2018 MERCEDES-BENZ GLA SUV parking sensors

Blind Spot AssistActivating/deactivating (on-
board computer) ............................ 195
Display message ............................ 217
Notes/function .............................. 181
Blower
see Climate control
Bluetooth
®
Searching for a mobile phone ........ 243
Searching for a mobile phone
(device manager) ........................... 244
see also Digital Operator's Man-
ual .................................................. 239
Telephony ...................................... 243
Brake Assist System
see BAS (Brake Assist System)
Brake assistance
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 206
Notes ............................................. 331
Brake force distribution
see EBD (electronic brake force
distribution)
Brake lamp
Replacing bulbs ............................. 107
Brake lamps
Display message ............................ 211
Brakes
ABS .................................................. 60
BAS .................................................. 61
Brake fluid (notes) ......................... 331
Braking assistance appropriate to
the situation ..................................... 62
Display message ............................ 201
EBD .................................................. 67
Hill start assist ............................... 127
HOLD function ............................... 162
Important safety notes .................. 148
Maintenance .................................. 149
Parking brake ................................ 144
Riding tips ...................................... 148
Warning lamp ................................. 229
Braking assistance appropriate to
the situation
Function/notes ................................ 62
Breakdown assistance
Where will I find...? ........................ 282 see Flat tire
see Tow-starting
see Towing away
Brightness control (instrument
cluster lighting) ................................... 32
Buttons on the steering wheel ......... 186
C
Calling up a malfunction
see Display messages
Car
see Vehicle
Care
Car wash ........................................ 274
Carpets .......................................... 281
Display ........................................... 279
Exhaust pipe .................................. 279
Exterior lights ................................ 278
Gear or selector lever .................... 280
Interior ........................................... 279
Matte finish ................................... 276
Notes ............................................. 274
Paint .............................................. 276
Plastic trim .................................... 279
Power washer ................................ 275
Rear view camera .......................... 278
Roof lining ...................................... 281
Seat belt ........................................ 280
Seat cover ..................................... 280
Sensors ......................................... 278
Steering wheel ............................... 280
Trim pieces .................................... 280
Washing by hand ........................... 275
Wheels ........................................... 277
Windows ........................................ 277
Wiper blades .................................. 278
Wooden trim .................................. 280
Cargo compartment enlargement ... 250
Cargo compartment floor
Important safety notes .................. 252
Opening/closing ............................ 253
Stowage well (under) ..................... 252
Cargo tie down rings ......................... 252
CD
see also Digital Operator's Man-
ual .................................................. 239
CD player (on-board computer) ........ 192
6Index

BAS (Brake Assist System)
General information
BAS operates in emergency braking situations.
If you depress the brake pedal quickly, BAS
automatically boosts the braking force, thus
shortening the stopping distance.
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 60).
GWARNING
If BAS is malfunctioning, the braking distance
in an emergency braking situation is
increased. There is a risk of an accident.
In an emergency braking situation, depress
the brake pedal with full force. ABS prevents
the wheels from locking.
Braking
XKeep the brake pedal firmly depressed until
the emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes will function as usual once you
release the brake pedal. BAS is deactivated.
Active Brake Assist
General information
iObserve the "Important safety notes" sec-
tion (Ypage 60).
Active Brake Assist consists of a distance warn-
ing function with an autonomous braking func-
tion and situation-dependent braking assis-
tance
Active Brake Assist can help you to minimize the
risk of a collision with the vehicle traveling in
front or reduce the effects of such a collision.
If Active Brake Assist detects that there is a risk
of collision, you will be warned visually and
acoustically. If you do not react to the visual and
audible collision warning, autonomous braking
can be initiated in critical situations. If you apply
the brake yourself in a critical situation, Active
Brake Assist supports you with situation-
dependent braking assistance.
Important safety notes
Detection of hazardous situations can be par-
ticularly impaired if:
Rthere is dirt on the sensors or anything else
covering the sensors
Rthere is snow or heavy rain
Rthere is interference by other radar sources
Rthere are strong radar reflections, for exam-
ple in parking garages
Ra narrow vehicle is traveling in front, e.g. a
motorbike
Ra vehicle is traveling in front on a different line
Ryou are driving a new vehicle or servicing on
the Active Brake Assist system has just been
carried out
Observe the important safety notes in the
"Breaking-in notes" section (
Ypage 123).
Following damage to the front end of the vehicle,
have the configuration and operation of the
radar sensor checked at a qualified specialist
workshop. This also applies to collisions at low
speeds where no visible damage to the front of
the vehicle is apparent.
Activating/deactivating
Active Brake Assist is active after every ignition
cycle.
You can activate or deactivate Active Brake
Assist (
Ypage 194) in the on-board computer.
When deactivated, the distance warning func-
tion and the autonomous braking function are
also deactivated.
If Active Brake Assist is deactivated, the æ
symbol appears in the assistance graphic dis-
play.
If you have activated DSR, Active Brake Assist is
deactivated. For further information on DSR,
see (
Ypage 166).
Distance warning function
General information
The distance warning function can help you to
minimize the risk of a front-end collision with a
vehicle ahead or reduce the effects of such a
collision. If the distance warning function
detects that there is a risk of a collision, you will
be warned visually and acoustically.
Driving safety systems61
Safety
Z

XSelect theAssistance Graphicfunction
using the on-board computer (Ypage 194).
When the off-road program is activated, sym-
bol :appears in the assistance graphic dis-
play.
Driving dynamics display (vehicles
with the ON&OFFROAD package)
General notes
Using the driving dynamics display in the multi-
media system display, you can see the drive
program you have selected as well as additional
information on the vehicle's operating status.
:Drive program selected
;Accelerator pedal position shown in %
=Brake pedal position shown in %
?DSR status indicator
AAngle of inclination
BSteering angle
CUphill or downhill gradient as a percentage
The accelerator and brake pedal position is only available on certain Mercedes-AMG vehicles.
The DSR status indicator as well as the uphill or
downhill gradient as a percentage are not avail-
able on Mercedes-AMG vehicles.
Activating the driving dynamics display
XSwitch on the multimedia system; see the
separate multimedia system operating
instructions.
XPress button :.
The driving dynamics display appears in the
multimedia system display.
Parking Assist PARKTRONIC
Important safety notes
Parking Assist PARKTRONIC is an electronic
parking aid with ultrasound. It monitors the area
around your vehicle using six sensors in the
front bumper and six sensors in the rear
bumper. Parking Assist PARKTRONIC visually
and audibly indicates the distance between your
vehicle and an object.
Parking Assist PARKTRONIC is only an aid. It is
not a replacement for your attention to your
immediate surroundings. You are always
responsible for safe maneuvering, parking and
exiting a parking space. When maneuvering and
parking, make sure that there are no obstacles
such as persons, animals or objects in the
maneuvering area.
!When parking, pay particular attention to
objects above or below the sensors, such as
flower pots or trailer drawbars. Parking Assist
PARKTRONIC does not detect such objects
when they are in the immediate vicinity of the vehicle. You could damage the vehicle or the
objects.
The sensors may not detect snow and other
objects that absorb ultrasonic waves.
Ultrasonic sources such as an automatic car
wash, the compressed-air brakes of a truck or
168Driving systems
Driving and parking

a pneumatic drill could cause Parking Assist
PARKTRONIC to malfunction.
Parking Assist PARKTRONIC may not function
correctly on uneven terrain.
Parking Assist PARKTRONIC is activated auto-
matically when you:
Rswitch on the ignition
Rshift the transmission to position h,kor
i
Parking Assist PARKTRONIC is deactivated at
speeds above 11 mph (18 km/h). It is reactiva-
ted at lower speeds.
Range of the sensors
General notes
Parking Assist PARKTRONIC does not take into
account obstacles located:
Rbelow the detection range, such as persons,
animals or objects
Rabove the detection range, e.g. overhanging
loads, tail sections or loading ramps of trucks
:Sensors in the front bumper, left-hand side
(example)
The sensors must be free from dirt, ice or slush.
They can otherwise not function correctly. Clean
the sensors regularly, taking care not to scratch
or damage them (
Ypage 278).
Range
:Detection range of front sensors
;Detection range of rear sensors
Front sensors
CenterApprox. 40 in (approx.
100 cm)
CornersApprox. 24 in (approx.
60 cm)
Rear sensors
CenterApprox. 48 in (approx.
120 cm)
CornersApprox. 32 in (approx.
80 cm)
Minimum distance
CenterApprox. 8 in (approx. 20 cm)
CornersApprox. 6 in (approx. 15 cm)
If an obstacle is detected within this range, the
relevant warning displays light up and a warning
tone sounds. If the distance falls below the min-
imum, the distance may no longer be shown.
Driving systems169
Driving and parking
Z

Warning displays
:Segments on the left-hand side of the vehi-
cle
;Segments on the right-hand side of the vehi-cle
=Segments showing operational readiness
The warning displays show the distance
between the sensors and the obstacle. The
warning display for the front area is located on
the dashboard above the center air vents. The
warning display for the rear area is located on
the headliner in the rear compartment.
The warning display for each side of the vehicle
is divided into five yellow and two red segments.
Parking Assist PARKTRONIC is operational if yel-
low segments showing operational readiness =
light up.
The gear lever position or the transmission posi-
tion of the automatic transmission and the
direction in which the vehicle is rolling deter-
mine which warning display is active when the
engine is running.
Transmission posi-
tionWarning display
hFront area activated
k, ior the vehicle
is rolling backwardsRear and front areas
activated
jNo areas activated
One or more segments light up as the vehicle
approaches an obstacle, depending on the vehi-
cle's distance from the obstacle. In addition,
warning tones are issued.
When the distance to the obstacle is sufficient,
you will hear an intermittent warning tone. The
shorter the distance to the obstacle, the shorter
the frequency of the intermittent warning tones
becomes. When the minimum distance is
reached, you hear a continuous warning tone.
Deactivating or activating Parking
Assist PARKTRONIC
:Indicator lamp
;Deactivates or activates Parking Assist
PARKTRONIC
If indicator lamp :is lit, Parking Assist
PARKTRONIC is deactivated.
iParking Assist PARKTRONIC is automati-
cally activated when you turn the SmartKey to position 2in the ignition lock.
170Driving systems
Driving and parking

Problems with Parking Assist PARKTRONIC
ProblemPossible causes/consequences andMSolutions
Only the red segments in
the Parking Assist
PARKTRONIC warning
displays are lit. You also
hear a warning tone for
approximately two sec-
onds.
Parking Assist
PARKTRONIC is then
deactivated and the indi-
cator lamp on the
PARKTRONIC button
lights up.Parking Assist PARKTRONIC has malfunctioned and has been deacti-
vated.
XIf problems persist, have Parking Assist PARKTRONIC checked at a
qualified specialist workshop.
Only the red segments in
the Parking Assist
PARKTRONIC warning
displays are lit. Parking
Assist PARKTRONIC is
then deactivated.The Parking Assist PARKTRONIC sensors are dirty or there is inter-
ference.
XClean the Parking Assist PARKTRONIC sensors (Ypage 278).
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 different
location.
Parking Pilot
General notes
Parking Pilot is an electronic parking aid with
ultrasound. It measures the road on both sides
of the vehicle. A parking symbol indicates a suit-
able parking space. Active steering intervention
and brake application can assist you during
parking and when exiting a parking space. Park-
ing Assist PARKTRONIC is also available
(
Ypage 168).
Important safety notes
Parking Pilot is only an aid. It is not a replace-
ment for your attention to your immediate sur-
roundings. You are always responsible for safe
maneuvering, parking and exiting a parking
space. When maneuvering and parking, make
sure that there are no obstacles such as per-
sons, animals or objects in the maneuvering
area.
When Parking Assist PARKTRONIC is deactiva-
ted, Parking Pilot 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
result in a collision with another road user.
There is a risk of an accident.
Pay attention to other road users. Stop the
vehicle if necessary or cancel the Parking Pilot
parking procedure.
!If they cannot be avoided, drive over obsta-
cles such as curbs slowly and at an obtuse
angle. Otherwise, you may damage the
wheels or tires.
Parking Pilot may also display spaces not suita-
ble for parking, e.g.:
Rwhere parking or stopping is prohibited
Rin front of driveways or entrances and exits
Ron unsuitable surfaces
Driving systems171
Driving and parking
Z

sufficient distance to the side for other road
users and obstacles.
iUSA only:
This device has been approved by the FCC as
a "Vehicular Radar System". The radar sensor
is intended for use in an automotive radar
system only. Removing, tampering with, or
altering the device will void any warranties,
and is not permitted by the FCC. Do not tam-
per with, alter, or use in any non-approved
way.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
Radar sensors
The radar sensors for Blind Spot Assist are inte-
grated into the rear bumper. Make sure that the bumpers are free from dirt, ice or slush. The
sensors must not be covered, for example by
cycle racks or overhanging loads. Following a
severe impact or in the event of damage to the
bumpers, have the function of the radar sensors
checked at a qualified specialist workshop.
Blind Spot Assist may no longer work properly.
Monitoring range of the sensors
In particular, the detection of obstacles can be
impaired if:
Rthere is dirt on the sensors or anything else
covering the sensors
Rthere is poor visibility, e.g. due to fog, heavy
rain or snow
Ra narrow vehicle traveling in front, e.g. a
motorbike or bicycle
Rthe road has very wide lanes
Rthe road has narrow lanes
Ryou are not driving in the middle of the lane
Rthere are barriers or other road boundaries
Vehicles in the monitoring range are then not
indicated.
Blind Spot Assist monitors the area up to 10 ft
(3 m) behind your vehicle and directly next to it.
If the lanes are narrow, vehicles driving in the
lane beyond the lane next to your vehicle may be
indicated, especially if the vehicles are not driv-
ing in the middle of their lane. This may be the
case if the vehicles are driving on the inner side
of their lane. Due to the nature of the system:
Rwarnings may be issued in error when driving
close to crash barriers or similar solid lane
borders.
Rwarnings may be interrupted when you are
driving alongside particularly long vehicles,
such as trucks, for a prolonged time.
Warning display
:Warning display
Blind Spot Assist is not active at speeds below
approximately 20 mph (30 km/h). Vehicles in
the monitoring range are then not indicated.
When Blind Spot Assist is activated, indicator
lamp :in the exterior mirrors lights up yellow
at speeds of up to 20 mph (30 km/h). At speeds
above 20 mph (30 km/h), the indicator lamp
goes out and Blind Spot Assist is operational.
If a vehicle is detected within the blind spot
monitoring range at speeds above 20 mph
(30 km/h), warning lamp :on the correspond-
ing side lights up red. This warning is always
emitted when a vehicle enters the blind spot
monitoring range from behind or from the side.
When you overtake a vehicle, the warning only
occurs if the difference in speed is less than
7 mph (12 km/h).
The yellow indicator lamp goes out if reverse
gear is engaged. In this event, Blind Spot Assist
is no longer active.
The brightness of the indicator/warning lamps
is adjusted automatically according to the ambi-
ent light.
Collision warning
If a vehicle is detected in the monitoring range of
Blind Spot Assist and you switch on the corre-
sponding turn signal, a double warning tone
sounds. Red warning lamp :flashes. If the turn
signal remains on, vehicles detected are indica-
182Driving systems
Driving and parking

Display messagesPossible causes/consequences andMSolutions
TirePress.Sen ‐sor(s) Missin gUSAonly:
There is no signal from th etire pressur esensor of on eor several tires .
The pressur eof th eaffecte dtire does no tappear in th emultifunction
display.
XHav eth efault ytire pressur esensor replace dat aqualified special -
ist workshop .
TirePressure Moni‐tor Inoperative NoWheel Sensor s
USAonly:
The wheels mounte ddo no thav e a suitable tire pressur esensor .The
tire pressur emonitor is deactivated.
XMoun twheels wit hsuitable tire pressur esensors.
The tire pressur emonitor is activated automatically after drivin gfor
a few minutes.
Tir ePress.Monito rInoperativeUSAonly:
The tire pressur emonitor is faulty.
XVisit aqualified specialist workshop .
Vehicle
Display messagesPossible causes/consequences and MSolutions
DepressBrake toStart EngineYou hav eattempte dto start th eengin ewit hth etransmission in posi-
tion iwithout depressing th ebrak epedal .
XDepress th ebrak epedal .
ToDeselectPorN,Depres sBrake andStart Engine
You hav eattempte dto shift th etransmission to position korh
without starting th eengine.
XStart th eengine.
XDepress th ebrak epedal .
iIt is only possibl eto shift th etransmission from position Pto th e
desire dposition if you depress th ebrak epedal .Only then can th e
parking loc kbe deactivated. If you do no tdepress th ebrak epedal ,
th eDIRECT SELECT lever can still be moved but th eparking loc k
remain sengaged.
iAt transmission fluid temperatures belo wÒ4 ‡ ( Ò20†) you can
only shift out of position Pint oanother transmission position when
th eengin eis running.
Apply Brake toShift fro m'P'You attempte dto shift th etransmission to position k,iorh
without depressing th ebrak epedal .
XDepress th ebrak epedal .
222Display messages
On-board computer and displays