2014 MERCEDES-BENZ GL parking sensors

Belt
see Seat belts
Belt force limiter
Activation ......................................... 59
Function ........................................... 59
Blind Spot Assist
Activating/deactivating.................281
Display message............................314
Notes/function..............................243
Trailer towing.................................245
see Active Blind Spot Assist
BlueTEC
Adding DEF....................................186
BlueTEC (DEF)....................................448
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message............................297
Notes.............................................450
Brake lamps
Changing bulbs..............................140
Display message............................304
Brakes
ABS..................................................67
Adaptive Brake Assist......................71
BAS..................................................68
BAS PLUS........................................68
Brake fluid (notes).........................450
Display message............................291
High-performance brake system....195
Important safety notes..................193
Maintenance..................................194
Parking brake................................189
Riding tips ...................................... 193
Warning lamp ................................. 326
Breakdown
see Flat tire
see Towing away
Bulbs
see Replacing bulbs
C
California
Important notice for retail
customers and lessees....................25
Calling up a malfunction
see Display messages
Car
see Vehicle
Care
360° camera.................................380
Carpets..........................................383
Car wash ........................................ 376
Display...........................................381
Exhaust pipe..................................381
Exterior lights................................379
Gear or selector lever....................382
Interior...........................................381
Matte finish...................................378
Night View Assist Plus...................381
Notes.............................................376
Paint..............................................378
Plastic trim....................................382
Power washer................................377
Rear view camera..........................380
Roof lining ...................................... 383
Seat belt........................................383
Seat cover.....................................383
Sensors.........................................380
Steering wheel...............................382
Trim pieces....................................382
Washing by hand...........................377
Wheels...........................................379
Windows........................................379
Wiper blades..................................379
Wooden trim..................................382
Cargo compartment cover
Notes/how to use.........................346
Cargo compartment enlargement
Important safety notes..................344
Cargo compartment floor
Opening/closing............................347
Stowage well (under).....................347
Cargo tie down rings.........................345
Car key
see SmartKey
Car wash (care).................................376
CD player/CD changer (on-board
computer)..........................................278
Center console
Lower section..................................37
Upper section..................................36
6Index

On-board computer
AMG menu .....................................287
Assistance menu...........................280
Audio menu...................................278
Convenience submenu..................285
Displaying a service message........375
Display messages..........................290
DISTRONIC PLUS...........................210
Factory settings submenu.............286
Important safety notes..................272
Instrument cluster submenu..........282
Lighting submenu..........................283
Menu overview..............................275
Message memory..........................290
Navigation menu............................277
On and Offroad menu....................286
Operation ....................................... 273
RACETIMER...................................287
Service menu.................................282
Settings menu...............................282
Standard display............................275
Telephone menu............................279
Trip menu......................................275
Vehicle submenu...........................284
Video DVD operation.....................279
On-road programs
AUTO program...............................254
Function/notes.............................253
Snow program...............................255
SPORT program.............................254
Trailer program..............................255
Opening and closing the side trim
panels.................................................139
Operating safety
Declaration of conformity................27
Important safety notes....................26
Operating system
see On-board computer
Operator's Manual
Vehicle equipment...........................24
Outside temperature display...........273
Overhead control panel......................39
Override feature
Rear side windows...........................66
P
Paint code number............................444
Paintwork (cleaning instructions)...378
Panic alarm..........................................42
Panorama roof with power tilt/
sliding panel
Opening/closing............................100
Opening/closing the roller
sunblind.........................................101
Problem (malfunction)...................103
Resetting.......................................101
Panorama sliding sunroof
Important safety notes....................98
Parking...............................................188
Important safety notes..................188
Parking brake................................189
Position of exterior mirror, front-
passenger side ............................... 124
Rear view camera..........................230
see PARKTRONIC
Parking aid
Active Parking Assist.....................226
see Exterior mirrors
see PARKTRONIC
Parking assistance
see PARKTRONIC
Parking brake
Display message............................294
Electric parking brake....................189
Warning lamp ................................. 332
Parking lamps
Switching on/off...........................130
PARKTRONIC
Deactivating/activating.................224
Driving system...............................222
Function/notes.............................222
Important safety notes..................222
Problem (malfunction)...................226
Range of the sensors.....................223
Trailer towing.................................225
Warning display.............................224
PASSENGER AIR BAG OFF
Problem (malfunction).....................53
Problems (malfunction) .................. 301
PASSENGER AIR BAG OFF indicator
lamp...................................................... 49
Plastic trim (cleaning instructions).382
Index15

As a result, BAS PLUS may not intervene in all
critical situations. There is a risk of an
accident.
Always pay careful attention to the traffic
situation and be ready to brake.
In the event of snowfall or heavy rain, the
recognition can be impaired.
Recognition by the radar sensor system is
also impaired in the event of:
Rdirt on the sensors or anything else
covering the sensors
Rthere is interference by other radar sources
Rthere are strong radar reflections, for
example in parking garages
Ra narrow vehicle traveling in front, e.g. a
motorbike
Ra vehicle traveling in front on a different line
relative to the center of your vehicle
Following damage to the front end of the
vehicle, have the configuration and operation
of the radar sensors checked at a qualified
specialist workshop. This also applies to
collisions at low speeds where there is no
visible damage to the front of the vehicle.
Function
To avoid a collision, BAS PLUS calculates the
brake force necessary if:
Ryou approach an obstacle, and
RBAS PLUS has detected a risk of collision
When driving at a speed under 20 mph
(30 km/h): if you depress the brake pedal,
BAS PLUS is activated. The increase in brake
pressure will be carried out at the last
possible moment.
When driving at a speed above 20 mph
(30 km/h): if you depress the brake pedal
sharply, BAS PLUS automatically raises the
brake pressure to a value adapted to the
traffic situation.
BAS PLUS provides braking assistance in
hazardous situations with vehicles in front
within a speed range between 4 mph
(7 km/h) and 155 mph (250 km/h).
At speeds of up to approximately 40 mph
(70 km/h), BAS PLUS can also react to
stationary objects. Examples of stationary
objects are stopped or parked vehicles.
iIf BAS PLUS demands particularly high
braking force, preventative passenger
protection measures (PRE-SAFE®) are
activated simultaneously.
XKeep the brake pedal depressed until the
emergency braking situation is over.
ABS prevents the wheels from locking.
BAS PLUS is deactivated and the brakes
function as usual again, if:
Ryou release the brake pedal.
Rthere is no longer a risk of collision.
Rno obstacle is detected in front of your
vehicle.
If you have activated DSR (Ypage 256), BAS
PLUS is likewise deactivated.
COLLISION PREVENTION ASSIST
General notes
COLLISION PREVENTION ASSIST consists of
Adaptive Brake Assist and the distance
warning function, which are described in the
following.
Distance warning function
Important safety notes
iObserve the "Important safety notes"
section (Ypage 67).
GWARNING
The distance warning function does not react:
Rto people or animals
Rto oncoming vehicles
Rto crossing traffic
Rwhen cornering
Driving safety systems69
Safety
Z

Adaptive Brake Assist
iObserve the "Important safety notes"
section (Ypage 67).
GWARNING
Adaptive Brake Assist cannot always clearly
identify objects and complex traffic
situations.
In such cases, Adaptive Brake Assist may:
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 situation.
GWARNING
Adaptive Brake Assist does not react:
Rto people or animals
Rto oncoming vehicles
Rto crossing traffic
Rto stationary obstacles
Rwhen cornering
As a result, Adaptive Brake Assist may not
intervene in all critical conditions. There is a
risk of an accident.
Always pay careful attention to the traffic
situation and be ready to brake.
Due to the nature of the system, particularly
complicated but non-critical driving
conditions may also cause Brake Assist to
intervene.
Adaptive Brake Assist aids you in braking
during hazardous situations at speeds above
4 mph (7 km/h) and uses the radar sensor
system to evaluate the traffic situation.
With the help of Adaptive Brake Assist, the
distance warning signal can detect obstacles
that are in the path of your vehicle for an
extended period of time.
Should you approach an obstacle and
Adaptive Brake Assist has detected a risk of
collision, Adaptive Brake Assist calculates the
braking force necessary to avoid a rear-end
collision. Should you apply the brakes
vigorously, Adaptive Brake Assist will
automatically increase the braking force to a
level suitable for the traffic conditions.
XKeep the brake pedal depressed until the
emergency 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
vehicle.
Adaptive Brake Assist is then deactivated.
Vehicles with PRE-SAFE®:if adaptive Brake
Assist requires particularly high brake
pressure, preventive passenger protection
measures (PRE-SAFE®) are deployed
simultaneously.
Up to vehicle speeds of around 155 mph
(250 km/h), adaptive Brake Assist is capable
of reacting to moving objects that have
already been recognized as such at least once
over the period of observation. Adaptive
Brake Assist does not react to stationary
obstacles.
If Adaptive Brake Assist is not available due
to a malfunction in the radar sensor system,
the brake system remains available with full
brake boosting effect and BAS.
In particular, the detection of obstacles can
be impaired if there is:
Rdirt 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
example in parking garages
Ra narrow vehicle traveling in front, e.g. a
motorbike
Driving safety systems71
Safety
Z

Recognition by the radar sensor system is
also impaired in the event of:
Rdirt on the sensors or anything else
covering the sensors
Rthere is interference by other radar sources
Rthere are strong radar reflections, for
example in parking garages
Ra narrow vehicle traveling in front, e.g. a
motorbike
Ra vehicle traveling in front on a different line
relative to the center of your vehicle
Following damage to the front end of the
vehicle, have the configuration and operation
of the radar sensors checked at a qualified
specialist workshop. This also applies to
collisions at low speeds where there is no
visible damage to the front of the vehicle.
Function
XTo activate/deactivate:activate or
deactivate PRE-SAFE®Brake in the on-
board computer (Ypage 281).
If the PRE-SAFE®Brake is not activated, the

There is a risk of an accident.
Continue to drive carefully and be ready to
brake, in particular when warned to do so by
DISTRONIC PLUS.
GWARNING
DISTRONIC PLUS brakes your vehicle with up
to 40% of the maximum braking force. If this
braking force is insufficient, DISTRONIC PLUS
warns you visually and audibly. There is a risk
of an accident.
In such cases, apply the brakes yourself and
try to take evasive action.
!If DISTRONIC PLUS or the HOLD function
is activated, the vehicle brakes
automatically in certain situations. To
prevent damage to the vehicle, deactivate
DISTRONIC PLUS and the HOLD function in
the following or other similar situations:
Rwhen towing the vehicle
Rin the car wash
If you fail to adapt your driving style,
DISTRONIC PLUS can neither reduce the risk
of accident nor override the laws of physics.
DISTRONIC PLUS cannot take into account
the road, traffic and weather conditions.
DISTRONIC PLUS is only an aid. You are
responsible for the distance to the vehicle in
front, for vehicle speed, for braking in good
time and for staying in your lane.
Do not use DISTRONIC PLUS:
Rin road and traffic conditions which do not
allow you to maintain a constant speed e.g.
in heavy traffic or on winding roads
Ron slippery road surfaces. Braking or
accelerating could cause the drive wheels
to lose traction and the vehicle could then
skid
Rwhen there is poor visibility, e.g. due to fog,
heavy rain or snow
DISTRONIC PLUS may not detect narrow
vehicles driving in front, e.g. motorcycles, or
vehicles driving on a different line.
In particular, the detection of obstacles can
be impaired if:
Rdirt on the sensors or anything else
covering the sensors
Rsnow or heavy rain
Rinterference by other radar sources
Rstrong radar reflections, for example, in
parking garages
If DISTRONIC PLUS no longer detects a
vehicle in front, DISTRONIC PLUS may
unexpectedly accelerate the vehicle to the
stored speed.
This speed may:
Rbe too high if you are driving in a filter lane
or an exit lane
Rbe so high when driving in the right-hand
lane that you overtake vehicles in the left-
hand lane
Rbe so high when driving in the left-hand lane
that you overtake vehicles in the right-hand
lane
If there is a change of drivers, advise the new
driver of the speed stored.
Cruise control lever
CTo activate or increase speed
DTo activate or reduce speed

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 on a
truck or a pneumatic drill could cause
PARKTRONIC to malfunction.
PARKTRONIC may not function correctly on
uneven terrain.
PARKTRONIC is activated automatically when
you:
Rswitch on the ignition
Rshift the transmission to positionD,RorN
RRelease the electric parking brake
PARKTRONIC is deactivated at speeds above
11 mph (18 km/h). It is reactivated at lower
speeds.
PARKTRONIC monitors the area around your
vehicle using six sensors in the front bumper
and four sensors in the rear bumper.
CSensors in the front bumper, left-hand
side (example)
Range of the sensors
General notes
PARKTRONIC does not take objects into
consideration that are:
Rbelow the detection range, e.g. people,
animals or objects
Rabove the detection range, e.g.
overhanging loads, truck overhangs or
loading ramps.
Side view
Top view
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 380).
Front sensors
CenterApprox. 40 in (approx.
100 cm)
CornersApprox. 24 in (approx.
60 cm)
Driving systems223
Driving and parking
Z

Problems with PARKTRONIC
ProblemPossible causes/consequences andPPSolutions
Only the red segments
in the PARKTRONIC
warning displays are lit.
You also hear a warning
tone for approximately
two seconds.
PARKTRONIC is
deactivated after
approximately five
seconds, and the
indicator lamp in the
PARKTRONIC button
lights up.
PARKTRONIC has malfunctioned and has switched off.
XIf problems persist, have PARKTRONIC checked at a qualified
specialist workshop.
Only the red segments
in the PARKTRONIC
warning displays are lit.
PARKTRONIC is
deactivated after
approximately five
seconds.
The PARKTRONIC sensors are dirty or there is interference.
XClean the PARKTRONIC sensors (Ypage 380).
XSwitch the ignition back on.
The problem may be caused by an external source of radio or
ultrasound waves.
XSee if PARKTRONIC functions in a different location.
Active Parking Assist
General notes
Active Parking Assist is an electronic parking
aid with ultrasound. It measures the road on
both sides of the vehicle. A parking symbol
indicates a suitable parking space. Active
steering intervention can assist you during
parking.
You may also use PARKTRONIC
(Ypage 222).
Important safety notes
Active Parking Assist is merely 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, parking or pulling out of a
parking space, make sure that there are no
persons, animals or objects in the area in
which you are maneuvering.
When PARKTRONIC is switched off, 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
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 Active
Parking Assist parking procedure.
!If unavoidable, you should drive over
obstacles such as curbs slowly and not at
a sharp angle. Otherwise, you may damage
the wheels or tires.
226Driving systems
Driving and parking