
Indicator and warning display
G
WARNING
Blind Spot Assist does not react to:
R vehicles overtaken too closely on the side,
placing them in the blind spot area
R vehicles approaching and driving by with a
speed difference of more than 6.8 mph
(11 km/h)
As a result, Blind Spot Assist may not give
warnings in such situations. There is a risk of
an accident.
Always observe the traffic conditions
carefully, and maintain a safe lateral distance. 0043
Yellow indicator lamp/red warning lamp
When Active Blind Spot Assist is activated,
indicator lamp 0043in 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 monitoring
range of Blind Spot Assist at speeds above
20 mph (30 km/h), warning lamp 0043on the
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Assist is no longer active.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 0043
Yellow indicator lamp/red warning lamp
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 0043flashes. If
the turn signal remains on, vehicles detected
are indicated by the flashing of red warning
lamp 0043. There are no further warning tones.
Switching on Blind Spot Assist 0043
Yellow indicator lamp/red warning lamp Driving systems
187Driving and parking Z

X
Make sure that Blind Spot Assist is
activated in the on-board computer
(Y page 213).
X Turn the SmartKey to position
2(Y page 139) in the ignition lock.
Warning lamps 0043in the exterior mirrors
light up red for approximately
1.5 seconds and then turn yellow. HOLD function
General notes The HOLD function can assist the driver in the
following situations:
R when pulling away, especially on steep
slopes
R when maneuvering on steep slopes
R when waiting in traffic
The vehicle is kept stationary without the
driver having to depress the brake pedal.
The braking effect is canceled and the HOLD
function deactivated when you depress the
accelerator pedal to pull away.
i Do not use the HOLD function when
driving off-road, on steep uphill or downhill
gradients or on slippery or loose surfaces.
The HOLD function cannot hold the vehicle
on such surfaces.
Activation conditions You can activate the HOLD function if:
R the vehicle is stationary.
R the engine is running or it has been
switched off by the ECO start/stop
function (AMG vehicles).
R the engine is running.
R the driver's door is closed or your seat belt
is fastened.
R the transmission is in position D,Ror N.
R DISTRONIC PLUS is deactivated. Activating the HOLD function The vehicle's brakes are applied when the
HOLD function is activated. For this reason,
deactivate the HOLD function while in the car
wash or while towing.
X
Make sure that the activation conditions
are met.
X Depress the brake pedal.
X Quickly depress the brake pedal further
until 00D9 appears in the multifunction
display.
The HOLD function is activated. You can
release the brake pedal.
i If depressing the brake pedal the first
time does not activate the HOLD function,
wait briefly and then try again.
Deactivating the HOLD function G
WARNING
When leaving the vehicle, it can still roll away
despite being braked by the HOLD function if:
R there is a malfunction in the system or in
the voltage supply.
R the HOLD function has been deactivated by
pressing the accelerator pedal or the brake
pedal, e.g. by a vehicle occupant.
R the electrical system in the engine
compartment, the battery or the fuses have
been tampered with.
R the battery is disconnected
There is a risk of an accident.
If you wish to exit the vehicle, always turn off
the HOLD function and secure the vehicle
against rolling away.
The HOLD function is deactivated
automatically if:
R you accelerate and the transmission is in
position Dor R.
R you shift the transmission to position P.188
Driving systemsDriving and parking

vehicle are safe before maneuvering, parking
or pulling away. There must not be any
persons, animals or objects in the area in
which you are maneuvering.
PARKTRONIC does not take into account any
persons or objects located below or above
the detection range. As a result,
PARKTRONIC cannot warn you about objects
in this area.
PARKTRONIC is activated automatically when
you:
R switch on the ignition
R shift the transmission to position D,Ror N
R release the 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.
Range of the sensors General notes
0043
Example: sensors in the front bumper,
left-hand side Side view Top view
The sensors must be free from dirt, ice or
slush. Otherwise, they may not function
correctly. Clean the sensors regularly, taking
care not to scratch or damage them
(Y
page 291).
Front sensors Center Approximately 40 in
(approximately 100 cm
from brush guard)
Corners Approximately 24 in
(approximately 60cm)
Rear sensors
Center Approximately 36 in
(approximately 90 cm)
from spare wheel
Corners Approximately 32 in
(approximately 80 cm)
Minimum distance
Center Approximately 8 in
(approximately 20 cm)
Corners Approximately 8 in
(approximately 20 cm)
If there is an obstacle within this range, the
relevant warning displays light up and a
warning tone sounds. If the distance falls
below the minimum, the distance may no
longer be shown.190
Driving systemsDriving and parking

Warning displays
Warning display for the front area
0043
Segments on the left-hand side of the
vehicle
0044 Segments on the right-hand side of the
vehicle
0087 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. PARKTRONIC is operational if
yellow segments showing operational
readiness 0087light up.
The selected transmission position and the
direction in which the vehicle is rolling
determine which warning display is active
when the engine is running. Transmission
position Warning display
D
Front area activated
R,
Nor the vehicle
is rolling
backwards Rear and front areas
activated
P
No areas activated One or more segments light up as the vehicle
approaches an obstacle, depending on the
vehicle's distance from the obstacle.
From the:
R
sixth segment onwards, you will hear an
intermittent warning tone for
approximately two seconds.
R seventh segment onwards, you will hear a
warning tone for approximately two
seconds. This indicates that you have now
reached the minimum distance.
Deactivating/activating PARKTRONIC 0043
Indicator lamp
0044 To deactivate/activate PARKTRONIC
If indicator lamp 0043lights up, PARKTRONIC is
deactivated.
i PARKTRONIC is automatically activated
when you turn the SmartKey to position 2
in the ignition lock.
Towing a trailer PARKTRONIC is deactivated for the rear area
when you establish an electrical connection
between your vehicle and a trailer. Driving systems
191Driving and parking Z

Problems with PARKTRONIC
Problem Possible causes/consequences and
0050
0050Solutions 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 a few
seconds, and the
indicator lamp in the
PARKTRONIC button
lights up. PARKTRONIC has malfunctioned and has switched off.
X
If 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 a few
seconds. The PARKTRONIC sensors are dirty or there is interference.
X
Clean the PARKTRONIC sensors (Y page 291).
X Switch the ignition back on. The problem may be caused by an external source of radio or
ultrasound waves.
X
See if PARKTRONIC functions in a different location. Rear view camera
Important safety notes The rear view camera is only an aid. It is not
a replacement for your attention to your
immediate surroundings. You are always
responsible for safe maneuvering and
parking. When maneuvering or parking, make
sure that there are no persons, animals or
objects in the area in which you are
maneuvering.
Under the following circumstances, the rear
view camera will not function, or will function
in a limited manner:
R the rear door is open
R in heavy rain, snow or fog
R at night or in very dark places
R if the camera is exposed to very bright light
R if the area is lit by fluorescent light or LED
lighting (the display may flicker) R
if there is a sudden change in temperature,
e.g. when driving into a heated garage in
winter
R if the camera lens is dirty or obstructed
R if the rear of your vehicle is damaged. In
this event, have the camera position and
setting checked at a qualified specialist
workshop Mercedes-Benz recommends
that you use an authorized Mercedes-Benz
Center for this purpose 192
Driving systemsDriving and parking

Shifting the transfer case
Important safety notes
G
WARNING
When the transfer case is in the neutral
position, power transmission to the driven
wheels is interrupted. As a result, the vehicle
could roll away. There is a risk of an accident.
Secure the vehicle with the parking brake, and
on uphill or downhill gradients, also secure it
with a device such as a wheel chock.
Always wait for the gear change process from
HIGH RANGE toLOW RANGE and from
LOW RANGE toHIGH RANGE to complete.
Do not turn off the engine while changing gear
and do not shift the automatic transmission
to another gear.
General notes 0043
Current shift range 0043
Indicator lamp
0044 LOW RANGE button
Switching on the off-road gear ratio
! Only carry out the gear selection if:
R the engine is running.
R the vehicle is rolling. R
the automatic transmission is in selector
lever position N.
R you are driving no faster than 25 mph
(40 km/h).
You could otherwise damage the transfer
case. i
AMG vehicles: to shift the transfer case
to LOW RANGE, deactivate the ECO start/
stop function (Y page 142).
X Press LOW RANGE button 0044.
When the shift procedure is complete, the
LOW RANGE LOW RANGE transfer case position appears
in the multifunction display.
Indicator lamp 0043lights up.
X Shift the transmission to position D.
Switching off the off-road gear ratio G
WARNING
When the transfer case is in the neutral
position, power transmission to the driven
wheels is interrupted. As a result, the vehicle
could roll away. There is a risk of an accident.
Secure the vehicle with the parking brake, and
on uphill or downhill gradients, also secure it
with a device such as a wheel chock.
! Only carry out the gear selection if:
R the engine is running.
R the vehicle is rolling.
R the automatic transmission is in selector
lever position N.
R you are driving no faster than 43 mph
(70 km/h). 194
Off-road driving systemsDriving and parking

Differential locks improve the traction of the
vehicle.
Your vehicle is equipped with a differential
lock each for:
R the transfer case: this controls the balance
between the front and rear axles.
R the rear axle: this controls the balance
between the wheels on the rear axle.
R the front axle: this controls the balance
between the wheels on the front axle.
Information on differential and
differential locks When the vehicle drives around a curve, the
wheels on the outside of the curve must cover
a greater distance. Therefore, the wheels turn
more rapidly than on the inside. The
differential, a transmission in the drive train,
compensates for these different rotational
speeds, making cornering possible.
The disadvantage of a differential is that more
power is transferred to the wheels that have
the least grip. An example: a wheel of a driven
axle is on a snow-covered surface and
therefore does not have any traction. The
differential causes this wheel to be subjected
to the strongest driving force, as the flow of
force takes the path of least resistance. The
opposite wheel on this axle, however, which
stands on firm ground and could therefore
allow propulsion, receives no driving power.
4ETS compensates for this disadvantage.
4ETS provides good steerability by
automatically braking the spinning wheel.
4ETS provides the wheel on the firm surface
with more drive force, which in turn provides
propulsion.
ESP® and 4ETS are traction systems that are
ideal for road driving and suitable for light off-
road driving. The LOW RANGEoff-road gear
also improves off-road capability.
Moreover, the more difficult conditions in off-
road driving require further measures such as
locking one or several differentials. Your
vehicle is equipped with three differential
locks: R
a central differential lock for the transfer
case,
R a differential lock for the front axle and
R a differential lock for the rear axle.
Each differential lock can be engaged with the
respective switch on the center console. If
the transfer case differential is disabled, the
front and rear wheels turn at the same speed.
If the differential for the rear axle is locked,
both rear wheels turn at the same speed,
regardless of their individual torques. Please
note that activating the differential locks
severely restricts the vehicle's steerability.
Please note that the functions of the
differential are absolutely necessary for
driving on paved roads. The differential locks
must never be engaged when driving on
paved roads. Otherwise, the vehicle may not
be steerable and you could lose control of the
vehicle. The differential locks must therefore
only be engaged when driving off-road. You
may only engage the differential locks if the
functions of the 4ETS and ESP ®
driving
systems and the LOW RANGEoff-road gear
are insufficient.
i The differential locks are only available in
the LOW RANGE off-road gear.
Engaging the differential locks Important safety notes
G
WARNING
When differential locks are engaged on a firm,
high-grip surface, the vehicle's steerability is
greatly impaired. In particular, engaging the
differential locks when cornering could lead
to you losing control of the vehicle. There is a
risk of an accident.
Disengage the differential locks immediately
on firm surfaces with good grip. G
WARNING
When the differential locks are engaged, ABS,
4ETS, ESP ®
and BAS are deactivated. As a
result, the wheels could lock when braking 196
Off-road driving systemsDriving an
d parking

and the braking distance is increased. There
is a risk of an accident.
Disengage the differential locks immediately
on firm surfaces with good grip.
! Only engage the differential locks when:
R you are driving at walking pace.
R the driven wheels are not spinning.
R you are not driving on a firm road surface.
General notes
The switches are located on the center
console. 0043
Function indicator lamps (red)
0044 Differential lock for the front axle
0087 Differential lock for the transfer case
0085 Differential lock for the rear axle
0083 Activation indicator lamps (yellow)
Engage the differential locks:
R off-road
R to deactivate ABS, 4ETS, ESP ®
and BAS
while off-road
R when fording
For further information on driving off-road,
see (Y page 164).
i You can only engage the differential locks
if the transfer case is in the LOW RANGE
off-road driving position (Y page 193).
i You can activate the differential locks in
the following order 0087,0085,0044. Differential lock for the transfer case X
To engage: switch the transfer case to the
LOW RANGE off-road driving position
(Y page 194).
X Press switch 0087.
When the transfer case is in the LOW
RANGE off-road driving position, the yellow
activation indicator lamp below switch 0087
lights up.
The 00BB warning lamp in the instrument
panel lights up.
When the differential is locked, the red
function indicator lamp above switch 0087
lights up.
In the multifunction display you see the:
ABS not available Differential
ABS not available Differential
Locked Locked message.
The 00BB002500E5 warning lamps in the
instrument cluster light up.
The differential lock for the transfer case is
engaged.
4ETS, ESP ®
, BAS and ABS are deactivated.
The vehicle's ability to steer is severely
restricted. Drive carefully and accelerate
gently for optimum traction.
i You can now engage the differential lock
for rear axle 0085and the differential lock for
front axle 0044as required.
Differential lock for the rear axle X
To engage: press switch 0085.
Yellow activation indicator lamp 0083lights
up first, followed by red function indicator
lamp 0043of switch 0085.
The differential lock for the rear axle is
engaged.
Differential lock for the front axle X
To engage: press switch 0044.
First, the yellow activation indicator lamp
lights up, followed by the red function
indicator lamp. Off-road driving systems
197Driving and parking Z