ESP MERCEDES-BENZ GLA 2019 Workshop Manual

in front on the edge of the road because ofits narrow width. The distance to the vehiclein front will be too short.
RObstacles and stationary vehicles: ActiveDistance Assist DISTRONIC does not brakefor obstacles or stationary vehicles. If, forexample, the detected vehicle turns a cor-ner and an obstacle or stationary vehicle isrevealed, Active Distance Assist DISTRONICwill not brake for them.
RActive Distance Assist DISTRONIC may mis-takenly detect vehicles that are crossingyour lane. If you activate Active DistanceAssist DISTRONIC under the following condi-tions, the vehicle could pull away uninten-tionally:
-at traffic lights with crossing traffic, forexample
-if there is a vehicle in front, after a cross-ing, with the HOLD function activated
In such situations, brake if necessary. ActiveDistance Assist DISTRONIC will then be deacti-vated.
HOLD function
General notes
The HOLD function can assist the driver in thefollowing situations:
RWhen pulling away, especially on steepslopes
RWhen maneuvering on steep slopes
RWhen waiting in traffic
The vehicle is kept stationary without thedriver having to depress the brake pedal.
The braking effect is canceled and the HOLDfunction deactivated when you depress theaccelerator pedal to pull away.
Important safety notes
GWARNING
If the vehicle is only braked using the HOLD
function, the vehicle may roll away in the fol-
lowing situations when you leave the vehi-
cle:
Rif there is a malfunction in the system or
in the voltage supply
Rif the HOLD function is deactivated by
depressing the accelerator pedal or brake
pedal, e.g. by a vehicle occupant
There is a risk of an accident.
Always deactivate the HOLD function and
secure the vehicle against rolling away
before you leave it.
!When Active Distance Assist DISTRONICor the HOLD function is activated, the vehi-cle brakes automatically in certain situa-tions.
To avoid damage to the vehicle, deactivateActive Distance Assist DISTRONIC and theHOLD function in the following or similar sit-uations:
Rwhen towing the vehicle
Rin the car wash
Deactivate the HOLD function (Ypage 166).
Activation conditions
You can activate the HOLD function if:
Rthe vehicle is stationary
Rthe engine is running or if it has been auto-matically switched off by the ECO start/stop function
Rthe driver's door is closed or your seat beltis fastened
Rthe electric parking brake is released
RActive Distance Assist DISTRONIC is deacti-vated
Rthe transmission is in position[,^or\\on vehicles with automatic transmission
Driving systems165
Driving and parking
Z

Activating the HOLD function
XMake sure that the activation conditions aremet.
XDepress the brake pedal.
XQuickly depress the brake pedal furtheruntilCappears in the multifunction dis-play.The HOLD function is activated. You canrelease the brake pedal.
iIf depressing the brake pedal the first timedoes not activate the HOLD function, waitbriefly and then try again.
Deactivating the HOLD function
The HOLD function is deactivated automati-cally if:
Ryou accelerate. On vehicles with automatictransmission: only when the transmission isin position[or^.
Rthe transmission is in position]on vehi-cles with automatic transmission.
Ryou depress the brake pedal again with acertain amount of pressure untilCdisap-pears from the multifunction display.
Ryou activate Active Distance AssistDISTRONIC.
Ryou secure the vehicle using the electricparking brake.
iAfter a time, the electric parking brakesecures the vehicle and relieves the servicebrake.
When the HOLD function is activated, thetransmission is automatically shifted to posi-tion]if:
Rthe driver's seat belt is not fastened and thedriver's door is open
Rthe engine is switched off, unless it is auto-matically switched off by the ECO start/stop function
The electric parking brake secures the vehicleautomatically if the HOLD function is activatedwhen the vehicle is stationary and:
Ra system malfunction occurs
Rthe power supply is insufficient
Start-off Assist (except Mercedes-
AMG vehicles)
Important safety notes
GWARNING
If you use start-off assist, individual wheels
may start to spin and the vehicle may skid. If
ESP®is deactivated, there is a greater dan-
ger of skidding and having an accident.
Make sure that no persons or obstacles are
in the vicinity of the vehicle.
Start-off assist enables optimum accelerationfrom a standstill. For this, a suitably high-griproad surface is required and the vehicle andtires must be in good working order.
Do not activate start-off assist on public roads.
Observe the safety notes on driving safety sys-tems (Ypage 60).
Be sure to read the safety notes and informa-
tion on ESP®(Ypage 63).
Activating start-off assist
XDeactivate ESP®(Ypage 197).
XTurn the steering wheel to the straight-ahead position.
XFirmly depress the brake pedal with your leftfoot and keep it depressed.
XShift the transmission to position[.
XUse the DYNAMIC SELECT button to selecttheSdrive program (Ypage 132).
XQuickly depress the accelerator pedal fully.
XTake your foot off the brake, but keep theaccelerator pedal depressed.The vehicle pulls away at maximum acceler-ation.
iActivate ESP®as soon as the acceleration
process has ended. ESP®will otherwise notbe able to stabilize the vehicle if the vehiclestarts to skid or a wheel starts to spin.
166Driving systems
Driving and pa rking

Canceling start-off assist
XRemove your foot from the acceleratorpedal.
XReactivate ESP®.
RACE START (Mercedes-AMG vehi-
cles)
Important safety notes
iRACE START must not be used on normalroads. RACE START must only be activatedand used on dedicated road circuits, outsideof public road use.
iRACE START is only available inMercedes‑AMG vehicles.
GWARNING
If you use RACE START, individual tires may
start to spin and the vehicle could skid.
Depending on the selected ESP®mode,
there is an increased risk of skidding and
having an accident. Make sure that no per-
sons, animals or obstacles are within range
of the vehicle.
RACE START enables optimal accelerationfrom a standing start. For this, a suitably high-grip road surface is required and the vehicleand tires must be in good working order.
iObserve the safety notes on driving safetysystems (Ypage 60).
Be sure to read the safety notes and infor-
mation on ESP®(Ypage 63).
Conditions for activation
You can activate RACE START if:
Rthe doors, hood and the trunk lid are closed.
Rthe engine is running and the transmission,all-wheel drive clutch and the engine are atoperating temperature.
Rthe steering wheel is in the straight-aheadposition.
Rthe vehicle is stationary and the brake pedalis depressed (left foot).
Rthe transmission is in position[.
Rdrive programS,S+orRACEis selected(Ypage 133)
Activating RACE START
XDepress the brake pedal with your left footand keep it depressed.
XPull and hold both steering wheel paddleshifters.
XTheRACE START Confirm: Paddle UPRACE START Confirm: Paddle UPCancel: Paddle DOWNCancel: Paddle DOWNmessage appears inthe multifunction display.
XRelease both steering wheel paddle shifters.
iIf the activation conditions are no longerfulfilled, RACE START is canceled. TheRACE START Not Possible See Opera‐RACE START Not Possible See Opera‐tor's Manualtor's Manualmessage appears in the mul-tifunction display.
XTo cancel:pull the left steering wheel pad-dle shifter (Ypage 140).
or
XTo confirm:pull the right steering wheelpaddle shifter (Ypage 140).TheRACE START Available DepressRACE START Available Depressgas pedalgas pedalmessage appears in the multi-function display.
iIf you do not depress the accelerator pedalwithin a few seconds, RACE START is can-celed. The multifunction display shows theRACE START CanceledRACE START Canceledmessage.
XFully depress the accelerator pedal.The engine speed is increased.
TheRACE START Release brake toRACE START Release brake tostartstartmessage appears in the multifunctiondisplay.
iIf you do not release the brake pedalwithin a short time, RACE START will be can-celed. The multifunction display shows theRACE START CanceledRACE START Canceledmessage.
XTake your foot off the brake, but keep theaccelerator pedal depressed.The vehicle pulls away at maximum acceler-ation.
TheRACE START ActiveRACE START Activemessage appearsin the multifunction display.
RACE START is deactivated when the vehiclereaches a speed of approximately 50 km/h.
RACE START is deactivated immediately if yourelease the accelerator pedal during RACESTART or if any of the activation conditions areno longer fulfilled. TheRACE START Not Pos‐RACE START Not Pos‐sible See Operator's Manualsible See Operator's ManualorRACERACESTART CanceledSTART Canceledmessage appears in the mul-tifunction display.
Driving systems167
Driving and parking
Z

iIf RACE START is used repeatedly within ashort period of time, it is only availableagain after the vehicle has been driven acertain distance.
AMG adaptive sport suspension sys-
tem
General notes
The electronically controlled damping systemworks continuously. This improves drivingsafety and ride comfort.
The damping is tuned individually to eachwheel and depends on:
Ryour driving style, e.g. sporty
Rthe road surface condition, e.g. bumps
Ryour individual selection ofSportorCom-fort
The suspension setting is adjusted using thecorresponding button in the center console.
iThe mode can also be set using the AMGDYNAMIC SELECT controller (Ypage 133).
Each time you start the engine with the Smart-Key or the Start/Stop button,Comfortmodeis activated. For further information aboutstarting the engine, see (Ypage 125).
Sport mode
The firmer setting of the suspension tuning inSportmode ensures even better contact withthe road. Select this mode when employing asporty driving style, e.g. on winding countryroads.
XPress buttonC.Indicator lampDlights up. You have selec-tedSportmode.
TheAMG Suspension System SPORTAMG Suspension System SPORTmes-sage appears in the multifunction display.
Comfort mode
InComfortmode, the driving characteristicsof your vehicle are more comfortable. Selectthis mode if you favor a more comfortable driv-ing style, but also when driving fast on straightroads, e.g. highways.
XPress buttonCagain so that indicatorlampDgoes out.You have selectedComfortmode.
TheAMG Suspension System COMFORTAMG Suspension System COMFORTmessage appears in the multifunction dis-play.
4MATIC
!Never tow the vehicle with one axle raised.This may damage the differential. Damageof this sort is not covered by the Mercedes-Benz Limited Warranty. All wheels mustremain either on the ground or be fullyraised. Observe the instructions for towingthe vehicle with all wheels in full contactwith the ground.
4MATIC, together with ESP®, improves thetraction of your vehicle whenever a drivewheel spins due to insufficient grip.
If you fail to adapt your driving style, 4MATICcan neither reduce the risk of accident noroverride the laws of physics. 4MATIC cannottake account of road, weather and traffic con-ditions. 4MATIC is only an aid. You are respon-sible for the distance to the vehicle in front, forvehicle speed, for braking in good time and forstaying in your lane.
If a drive wheel spins due to insufficient grip:
ROnly depress the accelerator pedal as far asnecessary when pulling away.
RAccelerate less when driving.
iIn wintry driving conditions, the maximumeffect of 4MATIC can only be achieved if youuse winter tires (M+S tires), with snowchains if necessary.
168Driving systems
Driving and parking

DSR
General notes
iDSR (Downhill Speed Regulation) is onlyavailable for vehicles with the ON&OFF-ROAD package.
DSR is an aid to assist you when driving down-hill. It keeps the speed of travel at the speedselected on the on-board computer. Thesteeper the downhill gradient, the greater theDSR braking effect on the vehicle. When driv-ing on flat stretches of road or on an uphillgradient, the DSR braking effect is minimal ornonexistent.
DSR controls the vehicle’s speed when it isactivated and the transmission is in position[,^or\\. You can drive at a higher or alower speed than that set on the on-boardcomputer at any time by accelerating or brak-ing.
Important safety notes
GWARNING
If the speed driven and the set speed devi-
ate and you activate DSR on a slippery road
surface, the wheels may lose traction. There
is an increased danger of skidding and acci-
dents.
Before switching DSR on, please take into
consideration the road surface and the dif-
ference between driving speed and the set
speed.
If you fail to adapt your driving style, DSR canneither reduce the risk of accident nor over-ride the laws of physics. DSR cannot takeaccount of road, weather and traffic condi-tions. DSR is only an aid. You are responsiblefor the distance to the vehicle in front, forvehicle speed, for braking in good time and forstaying in your lane.
You are always responsible for keeping controlof the vehicle and for assessing whether thedownhill gradient can be managed. DSR maynot always be able to keep to the set speed,depending on road surface and tire conditions.Select a set speed suitable for the prevailingconditions and when necessary, apply thebrakes manually.
Further information about "Driving off-road"(Ypage 153).
Activating/deactivating DSR
If you activate DSR and no speed has beenset, the vehicle decelerates to 4 mph (Canada:6 km/h).
You can only activate DSR when driving atspeeds below 19 mph (Canada: 30 km/h).
Activating DSR
XPress buttonC.Indicator lampDlights up.
The status indicator in the multifunction dis-play shows, e.g.DSR 6 km/hDSR 6 km/h.
If the current vehicle speed is too high, theDSR symbol appears on the multifunction dis-play. You will also see the message:Max.Max.Speed 30 km/hSpeed 30 km/h.
If you enter or exit a parking space usingActive Parking Assist, and press buttonC,indicator lampDflashes. DSR can then notbe switched on.
Deactivating DSR
XPress buttonC.Indicator lampDgoes out.
The DSR symbol appears in the multifunc-tion display with theOffOffmessage.
DSR is deactivated automatically if you drivefaster than 22 mph (Canada: 35 km/h). TheDSR symbol appears in the multifunction dis-play along with theOffOffmessage. You alsohear a warning tone.
Driving systems169
Driving an d parking
Z

Display in the assistance graphic
XSelect theAssistance GraphicAssistance Graphicfunctionusing the on-board computer (Ypage 197).When DSR is activated symbolCappearsin the assistance graphics display.
Changing the set speed while the vehi-
cle is in motion
When DSR is activated, you can change theset speed to a value between 2 mph and11 mph (Canada: between 4 km/h and18 km/h) while the vehicle is in motion.
XTo increase or decrease in 1 mph incre-ments (Canada: 1 km/h increments):briefly press the cruise control lever to thepressure point, upCfor a higher set speedor downDfor a lower set speed.The set value appears in the status indicatorof the multifunction display.
Off-road program
General notes
iThe Off-road program is only available onvehicles with the ON&OFFROAD package.
The off-road program assists you in driving off-road. The engine's performance characteris-tics and the gearshifting characteristics of theautomatic transmission are adapted for this
purpose. ABS, ESP®and ETS programs espe-cially adapted to off-road driving are also acti-vated.
Do not use the off-road program on roads thatare snow-covered or icy or if you have moun-ted snow chains on your vehicle.
For information on driving off-road, see(Ypage 153).
To activate/deactivate the off-road
program
XPress DYNAMIC SELECT buttonC(Ypage 132) repeatedly until theOff-roaddrive program is selected.The status icon of the Off-road program isshown in the multifunction display.
170Driving systems
Driving an d parking

Problems with Parking Assist PARKTRONIC
ProblemPossible causes/consequences andPPSolutions
Only the red segmentsin the Parking AssistPARKTRONIC warningdisplays are lit. You alsohear a warning tone forapproximately two sec-onds.
Parking AssistPARKTRONIC is thendeactivated and theindicator lamp on thePARKTRONIC buttonlights up.
Parking Assist PARKTRONIC has malfunctioned and has been deac-tivated.
XIf problems persist, have Parking Assist PARKTRONIC checked ata qualified specialist workshop.
Only the red segmentsin the Parking AssistPARKTRONIC warningdisplays are lit. ParkingAssist PARKTRONIC isthen deactivated.
The Parking Assist PARKTRONIC sensors are dirty or there is inter-ference.
XClean the Parking Assist PARKTRONIC sensors (Ypage 282).
XSwitch the ignition back on.
The problem may be caused by an external source of radio or ultra-sound waves.
XCheck to see if Parking Assist PARKTRONIC works at a differentlocation.
Active Parking Assist
General notes
Active Parking Assist is an electronic parkingaid with ultrasound. It measures the road onboth sides of the vehicle. A parking symbolindicates a suitable parking space. Activesteering intervention and brake applicationcan assist you during parking and when exitinga parking space. You can also still use ParkingAssist PARKTRONIC (Ypage 171).
Important safety notes
Active Parking Assist is merely an aid. It is nota replacement for your attention to your imme-diate surroundings. You are always responsi-ble for safe maneuvering, parking and exiting aparking space. Make sure that there are nopersons, animals or objects in the maneuver-ing area when you are maneuvering or parking.
When Parking Assist PARKTRONIC is deactiva-ted, Active Parking Assist is also unavailable.
GWARNING
While parking or pulling out of a parking
space, the vehicle swings out and can drive
onto areas of the oncoming lane. This could
cause you to collide with other road users or
objects. There is a risk of an accident.
Pay attention to other road users or objects.
Stop the vehicle if necessary or cancel the
Active Parking Assist parking procedure.
!If they cannot be avoided, drive overobstacles such as curbs slowly and at anobtuse angle. Otherwise, you may damagethe wheels or tires.
Active Parking Assist may possibly indicateparking spaces which are not suitable for park-ing, for example:
Rwhere parking or stopping is prohibited
Rin front of driveways or entrances and exits
Ron unsuitable surfaces
174Driving systems
Driving and parking

Rthat are parallel to the direction of traveland at least 39.5 in (1.0m) longer than yourvehicle
Rat right angles to the direction of travel andat least 39.5 in (1.0m) widerthan your vehi-cle
When driving at speeds below 19 mph(30 km/h), you will see parking symbolDasa status indicator in the instrument cluster.When a parking space has been detected, anarrow towards the right or the left alsoappears. By default, Active Parking Assist onlydisplays parking spaces on the front-passenger side. Parking spaces on the driver'sside are displayed as soon as the turn signalon the driver's side is activated. When parkingon the driver's side, this must remain activateduntil you confirm the use of Active ParkingAssist by pressing thevbutton on the mul-tifunction steering wheel. The system automat-ically determines whether the parking space isparallel or at right-angles to the direction oftravel.
A parking space is displayed while you aredriving past it, and until you are approximately50 ft (15m) away from it.
Parking
GWARNING
If you leave the driver's seat when the vehi-
cle is only being braked by the Parking Pack-
age with rear view camera, it could roll
away:
Rif there is a malfunction in the system or
in the voltage supply
Rif the electrical system in the engine com-
partment, the battery or the fuses are
tampered with
Rif the battery is disconnected
Rif the vehicle is accelerated, e.g. by a vehi-
cle occupant
There is a risk of an accident.
Before leaving the vehicle, always secure it
against rolling away.
iIf Active Parking Assist detects obstacles,Active Parking Assist brakes automaticallywhile the vehicle is parking. You are respon-sible for braking in good time.
XStop the vehicle when the parking spacesymbol shows the desired parking space inthe instrument cluster.
XShift the transmission to position^.TheStart Parking Assist?Start Parking Assist?Yes: OKYes: OKNo:No:8message appears on the multifunctiondisplay.
XTo cancel the procedure:press the8button on the multifunction steering wheelor pull away.
or
XTo park using Active Parking Assist:press thevbutton on the multifunctionsteering wheel.TheParking Assist Active Acceler‐Parking Assist Active Acceler‐ate and Brakeate and BrakeObserve SurroundingsObserve Surroundingsmessage appears on the multifunction dis-play.
XLet go of the multifunction steering wheel.
XBack up the vehicle, being ready to brake atall times. When backing up, drive at a speedbelow approximately 6 mph (10 km/h). Oth-erwise, Active Parking Assist will be can-celed.Active Parking Assist brakes the vehicle to astandstill when the vehicle approaches therear border of the parking space.
Maneuvering may be required in tight park-ing spaces.
TheParking Assist Active SelectParking Assist Active SelectDObserve SurroundingsDObserve Surroundingsmessage appearson the multifunction display.
XShift the transmission to position[whilethe vehicle is stationary.Active Parking Assist immediately steers inthe other direction.
TheParking Assist Active Acceler‐Parking Assist Active Acceler‐ate and Brakeate and BrakeObserve SurroundingsObserve Surroundingsmessage appears on the multifunction dis-play.
iYou will achieve the best results by waitingfor the steering procedure to completebefore pulling away.
XDrive forwards and be ready to brake at alltimes.Active Parking Assist brakes the vehicle to astandstill when the vehicle approaches thefront border of the parking space.
Maneuvering may be required in tight park-ing spaces.
176Driving systems
Driving an d parking

TheParking Assist Active Select RParking Assist Active Select RObserve SurroundingsObserve Surroundingsmessage appears onthe multifunction display.
As soon as the parking procedure is complete,theActive Parking Assist FinishedActive Parking Assist Finishedmes-sage appears and a warning tone sounds. Thevehicle is now parked.
The vehicle is kept stationary without thedriver having to depress the brake pedal. Thebraking effect is canceled when you depressthe accelerator pedal.
Active Parking Assist no longer supports youwith steering interventions and brake applica-tions. When Active Parking Assist is finished,you must steer and brake again yourself.Active Parking Assist is still available.
Parking tips:
RThe way your vehicle is positioned in theparking space after parking is dependent onvarious factors. These include the positionand shape of the vehicles parked in frontand behind it and the conditions of the loca-tion. It may be the case that Active ParkingAssist guides you too far into a parkingspace, or not far enough into it. In somecases, it may also lead you across or ontothe curb. If necessary, cancel the parkingprocedure with Active Parking Assist.
RYou can also preselect transmission position[. The vehicle redirects and does not driveas far into the parking space. Should thetransmission change take place too early,the parking procedure is canceled. A sensi-ble parking position can no longer be ach-ieved from this position.
Exiting a parking space
In order that Active Parking Assist can supportyou when exiting the parking space:
Ryou need to have parked using Active Park-ing Assist.
Rthe border of the parking space must behigh enough at the front and the rear. Acurb stone is too small, for example.
Rthe border of the parking space must not betoo wide, as the position of the vehicle mustnot exceed an angle of 45° to the startingposition as it is maneuvered into the parkingspace.
Ra maneuvering distance of at least 3.3 ft(1.0 m) must be available.
Active Parking Assist can only assist you withexiting a parking space if you have parked thevehicle parallel to the direction of travel usingActive Parking Assist.
iIf Active Parking Assist detects obstacles,Active Parking Assist brakes automaticallywhile the vehicle is exiting the parkingspace. You are responsible for braking ingood time.
XStart the engine.
XRelease the electric parking brake.
XSwitch on the turn signal in the directionyou will drive out of the parking space.
XShift the transmission to position[or^.TheStart Parking Assist?Start Parking Assist?Yes: OKYes: OKNo:No:8message appears on the multifunctiondisplay.
XTo cancel the procedure:press the8button on the multifunction steering wheelor pull away.
or
XTo exit a parking space using ActiveParking Assist:press thevbutton onthe multifunction steering wheel.TheParking Assist Active Acceler‐Parking Assist Active Acceler‐ate and Brakeate and BrakeObserve SurroundingsObserve Surroundingsmessage appears on the multifunction dis-play.
XLet go of the multifunction steering wheel.
XPull away, being ready to brake at all times.Do not exceed a maximum speed of approx-imately 6 mph (10 km/h)when exiting aparking space. Otherwise, Active ParkingAssist will be canceled.
XDepending on the message or as required,shift the transmission to position[or^.Active Parking Assist immediately steers inthe other direction. TheParking AssistParking AssistActive Accelerate and BrakeActive Accelerate and BrakeObserveObserveSurroundingsSurroundingsmessage appears on themultifunction display.
iYou will achieve the best results by waitingfor the steering procedure to completebefore pulling away.
If you back up after activation, the steeringwheel is moved to the straight-ahead posi-tion.
XDrive forwards and reverse as prompted bythe Active Parking Assist warning displays,several times if necessary.
Driving systems177
Driving and parking
Z

Once you have exited the parking space com-pletely, the steering wheel is moved to thestraight-ahead position. You hear a tone andtheActive Parking Assist FinishedActive Parking Assist Finishedmes-sage appears on the multifunction display. Youwill then have to steer and merge into trafficon your own. Active Parking Assist is still avail-able. You can take over the steering before thevehicle has exited the parking space com-pletely. This is useful, for example when yourecognize that it is already possible to pull outof the parking space.
Canceling Active Parking Assist
XStop the movement of the multifunctionsteering wheel or steer yourself.Active Parking Assist will be canceled atonce. TheActive Parking Assist Can‐Active Parking Assist Can‐celedceledmessage appears in the multifunctiondisplay.
or
XPress the PARKTRONIC button(Ypage 173).Active Parking Assist is switched off andActive Parking Assist is immediately can-celed. TheActive Parking Assist Can‐Active Parking Assist Can‐celedceledmessage appears in the multifunctiondisplay.
Active Parking Assist is canceled automaticallyif:
Rthe electric parking brake is engaged
Rtransmission position]is selected
Rparking using Active Parking Assist is nolonger possible
Ryou are driving faster than 6 mph (10 km/h)
Ra wheel spins, ESP®intervenes or fails. Insuch cases the