not drink or take drugs and drive or allow
anyone to drive who has been drinking or
taking drugs.
Emission control
GDANGER
Combustion engines emit poisonous
exhaust gases such as carbon monoxide.
Inhaling these exhaust gases is hazardous to
health and can result in poisoning. There is a
risk of fatal injury. Therefore, never leave the
engine running an enclosed space without
adequate ventilation.
Certain engine systems are designed to keepthe level of poisonous components in exhaustfumes within legal limits.
These systems only work at peak efficiency ifthey are serviced exactly in accordance withthe manufacturer's specifications. Always havework on the engine carried out at a qualifiedspecialist workshop. Mercedes-Benz recom-mends that you use an authorized Mercedes-Benz Center for this purpose. In particular,work relevant to safety or on safety-relatedsystems must be carried out at a qualified spe-cialist workshop.
The engine settings must not be changedunder any circumstances. Furthermore, allspecific service work must be carried out atregular intervals and in accordance with theMercedes-Benz service requirements. Detailscan be found in the Maintenance Booklet.
ECO display
The ECO display shows you how economicalyour driving style is. The ECO display assistsyou in achieving the most economical drivingstyle for the selected settings and prevailingconditions. Your driving style can significantlyinfluence the vehicle's consumption.
CAcceleration
DCoasting

RDrive slowly and evenly, if necessary at awalking pace.
REnsure that the wheels are in contact withthe ground at all times.
RDrive with extreme care on unfamiliar off-road routes where visibility is poor. Forsafety reasons, get out of the vehicle firstand survey the off-road route.
RCheck the depth of water before fording riv-ers and streams.
RWatch out for obstacles.
RTake care when turning on an uphill ordownhill slope or when driving across aslope. The vehicle could otherwise tip over.
RAlways keep the side windows and the pan-orama roof with power tilt/sliding panelclosed during the journey.
RDo not deviate from marked routes.
RDo not use the HOLD function when drivingoff-road, on steep uphill or downhill gradi-ents or on slippery or loose surfaces. TheHOLD function cannot hold the vehicle onsuch surfaces.
Checklist before driving off-road
XEngine oil level:check the engine oil leveland add oil if necessary.
When driving on steep gradients, the engineoil level must be sufficiently high to ensure acorrect oil supply in the vehicle.
XWheels and tires:check the tire treaddepth and tire pressure.
XCheck for damage and remove any foreignobjects, e.g. small stones, from the wheels/tires.
XReplace any missing valve caps.
XReplace dented or damaged wheels.
XRims:dented or bent rims can result in aloss of tire pressure and damage the tirebead. Before driving off-road, check thewheels and replace them if necessary.
Checklist after driving off-road
!If you detect damage to the vehicle afterdriving off-road, have the vehicle checkedimmediately at a qualified specialist work-shop.
XDeactivate off-road program (Ypage 132).
XDeactivate DSR (Ypage 169).
XClean the headlamps and rear lights andcheck for damage.
XClean the front and rear license plates.
XClean the wheels and tires with a water jetand remove any foreign objects.
XClean the wheels, wheel housings and thevehicle underside with a water jet; check forany foreign objects and damage.
XCheck whether twigs or other parts of plantshave become trapped. These increase therisk of fire and can damage fuel pipes, brakehoses or the air bellows of the axle jointsand propeller shafts.
XAfter the trip, examine without fail the entireundercarriage, wheels, tires, brakes, body-work structure, steering, chassis andexhaust system for damage.
XAfter driving in sand, mud, gravel, water orsimilar dirty conditions, have the followingchecked and cleaned:
Rbrake discs
Rwheels
Rbrake pads
Raxle joints
XIf you detect strong vibrations after off-roadtravel, check for foreign objects in thewheels and drive train and remove them ifnecessary. Foreign objects can disturb thebalance and cause vibrations.
Driving over poor road surfaces places greaterdemands on your vehicle than driving on nor-mal roads. After driving off-road, check thevehicle. This allows you to detect damagepromptly and reduce the risk of an accident toyourself and other road users.
Driving on sand
Observe the following rules when driving onsand:
RActivate the off-road program (Ypage 132).
RAvoid high engine speeds.
RUse the left-hand steering wheel paddleshifter to shift to a lower gear appropriate tothe terrain.
Drivingtips155
Driving an d parking
Z