203 Controls in detail
Automatic transmission
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 for a longer period of time
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.
Effect
ç
The transmission shifts through
second gear only.
Allows the use of engine’s
braking power when driving:
on steep downgrades
in mountainous regions
under extreme operating
conditions
æ
The transmission operates in
first gear only.
For maximum use of engine’s
braking effect on very steep or
lengthy downgrades.
204 Controls in detailAutomatic transmissionRocking the vehicle
Rocking the vehicle by shifting betweenD
andR can help free a vehicle stuck in mud
or snow. The engine control system of this
vehicle electronically limits shifting
betweenD andR to very low speeds
(i.e. approx. 2 mph). To shift betweenD
andR, move the gear selector lever past
the resistance point up or down.
Hill start assist system
On uphill grades, the hill start assist
system maintains the pressure in the
brake system for approximately 1 second
after you have released the brake pedal.
Therefore, you can start off smoothly with-
out the vehicle moving immediately after
releasing the brake pedal.
The hill start assist system is inactive
when driving downhill
with the transmission in neutral
position N
with the parking brake setWorking on the vehicle
Automatic shift program
The program mode selector switch is
located on the upper part of the center
console.Program mode selector switchC Comfort For comfort driving
S Sport For standard driving
Warning!
G
The hill start assist system is not designed
to function as a parking brake and does not
prevent the vehicle from moving when
parked on an incline.
Always set the parking brake in addition to
shifting to park position P.iIf the ESP
® has switched off due to a
malfunction, the hill start assist system
is also unavailable.
Warning!
G
When working on the vehicle, set the
parking brake and shift to park positionP.
Otherwise the vehicle could roll away.
210 Controls in detailGood visibilityActivating exterior rear view mirror
parking position*
Follow these steps to activate the exterior
rear view mirror parking position, so that
the passenger-side exterior rear view mir-
ror will be turned downward to the stored
position.
Make sure that you have stored a park-
ing position for the passenger-side
exterior rear view mirror (
page 146).
Make sure the
Mirror adjustment
parking aid function in the
Convenience
submenu of the control
system is set to
on (page 190).
Start the engine (
page 53).1Driver’s side exterior rear view mirror
button
2Passenger-side exterior rear view
mirror button
Set the automatic transmission in
reverse gear R.
The passenger-side exterior rear view
mirror turns downward to the stored
position (
page 146) if the passen-
ger-side exterior rear view mirror is se-
lected.
The indicator lamp in button 2 should
come on when you select reverse
gearR.
If the passenger-side exterior rear view
mirror is not selected, press button 2.
The exterior rear view mirror returns to its
previous stored driving position:
when you switch off the ignition
10 seconds after you have put the
automatic transmission out of reverse
gear R
Approximately 15 seconds later, the
indicator lamp in button 2 goes out.
immediately once your vehicle exceeds
a speed of approximately
6mph(10km/h)
immediately when you press button 1
for driver’s side exterior rear view
mirror
iWith the automatic transmission in re-
verse gear R, the previously selected
rear view mirror is activated. The indi-
cator lamp in the respective button
comes on.
iWith the automatic transmission in re-
verse gear R, you can deactivate the
exterior rear mirror parking position by
pressing button 1 or activate it by
pressing button 2. The indicator lamp
of the selected button is on.
264 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.
Airmatic* adjusts the vehicle suspen-
sion characteristics automatically and
controls the vehicle level.
Parktronic*, which serves as a parking
assistant.
For information on the BAS, ABS, EBP,
4-ETS and ESP
® driving systems, see “Driv-
ing safety systems” (
page 97).
Cruise control
The cruise control automatically maintains
the speed you set for your vehicle.
The use of cruise control is recommended
for driving at a constant speed for extend-
ed 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).
Warning!
G
The cruise control is a convenience system
designed to assist the driver during vehicle
operation. The driver is and must always
remain responsible for the vehicle’s speed
and for safe brake operation.
Only use the cruise control if the road, traffic
and weather conditions make it advisable 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.
266 Controls in detailDriving systemsCanceling cruise control
There are several ways to cancel the cruise
control:
Step on the brake pedal.
The cruise control is canceled. The last
speed set is stored for later use.
or
Briefly push the cruise control lever in
direction of arrow3 (
page 265).
The cruise control is canceled. The last
speed set is stored for later use.
iThe last stored speed is canceled when
you turn off the engine.
iThe cruise control switches off auto-
matically when
you step on the brake pedal
you depress the parking brake
pedal
The cruise control also switches off au-
tomatically when
the vehicle speed is below 20 mph
(30 km/h)
the ESP
® is in operation or switched
off with the ESP
® switch
(
page 101)
you set the automatic transmission
toN while driving
An acoustic warning sounds and the
message
Cruise control off
appears
in the multifunction display.
!Setting the automatic transmission
toN while driving cancels the cruise
control. However, the automatic trans-
mission should not be set toN while
driving except to coast when the vehi-
cle is in danger of skidding (e.g. on icy
roads).iDepressing the accelerator pedal does
not deactivate the cruise control. After
brief acceleration (e.g. for passing), the
cruise control will resume the last
speed set.
274 Controls in detailDriving systemsParktronic* (Parking assist)
The Parktronic system is an electronic aid
designed to assist the driver during
parking maneuvers. It visually and audibly
indicates the relative distance between the
vehicle and an obstacle.
The Parktronic system is automatically
activated when you switch on the ignition,
release the parking brake, and set the
automatic transmission to positionD,R,
orN.
The Parktronic system deactivates at
vehicle speeds exceeding approximately
11 mph (18 km/h). At lower vehicle
speeds, the Parktronic system turns on
again.The Parktronic system also deactivates
when you set the automatic transmission
to positionP or depress the parking brake
pedal.
The Parktronic system monitors the sur-
roundings of your vehicle with six sensors
in the front bumper and four sensors in the
rear bumper.
1Sensors in the front bumperWarning!
G
Parktronic is a supplemental system. It is
not intended to, nor does it replace, the
need for extreme care. The responsibility
during parking and other critical maneuvers
always rests with the driver.
Special attention must be paid to objects
with smooth surfaces or low silhouettes
(e.g. trailer couplings, painted posts, or road
curbs). Such objects may not be detected by
the system and can damage the vehicle.
The operational function of the Parktronic
system can be affected by dirty sensors,
especially at times of snow and ice. See
“Cleaning the Parktronic system sensors”
(page 399).
Interference caused by other ultrasonic
signals (e.g. working jackhammers, car
wash, or the air brakes of trucks) can cause
the system to send erratic indications, and
should be taken into consideration.
Warning!
G
Make sure no persons or animals are in the
area in which you are maneuvering. Other-
wise you run the risk of causing injury.
275 Controls in detail
Driving systems
Range of the sensors
To function properly, the sensors must be
free of dirt, ice, snow and slush. Clean the
sensors regularly, being careful not to
scratch or damaging the sensors, see
“Cleaning the Parktronic* system sensors”
(page 399).
Front sensors
Rear sensors
Center
approx. 40 in (100 cm)
Corners
approx. 24 in (60 cm)
Center
approx. 48 in (120 cm)
Corners
approx. 32 in (80 cm)
!During parking maneuvers, pay special
attention to objects located above or
below the height of the sensors
(e.g. planters or trailer hitches).
The Parktronic system will not detect
such objects at close range and dam-
age to your vehicle or the object may
result.
Ultrasonic signals from outside
sources (e.g. working jackhammers,
car wash or the air brakes of trucks)
may impair the operation of the
Parktronic system.
277 Controls in detail
Driving systems
As your vehicle approaches an object, one
or more distance segments will illuminate,
depending on the distance. When the
seventh distance segment illuminates, you
have reached the minimum distance.
Front area: An intermittent acoustic
warning will sound as the first red
distance segment illuminates and a
constant acoustic warning lasting a
maximum of 2 seconds will sound for
the second red distance segment. The
signal is canceled when the automatic
transmission is set to positionP or the
parking brake is set.
Rear area: An intermittent acoustic
warning will sound as the first red
distance segment illuminates and a
constant acoustic warning lasting a
maximum of 2 seconds will sound for
the second red distance segment. The
signal is canceled when the automatic
transmission is set to positionD, P, or
the parking brake is set.Switching the Parktronic system
on/off
You can switch off the Parktronic system
manually.
The Parktronic switch is located in the
upper part of the center console.
1Parktronic switch
2Indicator lampSwitching off the Parktronic system
Press Parktronic switch1.
Indicator lamp2 comes on.
Switching on the Parktronic system
Press Parktronic switch1 once more.
Indicator lamp2 goes out.iThe Parktronic system switches on
automatically when you switch on the
ignition (
page 38).