wheel MERCEDES-BENZ GL 2016 Repair Manual

R
Drive quickly to overcome the rolling resist-
ance. Otherwise the vehicle's wheels could
become stuck in loose ground. R
Drive in the tracks of other vehicles if pos-
sible. Make sure that: -
the tire ruts are not too deep. -
the sand is sufficiently firm. -
the ground clearance of the vehicle is
sufficient.
Tire ruts and gravel roads
! Check that the ruts are not too deep and
that your vehicle has sufficient clearance.
Otherwise, your vehicle could be damaged
or bottom out and get stuck.
Observe the following rules when driving
along ruts in off-road terrain or on roads with
loose gravel: R
Select a higher vehicle level. R
Avoid high engine speeds. R
Shift to a lower gear using the left-hand
steering wheel paddle shifter. R
Drive slowly. R
Where ruts are too deep, drive with the
wheels of one side on the center grassy
area, if possible.
Driving over obstacles
! Obstacles could damage the floor of the
vehicle or components of the chassis. Ask
passengers for guidance when driving over
large obstacles. The passenger should
always keep a safe distance from the vehi-
cle when doing so in order to avoid injury as
a result of unexpected vehicle movements.
After driving off-road or over obstacles,
check the vehicle for possible damage,
especially to the underbody and the com-
ponents of the chassis. Observe the following rules when driving over
tree stumps, large stones and other obsta-
cles: R
Select the LOW RANGE off-road gear
( Y
page 259). R
Raise the vehicle level. R
Avoid high engine speeds. R
Shift to a lower gear using the left-hand
steering wheel paddle shifter. R
Drive very slowly. R
Drive straight over the center of obstacles.
Traveling uphill
Approach/departure angle
G WARNING
If you drive on a steep incline at an angle or
turn when driving on an incline, the vehicle
could slip sideways, tip and rollover. There is a
risk of an accident.
Always drive on a steep incline in the line of
fall (straight up or down) and do not turn the
vehicle. R
Observe the rules on off-road driving. R
Do not drive at an angle on slopes, inclines
or gradients, but instead follow the direct
line of fall. R
When driving down an incline, make use of
the engine's braking effect. Observe the
engine speed; do not overrev the engine. Driving tips 201
Driving an d parking Z

R
Before driving on extreme uphill and down-
hill gradients, select the LOW RANGE off-
road gear ( Y
page 259).R
Drive slowly. R
Avoid high engine speeds. Drive at appro-
priate engine speeds (maximum
3,000 rpm). R
Use the left-hand steering wheel paddle
shifter to shift into a lower gear in good time
on long and steep downhill gradients. R
Check the brakes after prolonged off-road
driving.
Hill start assist will aid you when pulling away
on a hill. For further information about hill
start assist, see ( Y
page 168).
Do not switch to transmission position N
when driving off-road. If you try to brake the
vehicle using the service brake, you could
lose control of the vehicle. If the gradient is
too steep for your vehicle, drive back down in
reverse gear.
Always observe the approach/departure
angle values ( Y
page 456).
Maximum gradient-climbing capability
Always observe the maximum gradient climb-
ing ability values ( Y
page 456).
Hilltops
When driving up an uphill gradient, slightly
reduce pressure on the accelerator immedi-
ately before reaching the brow of the hill.
Make use of the vehicle's own impetus to
travel over the brow.
This style of driving prevents: R
the vehicle from lifting off the ground on the
brow of a hill R
the vehicle from traveling too quickly down
the other side
Driving downhill R
Drive slowly. R
Do not drive at an angle down steep
inclines. Steer into the line of fall and drive with the front wheels aligned straight. Oth-
erwise, the vehicle could slip sideways, tip
and rollover. R
Shift to a lower gear using the left-hand
paddle shifter before tackling steep down-
hill gradients. R
Activate DSR. If this is not sufficient, brake
gently. When doing so, make sure that the
vehicle is facing in the direction of the line
of fall. R
Check that the brakes are working normally
after a long downhill stretch.
i The special off-road ABS setting enables a
precise, brief and repeated locking of the
front wheels. This causes them to dig into
loose earth. Be aware that the front wheels
easily skid across the ground surface if
completely braked and therefore lose their
ability to steer.
Driving systems
Intelligent Drive
Mercedes-Benz Intelligent Drive stands for
innovative driver assistance and safety sys-
tems which enhance comfort and support the
driver in critical situations. With these intelli-
gent co-ordinated systems Mercedes-Benz
has set a milestone on the path towards
autonomous driving.
Mercedes-Benz Intelligent Drive embraces all
elements of active and passive safety in one
well thought out system – for the safety of the
vehicle occupants and that of other road
users.
Further information on driving safety systems
( Y
page 68).
Cruise control
General notes
Cruise control maintains a constant road
speed for you. It brakes automatically in order
to avoid exceeding the set speed. You must202
Driving systems
Driving and parking

select a lower gear in good time on long and
steep downhill gradients, especially if the
vehicle is laden or towing a trailer. By doing
so, you will make use of the braking effect of
the engine. This relieves the load on the brake
system and prevents the brakes from over-
heating and wearing too quickly.
Use cruise control only if road and traffic con-
ditions make it appropriate to maintain a
steady speed for a prolonged period. You can
store any road speed above 20 mph
(30 km/h).
i Cruise control should not be activated
when driving off-road.
Important safety notes If you fail to adapt your driving style, cruise
control can neither reduce the risk of an acci-
dent nor override the laws of physics. Cruise
control cannot take into account the road,
traffic and weather conditions. Cruise control
is only an aid. You are responsible for the dis-
tance to the vehicle in front, for vehicle speed,
for braking in good time and for staying in
your lane.
Do not use cruise control: R
in road and traffic conditions which do not
allow you to maintain a constant speed e.g.
in heavy traffic or on winding roads R
on slippery road surfaces. Braking or accel-
erating could cause the drive wheels to lose
traction and the vehicle could then skid R
when there is poor visibility, e.g. due to fog,
heavy rain or snow
If there is a change of drivers, advise the new
driver of the speed stored. Cruise control lever
C
To activate or increase speed D
To activate or reduce speed

Do not use DISTRONIC PLUS: R
in road and traffic conditions which do not
allow you to maintain a constant speed e.g.
in heavy traffic or on winding roads R
on slippery road surfaces. Braking or accel-
erating could cause the drive wheels to lose
traction and the vehicle could then skid R
when 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: R
there is dirt on the sensors or anything else
covering the sensors R
there is snow or heavy rain R
there is interference by other radar sources R
there are strong radar reflections, for
example, in parking garages
If DISTRONIC PLUS no longer detects a vehi-
cle in front, DISTRONIC PLUS may unexpect-
edly accelerate the vehicle to the stored
speed.
This speed may: R
be too high if you are driving in a filter lane
or an exit lane R
be so high when driving in the right-hand
lane that you overtake vehicles in the left-
hand lane R
be 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
C
To activate or increase speed D
To activate or reduce speed

For information about driving off-road, see
( Y
page 198).
G WARNING
When the vehicle is being lowered, people
could become trapped if their limbs are
between the vehicle body and the wheels or
underneath the vehicle. There is a risk of
injury.
Make sure no one is underneath the vehicle or
in the immediate vicinity of the wheel arches
when the vehicle is being lowered.
G WARNING
When you drive with the vehicle raised, the
driving characteristics could be impaired by
the vehicle's raised center of gravity. The vehi-
cle could rollover more easily, for example on
a bend. There is a risk of an accident.
Always select as low a vehicle level as possi-
ble and adjust your driving style.
G WARNING
When you drive with the chassis lowered or
raised, the vehicle's braking and driving char-
acteristics can be significantly impaired. You
could also exceed the permissible vehicle
height if the chassis is raised. There is a risk of
an accident.
Adjust the vehicle level before pulling away.
G WARNING
Due to the high center of gravity, the vehicle
may start to skid and roll over in the event of
an abrupt steering maneuver and/or when
the vehicle's speed is not adapted to the road
conditions. There is a risk of an accident.
Always adapt your speed and driving style to
the vehicle's driving characteristics and to the
prevailing road and weather conditions.
! When driving on extremely rough terrain,
select a high vehicle level in good time.
Make sure there is always sufficient ground
clearance. You will otherwise damage the
vehicle. R
Utility vehicles have a significantly higher
rollover rate than other types of vehicles.
Failure to operate this vehicle safely may
result in an accident, rollover of the vehicle,
and severe or fatal injury. R
In a rollover crash, an unbelted person is
significantly more likely to die than a per-
son wearing a seat belt.
You and all vehicle occupants should
always wear your seat belts.
Basic settings The extent to which the vehicle is raised or
lowered depends on the basic setting selec-
ted.
Select: R
highway/high-speed level for driving on
normal roads R
off-road level 1 for driving on easily nego-
tiable off-road terrain R
off-road level 2 for driving on normal off-
road terrain R
off-road level 3 for freeing the vehicle in
particularly rough terrain at low speeds
only
The individual vehicle levels differ from high-
way level as follows: R
highway level: +/–0 in (+/–0 mm) R
high-speed level: –0.6 in (–15 mm) R
off-road level 1: + 1.2 in (+ 30 mm) R
off-road level 2: + 2.3 in (+ 60 mm) R
off-road level 3: + 3.6 in (+ 90 mm)
Highway/high-speed level
! Make sure that there is enough ground
clearance when the vehicle is being low-
ered. It could otherwise hit the ground,
damaging the underbody.214
Driving systems
Driving and parking

C
Selector wheelD
To raise the level

cle could rollover more easily, for example on
a bend. There is a risk of an accident.
Always select as low a vehicle level as possi-
ble and adjust your driving style.
G WARNING
When you drive with the chassis lowered or
raised, the vehicle's braking and driving char-
acteristics can be significantly impaired. You
could also exceed the permissible vehicle
height if the chassis is raised. There is a risk of
an accident.
Adjust the vehicle level before pulling away.
G WARNING
Due to the high center of gravity, the vehicle
may start to skid and roll over in the event of
an abrupt steering maneuver and/or when
the vehicle's speed is not adapted to the road
conditions. There is a risk of an accident.
Always adapt your speed and driving style to
the vehicle's driving characteristics and to the
prevailing road and weather conditions.
! When driving on extremely rough terrain,
select a high vehicle level in good time.
Make sure there is always sufficient ground
clearance. You will otherwise damage the
vehicle.
! When you raise the vehicle in such a way
that not all wheels have contact with the
ground, remove the SmartKey from the
ignition lock. R
Utility vehicles have a significantly higher
rollover rate than other types of vehicles.
Failure to operate this vehicle safely may
result in an accident, rollover of the vehicle,
and severe or fatal injury. R
In a rollover crash, an unbelted person is
significantly more likely to die than a per-
son wearing a seat belt.
You and all vehicle occupants should
always wear your seat belts. General notes
Further information about "Driving off-road"
( Y
page 198).
Level control adapts the vehicle level auto-
matically to the current operating and driving
situation. This results in reduced fuel con-
sumption and improved handling.
If y
ou select ADS comfort mode ( Y
page 218),
the vehicle is lowered to high-speed level as
the speed increases. As the vehicle speed
decreases, the vehicle is raised back up to
highway level.
If you select ADS sport mode ( Y
page 218),
the vehicle skips highway level and lowers
directly to high-speed level depending on the
basic setting ( Y
page 220).
Make changes to the vehicle level while the
vehicle is in motion. This enables the vehicle
to adjust to the new level as quickly as pos-
sible.
The vehicle level may change visibly if you
park the vehicle and the outside temperature
changes. If the temperature drops, the vehi-
cle level is lower; with an increase in temper-
ature, the vehicle level rises.
If you unlock the vehicle or open a door, the
vehicle begins to compensate for load dis-
crepancies while still parked. However, for
significant level changes, such as after the
vehicle has been stationary for a long period,
the engine must be on. For safety reasons,
the vehicle is only lowered when the doors are
closed. Lowering is interrupted if a door is
opened, and it continues once the door has
been closed.
Basic settings (excluding Mercedes-AMG
vehicles)
The extent to which the vehicle is raised or
lowered depends on the basic setting selec-
ted. Sele ct raised level for off-road driving or
hi g
hway/high-speed level for normal roads.220
Driving systems
Driving and parking

The individual vehicle levels differ from high-
way level as follows: R
highway level: +/–0 in (+/–0 mm) R
high-speed level: –0.6 in (–15 mm) R
raised level: +2.3 in (+60 mm)
Basic settings Mercedes-AMG vehicles
The extent to which the vehicle is raised or
lowered depends on the AMG adaptive sport
suspension setting selected. Select the
raised level for off-road driving or highway/
high-speed level for normal roads.
The raised level corresponds to a vehicle level
raised by 50 mm when compared with high-
way level in comfort mode.
Raised level
Only select raised level if this is appropriate
for the road conditions. Otherwise, fuel con-
sumption may increase and handling may be
affected. X
Start the engine.
If indicator lamp D is not lit:X
Press button C .
Indicator lamp D flashes. The vehicle rises
to raised level. During the adjustment, the Vehicle Rising
message, for example, appears in the multi-
function display.
If you press the 8 or v button on the
multifunction steering wheel, the message
will disappear.
Once the vehicle has reached raised level,
indicator lamp D remains lit. The Vehicle
Rising message disappears from the multi-
function display.
If you try to select raised level at a speed
above 40 mph (64 km/ h) , the Drive More
Slowly message appears in the multifunction
display.
Highway/high-speed level
! Make sure that there is enough ground
clearance when the vehicle is being low-
ered. It could otherwise hit the ground,
damaging the underbody.
C
Level control button
D
Level control indicator lamp X
Start the engine. Driving systems 221
Driving and parking Z

If indicator lamp D is lit:X
Press button C .
Indicator lamp D flashes. The vehicle is
adjusting to highway/high-speed level.
During the adjustment, the Lowering mes-
sage, for example, appears in the multifunc-
tion display.
If you press the 8 or v button on the
multifunction steering wheel, the message
will disappear.
Once highway level has been reached, indi-
cator lamp D goes out. The Lowering
mes-
sage disappears from the multifunction dis-
play.
The vehicle automatically adjusts to highway
level when you: R
drive faster than 50 mph (80 km/h) R
drive between 40 mph (64 km/h) and
50 mph (80 km/h) for approximately
20 seconds
Depending on the ADS mode selected
( Y
page 218), the vehicle is lowered to high-
speed level at high speeds.
AMG adaptive sport suspension sys-
tem
Important safety notes
G WARNING
When the vehicle is being lowered, people
could become trapped if their limbs are
between the vehicle body and the wheels or underneath the vehicle. There is a risk of
injury.
Make sure no one is underneath the vehicle or
in the immediate vicinity of the wheel arches
when the vehicle is being lowered.
G WARNING
The vehicle is lowered if: R
you have selected the Comfort or Sport
suspension tuning and R
lock the vehicle after switching off the
engine
Persons in the vicinity of the wheel arch or the
underbody may thus become trapped. There
is a risk of injury.
Make sure that nobody is in the vicinity of the
wheel arch or the underbody when you switch
off the engine.
! The vehicle is lowered by approximately
10 mm if: R
you have selected the Sport or Comfort
suspension tuning and R
you switch off the engine and then R
lock the vehicle
When parking, position your vehicle so that
it does not make contact with the curb as
the vehicle is lowered. Your vehicle could
otherwise be damaged.
Vehicle level
Level control adapts the vehicle level auto-
matically to the current operating and driving
situation. Level control ensures the best pos-
sible suspension and constant ground clear-
ance, even with a laden vehicle. This improves
driving safety and fuel consumption.
The AIRMATIC package and ACTIVE CURVE
SYSTEM are always components of AMG
adaptive suspension system ( Y
page 218).
Due to the sportier suspension settings com-
pared to standard vehicles, the levels and
speed thresholds for sinking and raising the
vehicle are different.222
Driving systems
Driving and parking

In Comfort and Sport driving modes, after
locking the vehicle it lowers to the Sport+
level. When locking the vehicle at the raised
level, the vehicle does not lower.
The settings will remain stored after you
switch off the engine. When starting the
engine, the selected setting, e.g. AMG adap-
tive suspension system Comfort, is restored.
i The vehicle level may change visibly if you
park the vehicle and the outside tempera-
ture changes. If the temperature drops, the
vehicle level lowers; with an increase in
temperature, the vehicle level rises.
Suspension tuning General notes
The electronically controlled damping system
works continuously. This improves driving
safety and ride comfort.
The damping is tuned individually to each
wheel and depends on: R
your driving style R
the road surface conditions R
your individual selection of Sport, Sport +
or Comfort
Your selection remains stored even if you
remove the SmartKey from the ignition lock.
Sport mode
The firmer suspension tuning in Sport mode
ensures even better contact with the road.
Select this mode when employing a sporty
driving style, e.g. on winding country roads. X
Press button C once.
Indicator lamp D lights up. You have selec-
ted Sport mode.
The AMG Suspension System SPORT mes-
sage appears in the multifunction display.
Sport + mode
The very firm setting of the suspension tuning
in Sport + mode ensures the best possible
contact with the road. Select this mode pref-
erably when driving on race circuits.
If indicator lamps