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230 Controls in detailDriving systemsAirmatic DC (Dual Control)*
Airmatic automatically selects the opti-
mum suspension tuning and ride height for
your vehicle. The Airmatic consists of two
Adaptive Damping System (ADS)
Vehicle level control
The ADS automatically selects the opti-
mum damping for the respective driving
conditions. At the same time the suspen-
sion is set to either sporty or comfort.
The suspension tuning is set according to:
Your driving style
Road surface conditions
Your choice of suspension style,
“sporty I”, “sporty II” or “comfortable”,
which you select using the damping
button.The following suspension styles are
Both indicator lamps2 are off.
One indicator lamp2 is on.
Both indicator lamps2 are on.
Start the engine.
Press the damping button1 until the
desired suspension style is set.iThe selected suspension style is stored
in memory, even after the SmartKey is
removed from the starter switch.iIn the sporty suspension style the vehi-
cle is lowered up to 0.6 in (15 mm).
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231 Controls in detail
Vehicle level control
Your vehicle automatically adjusts its ride
reduce fuel consumption
increase vehicle safety
The following vehicle chassis ride heights
can be selected:
RaisedThe vehicle chassis ride height is raised or
lowered according to the selected level
setting and to the vehicle speed:
At a speed above approximately above
68 mph (110 km / h) and the sporty
suspension style selected
(page 230), ride height is reduced
automatically by up to approximately
0.6 in (15 mm).
With decreasing speed, the ride height
is again raised to the “Normal” level.Select the “Raised” level only when re-
quired by current driving conditions. Oth-
fuel consumption may increase
handling may be impaired
iThese height adjustments are so small
that you may not notice any change.
To help avoid personal injury, keep hands
and feet away from wheel housing area, and
stay away from under the vehicle when low-
ering the vehicle chassis.
Page 233 from 451
232 Controls in detailDriving systemsThe following vehicle level settings can be
selected when the vehicle is stationary and
the engine is running:
The button is located in the lower section
of the center console.
1Vehicle level control button
Briefly press button1 to change from
“Normal” level to “Raised” level. When
vehicle is at “Raised” level, pressing
the switch will return the vehicle to
Vehicle level when
Ride height increase
Indicator lamp (
Max. approx. 0.6 in (15 mm)
Driving with snow
chains or very
rough road sur-
Approx. 0.8 in (20 mm)
Max. approx. 1.4 in (35 mm)
iAt a speed of approximately above
75 mph (120 km / h) or if the speed
amounts to between 50 mph
(80 km / h) and 75 mph (120 km / h)
for approximately five minutes, the set-
ting “Raised” is canceled. The message Level selec. canceled
appears in the
If you do not drive in this speed range,
the “Raised” level remains stored even
if the SmartKey is removed from the
Page 234 from 451
233 Controls in detail
Parktronic system* (Parking assist)
The Parktronic system is an electronic aid
designed to assist the driver during park-
ing maneuvers. It visually and audibly indi-
cates the relative distance between the
vehicle and an obstacle.
The Parktronic system is automatically ac-
tivated when you switch on the ignition
and release the parking brake. The
Parktronic system deactivates at speeds
over 11 mph (18 km / h). At lower speeds
the Parktronic system turns on again.The Parktronic system monitors the sur-
roundings of your vehicle with six sensors
in the front bumper and four sensors in the
1Sensors in the front bumperWarning!
The Parktronic system is a supplemental
system. It is not intended to, nor does it re-
place, the need for extreme care. The re-
sponsibility 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, es-
pecially at times of snow and ice. See
“Cleaning the Parktronic system sensors”
Interference caused by other ultrasonic sig-
nals (e.g. working jackhammers or the air
brakes of trucks) can cause the system to
send erratic indications, and should be tak-
en into consideration.
Make sure that no persons or animals are in
the area in which you are maneuvering. You
could otherwise injure them.
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234 Controls in detailDriving systemsRange 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 damage the sensors.Front sensors
Rear sensorsMinimum distance
If the system detects an obstacle in this
range, all the warning lamps come on and
you hear a warning signal. If the obstacle is
closer than the minimum distance, the ac-
tual distance might no longer be indicated
by the system.
approx. 40 in (100 cm)
approx. 48 in (120 cm)
approx. 48 in (120 cm)
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 damage to
your vehicle or the object may result.
Ultrasonic signals from outside sourc-
es (e.g. truck air brakes or jackham-
mers) may impair the operation of the
approx. 8 in (20 cm)
approx. 6 in (15 cm)