2014 MERCEDES-BENZ GL automatic transmission

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

Once you have exited the parking space
completely, the steering wheel is moved to
the straight-ahead position. You hear a tone
and thePark Assist FinishedPark Assist Finishedmessage
appears in the multifunction display. You will
then have to steer and merge into traffic on
your own. PARKTRONIC is still available. You
can take over the steering, before the vehicle
has exited the parking space completely. This
is useful, for example when you recognize
that it is already possible to pull out of the
parking space.
Canceling Active Parking Assist
XStop the movement of the multifunction
steering wheel or steer yourself.
Active Parking Assist will be canceled at
once. ThePark Assist CanceledPark Assist Canceled
message appears in the multifunction
display.
or
XPress the PARKTRONIC button on the
center console (Ypage 224).
PARKTRONIC is switched off and Active
Parking Assist is immediately canceled.
ThePark Assist CanceledPark Assist Canceledmessage
appears in the multifunction display.
Active Parking Assist is canceled
automatically if:
Rthe electric parking brake is engaged
Rtransmission positionPis selected
Rparking using Active Parking Assist is no
longer possible
Ryou are driving faster than 6 mph
(10 km/h)
Ra wheel spins, ESP®intervenes or fails. The

RESP®is switched off.
Rthe transmission is not in positionD.
Ron vehicles with a trailer tow hitch, the
electrical connection to the trailer has been
correctly established.
Rthe off-road program is activated (vehicles
without the ON&OFFROAD package).
Roff-road program 1 or 2 is activated
(vehicles with the ON&OFFROAD package).
Rthe LOW RANGE off-road gear is activated
(vehicles with the ON&OFFROAD package).
Ra loss of tire pressure or a defective tire has
been detected and displayed.
Active Lane Keeping Assist does not detect
traffic situations or road users. An
inappropriate brake application may be
interrupted at any time if you:
Rsteer slightly in the opposite direction
Rswitch on the turn signal
Rclearly brake or accelerate
A lane-correcting brake application is
interrupted automatically if:
Ra driving safety system intervenes, e.g.
ESP®, PRE-SAFE®Brake or Active Blind
Spot Assist.
Rlane markings can no longer be recognized.
Switching on Active Lane Keeping Assist
XSwitch on Active Lane Keeping Assist using
the on-board computer; to do so, select
StandardStandardorAdaptiveAdaptive(Ypage 282).
If you drive at speeds above 40 mph
(60 km/h) and lane markings are detected,
the lines in the assistance graphics display
(Ypage 280) are shown in green. Lane
Keeping Assist is ready for use.
WhenStandardStandardis selected, no warning
vibration occurs if:
Ryou switch on the turn signals. In this
event, the warnings are suppressed for a
certain period of time.
Ra driving safety system intervenes, such
as ABS, BAS or ESP®.
WhenAdaptiveAdaptiveis selected, no warning
vibration occurs if:
Ryou switch on the turn signals. In this
event, the warnings are suppressed for a
certain period of time.
Ra driving safety system intervenes, e.g.
ABS, BAS or ESP®.
Ryou accelerate hard, e.g. kickdown.
Ryou brake hard.
Ryou steer actively, e.g. swerve to avoid
an obstacle or change lanes quickly.
Ryou cut the corner on a sharp bend.
Towing a trailer
When you attach a trailer, make sure you have
correctly established the electrical
connection. This can be accomplished by
checking the trailer lighting.
On-road programs (vehicles with the
ON&OFFROAD package)
General notes
The on-road programs assist you during on-
road driving and the off-road programs when
driving off-road (Ypage 258).
The following program messages remain in
the multifunction display until the
corresponding vehicle level has been set. Up
to off-road level 2, you can hide the program
messages using the8orvbutton on
the multifunction steering wheel.
Driving systems253
Driving an d parking
Z

General notes
CLOW RANGE off-road gear button
DLOW RANGE off-road gear indicator lamp
HIGH RANGEPosition for all normal on-
road driving conditions
LOW RANGEOff-road position for
driving off-road and
fording
The transmission ratio
between the engine and
wheels is only
approximately one third of
that in the HIGH RANGE
road position. Drive torque
is thus proportionately
higher.
Do not use LOW RANGE:
Ron slippery road
surfaces, e.g. in the case
of slush
Ron snow or ice-covered
roads
Rif you have mounted
snow chains to your
vehicle
The LOW RANGE off-road gear assists you in
driving off-road and when fording. When LOW
RANGE is engaged, the engine’s performance
characteristics and the gearshifting
characteristics of the automatic transmission
are adapted for this purpose.
Further information about "Driving off-road"
(Ypage 197). You will find information about
driving safety systems in conjunction with
LOW RANGE in the "Safety" section
(Ypage 66).
From HIGH RANGE to LOW RANGE
!Only change from LOW RANGE to HIGH
RANGE if:
Rthe engine is running.
Rthe transmission is in positionN
Ryou are driving at a speed below
40 km/h
XPress LOW RANGE buttonC.
Indicator lampDflashes.
When the gear change is complete,
indicator lampDlights up. LOW RANGE
indicator appears in the multifunction
display and in the status indicator.
While indicator lampDis flashing, you can
cancel the gear change by pressing LOW
RANGE buttonCagain.
iYou cannot activate LOW RANGE if the
SPORT on-road program is activated. The
LOW RANGE Not in Drive ProgramLOW RANGE Not in Drive Program
SPORTSPORTmessage then appears in the
multifunction display.
From LOW RANGE to HIGH RANGE
!Only change from LOW RANGE to HIGH
RANGE if:
Rthe engine is running.
Rthe transmission is in positionN
Ryou are driving at a speed below
70 km/h
XPress LOW RANGE buttonC.
Indicator lampDflashes.
When the gear change is complete,
indicator lampDgoes out. In the
multifunction display, theLOW RANGE OffLOW RANGE Off
message appears and status indicator

of the towing vehicle, as the latter is
equipped with an anti-lock brake system.
Doing so will result in a loss of function of
the brake systems of both the vehicle and
the trailer.
XMake sure that the automatic transmission
is set to positionP.
XApply the vehicle's electric parking brake.
XStart the engine.
XVehicles with the AIRMATIC package:
select highway level.
XVehicles with ADS:set ADS toAUTOor
COMF.
XSwitch off the engine.
XClose all doors and the tailgate.
XCouple up the trailer.
XEstablish all electrical connections.
XCheck that the trailer lighting system is
working.
iVehicles with the AIRMATIC package:
with a trailer attached, the vehicle will
always remain at highway level. When
coupling up a trailer, please observe the
following:
RUnless highway level has been set
manually, the vehicle is automatically
lowered to highway level. This is the case
if a speed of 5 mph(8km/h) is reached.
RHigh-speed level is not available.
These restrictions apply to all accessories
powered through a connection to the trailer
power socket of your vehicle, e.g. a bicycle
carrier.
Observe the maximum permissible trailer
dimensions (width and length).
Most U.S. states and all Canadian provinces
require by law:
RSafety chains between the towing vehicle
and the trailer. The chains should be cross-
wound under the trailer drawbar. They must
be fastened to the vehicle's trailer
coupling, not to the bumper or the axle.
Leave enough play in the chains to make
tight cornering possible.
RA separate brake system for certain types
of trailer.
RA safety switch for braked trailers. Check
the specific legal requirements applicable
to your state.
If the trailer detaches from the towing
vehicle, the safety switch applies the
trailer's brakes.
Towing a trailer
There are numerous legal requirements
concerning the towing of a trailer, e.g. speed
restrictions. Make sure that your vehicle/
trailer combination complies with the local
requirements not only in your area of
residence but also at any location to which
you are traveling. The police and local
authorities can provide reliable information.
Please observe the following when towing a
trailer:
RIn order to accumulate driving experience
and accustom yourself to the new handling
characteristics, practice the following at a
location where there is no traffic:
-Cornering
-Stopping
-Backing up
RBefore driving, check:
-the trailer tow hitch
-the safety switch for braked trailers
-the safety chains
-electrical connections
-the lights
-the wheels
RAdjust the exterior mirrors to provide an
unobstructed view of the rear section of the
trailer.
RIf the trailer has electronically controlled
brakes, pull away carefully. Brake manually
using the brake controller and check
whether the brakes function correctly.
Towing a trailer267
Driving an d parking
Z

RSecure any objects on the trailer to prevent
the cargo from slipping when the vehicle is
in motion.
RIf you couple up a trailer, regularly check
that the cargo is securely fastened and
make sure that the trailer lamps and (if
applicable) the trailer brakes are
functioning correctly.
RBear in mind that the handling will be less
stable when towing a trailer than when
driving without one. Avoid sudden steering
movements.
RThe vehicle/trailer combination is heavier,
accelerates more slowly, has a decreased
gradient climbing capability and a longer
braking distance.
It is more susceptible to side winds and
requires more careful steering.
RIf possible, avoid abrupt braking. Depress
the brake pedal moderately at first, so that
the trailer can activate its own brakes. Then
increase the pressure on the brake pedal.
RIf the automatic transmission repeatedly
shifts between gears on uphill or downhill
gradients, shift to a lower gear using the
left-hand steering wheel paddle shifter.
A lower gear and lower speed reduce the
risk of engine failure.
RWhen driving downhill, shift to a lower gear
to utilize the engine's braking effect.
Avoid continuous brake application as this
may overheat the vehicle brakes and, if
installed, the trailer brakes.
RIf the coolant temperature increases
dramatically while the air-conditioning
system is switched on, switch off the air-
conditioning system.
Coolant heat can additionally be dissipated
by opening the windows and by setting the
blower fan and the interior temperature to
maximum.
RWhen overtaking, pay particular attention
to the extended length of your vehicle/
trailer combination.
Due to the length of your vehicle/trailer
combination, you will have to travel an
additional distance beyond the vehicle you
are overtaking before returning to the
previous lane.
Decoupling a trailer
GWARNING
If you uncouple a trailer with the overrun
brake engaged, you could trap your hand
between the vehicle and the trailer drawbar.
There is a risk of injury.
Do not uncouple a trailer if the overrun brake
is engaged.
GWARNING
Vehicles with level control:
The vehicle is lowered as soon as you
disconnect the trailer cable. This could result
in your limbs or those of other people that are
between the vehicle body and tires or
underneath the vehicle being trapped. There
is a risk of injury.
Make sure that nobody is in the immediate
vicinity of the wheel housings or under the
vehicle when you disconnect the trailer cable.
!Do not disconnect a trailer with an
engaged overrun brake. Otherwise, your
vehicle could be damaged by the
rebounding of the overrun brake.
XMake sure that the automatic transmission
is set to positionP.
XApply the vehicle's electric parking brake.
XStart the engine.
XClose all doors and the tailgate.
XApply the trailer's parking brake.
XDetach the trailer cable and decouple the
trailer.
XSwitch off the engine.
268Towing a trailer
Driving and parking

Display messagesPossible causes/consequences andPPSolutions
I(USA
only)$(Canada
only)
Please ReleasePlease Release
Parking BrakeParking Brake
The redI(USA only)/$(Canada only) indicator lamp
flashes and a warning tone sounds. A condition for automatic
release of the electric parking brake is not fulfilled (Ypage 189).
You are driving with the electric parking brake applied.
XRelease the electric parking brake manually.
The redI(USA only)/$(Canada only) indicator lamp
flashes and a warning tone sounds.
You are using the electric parking brake for emergency braking
(Ypage 189).
I(USA
only)$(Canada
only)
Parking Brake SeeParking Brake See
Operator's ManualOperator's Manual
The yellow$warning lamp lights up.
The electric parking brake is malfunctioning.
To apply:
XSwitch the ignition off.
XPress the electric parking brake handle for at least ten seconds.
XShift the transmission toP.
XConsult a qualified specialist workshop.
The yellow$warning lamp and the redI(USA
only)/$(Canada only) indicator lamp light up.
The electric parking brake is malfunctioning.
To release:
XSwitch off the ignition and turn it back on.
XRelease the electric parking brake manually.
or
XRelease the electric parking brake automatically (Ypage 189).
If the electric parking brake still cannot be released:
XDo not drive on.
XConsult a qualified specialist workshop.
294Displaymessages
On-b oard computer and displays

Display messagesPossible causes/consequences andPPSolutions
The redI(USA only)/$(Canada only) indicator lamp
flashes and the yellow$warning lamp lights up.
The electric parking brake is malfunctioning.
To release:
XSwitch off the ignition and turn it back on.
XRelease the electric parking brake manually.
To apply:
XSwitch off the ignition and turn it back on.
XApply the electric parking brake manually.
If the redI(USA only)/$(Canada only) indicator lamp
continues to flash:
XDo not drive on.
XSecure the vehicle against rolling away (Ypage 428).
XShift the transmission toP.
XTurn the front wheels towards the curb.
XConsult a qualified specialist workshop.
The yellow$warning lamp lights up. The redI(USA
only)/$(Canada only) indicator lamp flashes for about ten
seconds after the electric parking brake has been applied or
released. It then goes out or remains lit.
The electric parking brake is malfunctioning.
XSwitch off the ignition and turn it back on.
XApply the electric parking brake.
If it is not possible to engage the electric parking brake:
XShift the transmission toP.
XVisit a qualified specialist workshop.
If it is not possible to release the electric parking brake:
XRelease the electric parking brake automatically (Ypage 189).
If the electric parking brake still cannot be released:
XConsult a qualified specialist workshop.
Displaymessages295
On-b oard computer and displays
Z