190 Controls in detailAutomatic transmissionShifting into optimal gear range
Press and hold the inside of one of the
buttons1 on the steering wheel
(page 189).
The transmission will automatically select
the gear range suited for optimal
acceleration and deceleration. This will
involve shifting down one or more gears.
Canceling gear range limit
Press and hold the outside of one of the
buttons2 on the steering wheel
(page 189) until
D reappears in the
multifunction display.
The transmission will shift from the current
gear range directly to gear rangeD.
Driving tips
Accelerator position
Your driving style influences the
transmission’s shifting behavior:
Less throttle Earlier upshifting
More throttle Later upshifting
Kickdown
Use kickdown when you want maximum
acceleration.
Press the accelerator past the point of
resistance.
The transmission shifts into a lower
gear.
Ease on the accelerator when you have
reached the desired speed.
The transmission shifts up again.Stopping
When you stop briefly, e.g. at traffic lights:
Leave the transmission in gear.
Hold the vehicle with the brake.
When you stop longer with the engine
idling and/or on a hill:
Set the parking brake.
Shift into park positionP.
Maneuvering
When you maneuver in tight areas,
e.g. when pulling into a parking space:
Control the vehicle speed by gradually
releasing the brakes.
Accelerate gently.
Never abruptly step on the accelerator.
238 Controls in detailDriving systemsThe driving systems of your vehicle are de-
scribed on the following pages:
Cruise control, with which the vehicle
can maintain a preset speed.
Downhill Speed Regulation (DSR),
which supports you when you are
driving downhill.
Off-road driving program, which
supports you when you are driving
off-road.
Air suspension package* which adjusts
the vehicle suspension characteristics
automatically and controls the vehicle
level.
Parktronic*, which serves as a parking
aid.
For information on the ABS, BAS, EBB,
ESP®, and 4-ETS driving systems, see
“Driving safety systems” (
page 93).
Cruise control
The cruise control automatically maintains
the speed you set for your vehicle.
Use of cruise control is recommended for
driving at a constant speed for extended
periods of time. You can set or resume
cruise control at any speed above
20 mph (30 km/h).
The cruise control function is operated by
means of the cruise control lever.
The cruise control lever is the uppermost
lever on the left-hand side of the steering
column (
page 22).
iThe cruise control should not be acti-
vated during off-road driving.
Warning!
G
The cruise control is a convenience system
designed to assist the driver during vehicle
operation. The driver is and must remain at
all times responsible for the vehicle speed
and for safe brake operation.
Only use the cruise control if the road,
traffic, and weather conditions make it ad-
visable to travel at a steady speed.
The use of cruise control can be danger-
ous on winding roads or in heavy traffic
because conditions do not allow safe
driving at a steady speed.
The use of cruise control can be danger-
ous on slippery roads. Rapid changes in
tire traction can result in wheel spin and
loss of control.
Deactivate the cruise control when driv-
ing in fog.
The “Resume” function should only be oper-
ated if the driver is fully aware of the previ-
ously set speed and wishes to resume this
particular preset speed.
246 Controls in detailDriving systemsFor information on how to program the set
speed while driving, see “Adjusting Down-
hill Speed Regulation speed with DSR
switched on” (
page 246).Switching Downhill Speed Regulation off
Press DSR switch1 (
page 245).
The indicator lamp2 goes out.
The message
DSR off
appears in the
multifunction display.Adjusting Downhill Speed Regulation
speed with DSR switched on
With the DSR switched on (
page 245),
the speed setting can be changed using
the cruise control lever.
Cruise control lever1Increase set speed
2Reduce set speed
You can change the set speed between
3 - 10 mph (Canada: 4 - 18 km/h).
The cruise control lever is the uppermost
lever on the left-hand side of the steering
column (
page 23).
iIf the DSR is switched on at a speed
above 18 mph (Canada: 30 km/h), the
message
DSR Cannot be activated,
Speed too high
appears in the multi-
function display.
iAt a speed above approximately
21 mph (Canada approx.: 35 km/h),
the DSR is automatically switched off.
The message
DSR off
appears in the
multifunction display and an acoustic
signal sounds.
253 Controls in detail
Driving systems
Setting the raised level
Only select the raised level if appropriate
for the driving situation encountered.
Otherwise:
fuel consumption may increase
handling characteristics of the vehicle
may be unfavorable
Start the engine (
page 34).
If the indicator lamp2 is off:
Press switch1.
Indicator lamp2 flashes. The vehicle
adjusts to the raised level.
The following message appears in the mul-
tifunction display while the level is being
set:When the raised level is reached, the
following message appears in the multi-
function display for five seconds:
Indicator lamp2 (
page 252) comes on
continuously.
You can select the raised level at speeds
up to 40 mph (64 km/h). At higher speeds,
the message
Level selection not
permitted appears in the multifunction
display.Setting the highway/high-speed level
Start the engine (
page 34).
If the indicator lamp2 (page 252) is
on:
Press switch1 (
page 252).
Indicator lamp2 flashes. The vehicle
adjusts to the highway/high-speed
level.
The following message appears in the
multifunction display while the level is
being set:
iThe message can be cleared by press-
ing theèÿk or
buttonj on the multifunction
steering wheel.
iThe message can be cleared by press-
ing theèÿk or
buttonj on the multifunction
steering wheel.
257 Controls in detail
Driving systems
As your vehicle approaches an object, one
or more distance segments will come on,
depending on the distance. When the
second red distance segment illuminates,
you have reached the minimum distance.
Front area: An intermittent acoustic
warning will sound as the first red dis-
tance segment illuminates and a con-
stant acoustic warning lasting a
maximum of two seconds will sound for
the second red segment. The signal is
canceled when the automatic trans-
mission is set toP, or the parking brake
is activated.
Rear area: An intermittent acoustic
warning will sound as the first red dis-
tance segment illuminates and a con-
stant acoustic warning lasting a
maximum of two seconds will sound for
the second red segment. The signal is
canceled when the automatic trans-
mission is set toD, P, or the parking
brake is activated.
Switching Parktronic* system on/off
The Parktronic system can be switched off
manually using the control system
(
page 175).
As your vehicle approaches an object, and
three or more distance segments will
come on, the following message appears in
the multifunction display.
Pressæ orç to switch function
off.
Automatic trans-
mission position
Warning indicator
D
Front area activated
R or N
Front and rear area
activated
P
Neither activated
iThe display disappears automatically
within ten seconds if you continue to
approach an object.
If the vehicle comes closer to the ob-
ject and the first red distance segment
comes on, the display appears continu-
ously. It disappears if:
you clear the message by pressing
theèÿkor
buttonj on the multifunction
steering wheel
or
the distance is increased and the
third yellow distance segment goes
out.
258 Controls in detailDriving systems
Parktronic* system malfunction
If only the red distance segments illumi-
nate and an acoustic warning sounds,
there is a malfunction in the Parktronic
system. The Parktronic system will auto-
matically switch off after 20 seconds.
Have the Parktronic system checked
by an authorized Mercedes-Benz Light
Truck Center as soon as possible.
If only the red distance segments illumi-
nate and no acoustic warning sounds, the
Parktronic system sensors are dirty or
there is an interference from other radio or
ultrasonic signals. The Parktronic system
will automatically switch off after
20 seconds.
Switch off the ignition (
page 34).
Clean the Parktronic system sensors
(page 377).
Switch on the ignition.
or
Check the Parktronic system operation
at another location to rule out interfer-
ence from outside radio or ultrasonic
signals.
iThe message
Parktronic on
reappears
as soon as the system senses that you
get closer to the object again, even if
you cleared the message before by
pressingèÿk or
buttonj on the multifunction
steering wheel.
iThe Parktronic system is automatically
switched on when the ignition is
switched on.
Vehicles with original equipment
Mercedes-Benz Trailer Hitch Kit:
The rear Parktronic sensor will auto-
matically disengage when towing a
trailer as soon as the electrical connec-
tion between the vehicle and the trailer
has been established.
280 Controls in detailUseful features
You can take and place telephone calls us-
ing thes andt buttons on the
steering wheel. To carry out other tele-
phone functions, use the control system
(page 178).
See separate instruction manual for infor-
mation on how to operate the telephone.
Tele Aid*
Shortly after the completion of your Tele
Aid acquaintance call, you will receive a
user ID and password. By visiting
www.mbusa.com and selecting “Tele Aid”
(USA only), you will have access to account
information, remote door unlock and
more.
Warning!
G
Please do not forget that your primary re-
sponsibility is to drive the vehicle. A driver’s
attention to the road must always be
his /her primary focus when driving. For
your safety and the safety of others, we rec-
ommend that you pull over to a safe location
and stop before placing or taking a tele-
phone call.
If you choose to use the telephone
1 while
driving, please use the hands-free device
and only use the telephone when road,
weather and traffic conditions permit. Some
jurisdictions prohibit the driver from using a
cellular telephone while driving a vehicle.
Only operate the Modular COMAND
System
1 if road, weather and traffic condi-
tions permit.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet (approximate-
ly 14 m) every second.
1Observe all legal requirements
!The initial activation of the Tele Aid
system may only be performed by
completing the subscriber agreement
and placing an acquaintance call using
the ¡button. Failure to complete
either of these steps will result in a
system that is not activated.
If you have any questions regarding
activation, please call the Response
Center at 1-800-756-9018 (in the USA)
or 1-888-923-8367 (in Canada).
281 Controls in detail
Useful features
The Tele Aid system
(Tele
matic A
larm I
dentification on
D
emand)
The Tele Aid system consists of three
types of response:
automatic and manual emergency
roadside assistance
information
The Tele Aid system is operational provid-
ing that the vehicle’s battery is charged,
properly connected, not damaged and cel-
lular and GPS coverage is available.
The speaker volume of a Tele Aid call can
be adjusted when using the volume control
on the Modular COMAND System or on the
multifunction steering wheel. To raise, turn
the rotary volume control on Modular
COMAND System clockwise or press
buttonæ on the multifunction steering
wheel. To lower, turn the rotary volume
control on Modular COMAND System con-trol counterclockwise or press
buttonç on the multifunction steering
wheel.
To activate, press the SOS button, the
Roadside Assistance button• or
the Information button¡, depend-
ing on the type of response required.iThe SOS button is located in the over-
head control panel.
The Roadside Assistance button•
and the Information button¡ are
located below the center armrest
cover.!The Tele Aid system utilizes the cellular
network for communication and the
GPS (G
lobal P
ositioning S
ystem) satel-
lites for vehicle location. If either of
these signals are unavailable, the
Tele Aid system may not function and if
this occurs, assistance must be sum-
moned by other means.
iWhen a Tele Aid call has been initiated,
the Modular COMAND System audio is
muted and the selected mode (radio,
CD etc.) pauses. The optional cellular
phone (if installed) inserted in cradle
switches off. If you must use this
phone, we recommend that you use it
only with the vehicle at a standstill in a
safe location. Remove the phone from
the cradle and place the call. The navi-
gation* system (if engaged) will contin-
ue to run. The display in the instrument
cluster is available for use, and spoken
commands are only available by press-
ing the RPT button on the Modular
COMAND System. A pop-up window
will appear in the Modular COMAND
System display to indicate that a Tele
Aid call is in progress. After the TeleAid
call has ended, the optional cellular
phone inserted in the cradle switches
on again. A PIN entry might be neces-
sary.