2014 MERCEDES-BENZ GL-Class engine

The
Park Assist active Select R
Park Assist active Select R
Observe
Observe surroundings
surroundings message appears in
the multifunction display.
As soon as the parking procedure is
complete, the Park Assist switched off
Park Assist switched off
message appears and a warning tone sounds.
Active Parking Assist no longer supports you
with steering interventions. When Active
Parking Assist is finished, you must steer
again yourself. PARKTRONIC is still available.
Parking tips:
R The way your vehicle is positioned in the
parking space after parking is dependent
on various factors. These include the
position and shape of the vehicles parked
in front and behind it and the conditions of
the location. It may be the case that Active
Parking Assist guides you too far into a
parking space, or not far enough into it. In
some cases, it may also lead you across or
onto the curb. If necessary, you should
cancel the parking procedure with Active
Parking Assist.
R You can also select preselect transmission
position D. The vehicle redirects and does
not drive as far into the parking space.
Should the gear change occur too soon to
achieve a sensible parking position, the
parking procedure will be aborted.
Exiting a parking space In order that Active Parking Assist can
support you when you exit the parking space:
R you need to have parked using Active
Parking Assist.
R the border of the parking space must be
high enough at the front and the rear. A
curb stone is too small, for example.
R the border of the parking space must not
be too wide, as the position of the vehicle
must not exceed an angle of 45° to the
starting position as it is maneuvered into
the parking space.
R a maneuvering distance of at least 3.3 ft
(1.0 m) must be available. X
Start the engine.
X Switch on the turn signal in the direction
you are pulling away.
X Shift the transmission to position Dor R.
The Start Park Assist? Yes: OK No:
Start Park Assist? Yes: OK No:
% message appears in the multifunction
display.
X To cancel the procedure: press the
% button on the multifunction steering
wheel or pull away.
or
X To exit a parking space using Active
Parking Assist: press theabutton on
the multifunction steering wheel.
The Park Assist active Accelerate Park Assist active Accelerate
and brake Observe surroundings
and brake Observe surroundings
message appears in the multifunction
display.
X Let go of the multifunction steering wheel.
X Reverse the vehicle or drive forwards, being
ready to brake at all times. Do not exceed
a maximum speed of approximately
6 mph (10 km/h) when exiting a parking
space. Otherwise Active Parking Assist will
be canceled.
X Stop as soon as PARKTRONIC sounds the
continuous warning tone, if not before.
X Shift the transmission to position Dor Ras
required while the vehicle is stationary.
Active Parking Assist immediately steers in
the other direction.
i You will achieve the best results by
waiting for the steering procedure to
complete before pulling away.
If you back up after activation, the steering
wheel is moved to the straight-ahead
position.
X Drive forwards or back up the vehicle, being
ready to brake at all times.
X Stop as soon as PARKTRONIC sounds the
continuous warning tone, if not before.
X Drive forwards and back up as prompted by
the PARKTRONIC warning displays, several
times if necessary. Driving systems
229Driving and parking Z

Warning and display messages in the
multifunction display X
Activate ATTENTION ASSIST using the on-
board computer (Y page 281).
X If ATTENTION ASSIST is active, it will not
warn you until at least 20 minutes after
your journey has begun. You then hear an
intermittent warning tone twice and the
Attention Assist: Take a Break!
Attention Assist: Take a Break!
message appears in the multifunction
display.
If necessary, take a break.
X Press the aor% button to confirm
the message.
On long journeys, take regular breaks in good
time to allow yourself to rest properly. If you
do not take a break and ATTENTION ASSIST
still detects increasing lapses in
concentration, you will be warned again after
15 minutes at the earliest.
ATTENTION ASSIST is reset when you
continue your journey and starts assessing
your tiredness again if:
R you switch off the engine.
R you take off your seat belt and open the
driver's door, e.g. for a change of drivers or
to take a break. Night View Assist Plus
General notes In addition to the illumination provided by the
normal headlamps, Night View Assist Plus uses infrared light to illuminate the road.
Night View Assist Plus camera
:picks up
the infrared light and displays a monochrome
image in COMAND. The image displayed in
COMAND corresponds to a road lit up by high-
beam headlamps. This enables you to see the
road's course and any obstacles in good time.
If pedestrian recognition is activated,
pedestrians recognized by the system are
highlighted in the Night View Assist Plus
display.
Light from the headlamps of oncoming
vehicles does not affect the Night View Assist
Plus display in the multifunction display. This
is also the case if you cannot switch on the
high-beam headlamps due to oncoming
traffic.
i Infrared light is not visible to the human
eye and therefore does not glare. Night
View Assist Plus can therefore remain
switched on even if there is oncoming
traffic.
Important safety notes Night View Assist Plus is only an aid and is not
a substitute for attentive driving. Do not rely
on the Night View Assist Plus display. You are
responsible for the distance to the vehicle in
front, for vehicle speed and for braking in
good time. Drive carefully and always adapt
your driving style to suit the prevailing road
and traffic conditions.
The system may be impaired or may not
function if:
R
there is poor visibility, e.g. due to snow,
rain, fog or spray
R the windshield is dirty, fogged up or
covered, for instance by a sticker, in the
vicinity of the camera
R on bends, on uphill gradients or downhill
gradients 240
Driving systemsDriving and parking

corresponding 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 ambient light.
Collision warning
If a vehicle is detected in the monitoring range
of Blind Spot Assist and you switch on the
corresponding turn signal, a double warning
tone sounds. Red warning lamp :flashes. If
the turn signal remains on, vehicles detected
are indicated by the flashing of red warning
lamp :. There are no further warning tones.
Switching on Blind Spot Assist X
Make sure that the radar sensor system
(Y page 285) and Blind Spot Assist
(Y page 281) are activated in the on-board
computer.
X Turn the SmartKey to position 2in the
ignition lock.
Warning lamps :in the exterior mirrors
light up red for approximately
1.5 seconds and then turn yellow. 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. In this event,
Blind Spot Assist is deactivated. The indicator
lamp in the exterior mirrors lights up yellow,
and the Blind Spot Assist Currently
Blind Spot Assist Currently
Unavailable See Operator's Manual Unavailable See Operator's Manual
message appears in the multifunction
display.
i You can deactivate the indicator lamps in
the exterior mirrors.
To do so, switch off Blind Spot Assist when:
R the SmartKey is in position 2in the
ignition lock
R the engine is not running
R the electrical connection to the trailer
has been established
Lane Keeping Assist General notes
:
Lane Keeping Assist camera
Lane Keeping Assist monitors the area in
front of your vehicle by means of a
camera :at the top of the windshield. Lane
Keeping Assist detects lane markings on the
road and warns you before you leave your
lane unintentionally.
If you select km kmon the on-board computer in
the Display Unit Speed-/Odometer
Display Unit Speed-/Odometer
function ( Ypage 282), Lane Keeping Assist
is active starting at a speed of 60 km/h. If the Driving systems
245Driving and parking Z

X
To increase or decrease in 1 mph
increments (Canada: 1 km/h
increments): briefly press the cruise
control lever up :for a higher set speed
or down ;for a lower set speed.
The set speed appears in the multifunction
display with the ÃDSR symbol. It is also
displayed in status indicator =.
When DSR is activated, you can change the
set speed to a value between 1 mph and
11 mph (Canada: between 2 km/h and
18 km/h).
i The DSR set speed is always changed in
1 mph increments (Canada: 1 km/h
increments). This is regardless of whether
you press the cruise control lever to or
beyond the pressure point.
Off-road programs (vehicles with the
ON&OFFROAD package) General notes
The off-road programs assist you in driving
off-road. The engine's performance
characteristics and the gearshifting
characteristics of the automatic transmission
are adapted for this purpose. ABS, ESP ®
and
4ETS programs especially adapted to off-road
driving are activated. An accelerator pedal
curve suitable for the terrain is selected, i.e.
the accelerator pedal must be depressed
further to accelerate.
Do not use the off-road programs on roads
that are snow-covered or icy or if you have
mounted snow chains on your vehicle.
For information on driving off-road, see
(Y page 197).
The following program messages are shown
in the multifunction display until the
applicable vehicle level is set. Up to off-road
level 2, you can hide the program messages
using the %or the abutton on the
multifunction steering wheel. Off-road program 1
X
Selector wheel : :engaged: briefly press
selector wheel :.
Selector wheel :extends.
X To select: turn selector wheel :until
indicator lamp ;comes on.
Off-road indicator =appears in the
multifunction display.
Off-road level 1 is set to +1.2 in (+30 mm)
above the highway level.
Off-road program 1 switches to the AUTO
program if you drive faster than 70 mph
(110 km/h).
Select off-road program 1 for gentle off-road
terrain, e.g. for gravel or sand surfaces or
tracks. The engine's torque is restricted to a
limited degree and the drive wheels can spin.
The spinning wheels produce a cutting effect
for better traction.
You can only activate off-road program 1
when driving at speeds of 60 mph
(100 km/h) or below. The Drive Program Drive Program
OFFROAD 1 Max. 60 mph (100 km/h)
OFFROAD 1 Max. 60 mph (100 km/h) 258
Driving systemsDriving an
d parking

message appears in the multifunction
display.
Off-road program 2
X
Selector wheel : :engaged: briefly press
selector wheel :.
Selector wheel :extends.
X To select: turn selector wheel :until
indicator lamp ;comes on.
Off-road indicator =appears in the
multifunction display.
R Off-road level 1 is set to +2.4 in
(+60 mm) above the highway level.
R DSR is switched on.
R The differential lock is closed.
Off-road program 2 automatically switches to
off-road program 1 if you drive faster than
30 mph (45 km/h).
Select off-road program 2 for rough terrain,
e.g. for steep and/or rough terrain or driving
on rocky terrain.
i Your vehicle has an automatically
activated differential lock for the transfer case. It controls the balance between the
front and rear axles.
The differential lock improves the vehicle’s
traction. 4ETS (Y
page 72) controls the
balance between both wheels on an axle.
You can only activate off-road program 2
when driving at speeds of 25 mph (40 km/h)
or below.
LOW RANGE off-road gear (vehicles
with the ON&OFFROAD package) Important safety notes
G
WARNING
If you select the LOW RANGE off-road gear on
a slippery road surface, the wheels could lose
traction:
R if you remove your foot from the
accelerator pedal when driving
R if off road ABS intervenes when braking
If the wheels lose traction. the vehicle can no
longer be steered. There is an increased
danger of skidding and accidents.
Never select the LOW RANGE off-road gear
when driving on slippery road surfaces. G
WARNING
If you do not wait for the transfer case gear
change process to complete, the transfer
case could remain in the neutral position. The
power transmission to the driven wheels is
then interrupted. There is a danger of the
vehicle rolling away unintentionally. There is
a risk of an accident.
Wait until the transfer case shift process is
completed.
Do not turn off the engine while changing gear
and do not shift the automatic transmission
to another position. Driving systems
259Driving and parking Z

General notes
:
LOW RANGE off-road gear button
; LOW RANGE off-road gear indicator lamp HIGH RANGE
Position for all normal on-
road driving conditions
LOW RANGE
Off-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:
R on slippery road
surfaces, e.g. in the case
of slush
R on snow or ice-covered
roads
R if 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"
(Y
page 197). You will find information about
driving safety systems in conjunction with
LOW RANGE in the "Safety" section
(Y page 66).
From HIGH RANGE to LOW RANGE
! Only change from LOW RANGE to HIGH
RANGE if:
R the engine is running.
R the transmission is in position N
R you are driving at a speed below
40 km/h
X Press LOW RANGE button :.
Indicator lamp ;flashes.
When the gear change is complete,
indicator lamp ;lights up. LOW RANGE
indicator appears in the multifunction
display and in the status indicator.
While indicator lamp ;is flashing, you can
cancel the gear change by pressing LOW
RANGE button :again.
i You cannot activate LOW RANGE if the
SPORT on-road program is activated. The
LOW RANGE Not in Drive Program LOW RANGE Not in Drive Program
SPORT SPORT message then appears in the
multifunction display.
From LOW RANGE to HIGH RANGE
! Only change from LOW RANGE to HIGH
RANGE if:
R the engine is running.
R the transmission is in position N
R you are driving at a speed below
70 km/h
X Press LOW RANGE button :.
Indicator lamp ;flashes.
When the gear change is complete,
indicator lamp ;goes out. In the
multifunction display, the LOW RANGE Off
LOW RANGE Off
message appears and status indicator =
goes out. 260
Driving systemsDriving and parking

Messages in the multifunction display
If a gear change process has not been successful, the following messages may be displayed
in the multifunction display: Display messages Possible causes/consequences and
M MSolutions LOW RANGE Max.
LOW RANGE Max.
Speed 40 km/h Speed 40 km/h You have been driving faster than 40 km/h. Additionally, the
indicator lamp on the button in the center console blinks.
X
Drive more slowly to carry out the gear change process. LOW LOW
RANGE
RANGE Shift
Shiftto
to
Position N Briefly
Position N Briefly The transmission is in position
Dand you are driving at below
40 km/h.
X Shift the transmission to Nto complete the gear change
process. LOW LOW
RANGE
RANGE Shifting
Shifting
Canceled Please
Canceled Please
Reactivate Reactivate The gear change process was not carried out.
X
Ensure that all gear change conditions are fulfilled and carry out
the gear change process again. LOW RANGE Stop LOW RANGE Stop
Apply Apply
Parking
Parking Brake
Brake A warning tone also sounds. The gear change process has not been
completed. LOW RANGE is in the neutral position. There is no
connection between the engine and the drive wheels.
! Do not drive any further. You could otherwise damage the
vehicle's drive train.
X Stop the vehicle. Take into account the road and traffic
conditions when doing this.
X Depress the electric parking brake (Y page 189).
X Carry out the gear change process again.
If the gear change process has been carried out, the LOW LOWRANGE
RANGE
Stop Apply Parking Brake
Stop Apply Parking Brake message disappears.ON&OFFROAD menu in the COMAND
display (vehicles with the
ON&OFFROAD package) You can display some driving systems, driving
programs and additional information in the
COMAND display.
X
Make sure that the SmartKey is in position
2 in the ignition lock.
X Make sure that COMAND is activated, see
the separate COMAND operating
instructions.
X Press function button :.
The corresponding displays appear in the
COMAND display:
R level control
R steering angle
R vehicle's angle of inclination 262
Driving systemsDriving and parking

When towing a trailer, your vehicle's handling
characteristics will be different in comparison
with when driving without a trailer.
The vehicle/trailer combination:
R is heavier
R is restricted in its acceleration and
gradient-climbing capability
R has an increased braking distance
R is affected more by strong crosswinds
R demands more sensitive steering
R has a larger turning radius
This could impair the handling
characteristics.
When towing a trailer, always adjust your
speed to the current road and weather
conditions. Do not exceed the maximum
permissible speed for your vehicle/trailer
combination. Notes on towing a trailer
General notes R
Do not exceed the legally prescribed
maximum speed for vehicle/trailer
combinations in the relevant country.
This lowers the risk of an accident.
R Only install an approved trailer coupling on
your vehicle.
Further information on availability and on
installation is available from any authorized
Mercedes-Benz Center.
R The bumpers of your vehicle are not
suitable for installing detachable trailer
couplings.
R Do not install hired trailer couplings or
other detachable trailer couplings on the
bumpers of your vehicle.
R If you no longer need the ball coupling,
remove it from the ball coupling recess.
This will reduce the risk of damage to the
ball coupling.
i When towing a trailer, set the tire
pressure on the rear axle of the towing vehicle for a maximum load; see the tire
pressure table in the fuel filler flap
(Y
page 425).
Please note that when towing a trailer,
PARKTRONIC ( Ypage 222) and Blind Spot
Assist (Y page 243) are only available with
limitations, or not at all.
You will find installing dimensions and loads
under "Technical data" (Y page 456).
Driving tips i
Observe the information on ESP ®
trailer
stabilization (Y page 74) and on pulling
away with a trailer (Y page 170).
The maximum permissible speed for vehicle/
trailer combinations depends on the type of
trailer. Before beginning the journey, check
the trailer's documents to see what the
maximum permissible speed is. Observe the
legally prescribed maximum speed in the
relevant country.
For certain Mercedes-Benz vehicles, the
maximum permissible rear axle load is
increased when towing a trailer. See
"Technical data" to find out whether this
applies to your vehicle (Y page 457). If you
utilize any of the added maximum rear axle
load when towing a trailer, the vehicle/trailer
combination may not exceed a maximum
speed of 60 mph (100 km/h) for reasons
concerning the operating permit. This also
applies in countries in which the permissible
maximum speed for vehicle/trailer
combinations is above 60 mph (100 km/h).
When towing a trailer, your vehicle's handling
characteristics will be different in comparison
with when driving without a trailer.
Use the left-hand paddle shifter to shift into
a lower gear in good time on long and steep
downhill gradients.
i This also applies if you have activated
cruise control or DISTRONIC PLUS.
This will use the braking effect of the engine,
so that less braking will be required to
maintain the speed. This relieves the load on 264
Towing a trailerDriving and parking