2004 MERCEDES-BENZ CL600 Owner's Manual

208 Controls in detailDriving systems
The most likely cause for a malfunctioning
system is a dirty sensor (located behind
the hood grille), especially at times of snow
and ice or heavy rain. In such a case, Dis-
tronic will switch off, and the message CURRENTLY UNAVAILABLE SEE OPER.
MANUAL
appears in the multifunction dis-
play.
For cleaning and care of the Distronic sen-
sor, see “Cleaning the Distronic* system
sensor cover” (
page 287).Turns and bends
In turns or bends, Distronic may not detect
a moving vehicle in front, or it may detect
one too soon. This may cause your vehicle
to brake late or unexpectedly.
Distronic regulates only the distance be-
tween your vehicle and those directly ahead
of it, but does not register stationary objects
in the road, e.g.:

a stopped vehicle in a traffic jam


a disabled vehicle


an oncoming vehicle
The driver must always be on the alert, ob-
serve all traffic and intercede as required by
steering or braking the vehicle.
Warning!
G
Distronic should not be used in snowy or icy
road conditions.
iIf the message
CURRENTLY UNAVAILABLE
SEE OPER. MANUAL
disappears during
driving and the last speed stored flash-
es for approximately five seconds, the
dirt (e.g. slush) has dissolved; Distronic
is again operational.


209 Controls in detail
Driving systems
Offset driving
A vehicle traveling in your lane but offset
from your direct line of travel may not be
detected by Distronic. There will be insuffi-
cient distance to the vehicle ahead.Lane changing
Distronic has not yet detected the vehicle
changing lanes. There will be insufficient
distance to the lane changing vehicle.Narrow vehicles
Because of their narrow profiles, the vehi-
cles traveling near the outer edges of the
lane have not yet been detected by Dis-
tronic. There will be insufficient distance to
the vehicles ahead.

210 Controls in detailDriving systemsActive Body Control (ABC)
The ABC system automatically selects the
optimum suspension tuning and ride
height for your vehicle.
Suspension tuning
The suspension tuning is set according to:

your driving style


road surface conditions


the vehicle loading


your choice of suspension style,
“sporty” or “regular”, which you select
using the ABC switch
The selected suspension style is stored
in memory, even after the SmartKey is
removed from the starter switch.The ABC switch with the indicator lamps is
located in the upper part of the center con-
sole.
1ABC switch
2Indicator lamp

Start the engine.Suspension for sporty driving
The setting for sporty driving is selected
when indicator lamp2 is illuminated.

Press switch1.
Indicator lamp2 comes on.
Suspension for regular driving
The setting for regular driving is selected
when indicator lamp2 is off.

Press switch1.
Indicator lamp2 goes out.

211 Controls in detail
Driving systems
Vehicle level control
Your vehicle automatically adjusts its ride
height to

reduce fuel consumption


increase vehicle safety
The vehicle chassis ride height is raised or
lowered according to the selected level
setting and to the vehicle speed:


With increasing speed, ride height is re-
duced by up to approximately 0.95 in
(24 mm).


With decreasing speed, the ride height
is again raised to the selected vehicle
level.Select the level 1 and 2 settings only when
required by current driving conditions.
Otherwise


Fuel consumption may increase


Handling may be impairediThese height adjustments are so small
that you may not notice any change.Warning!
G
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.

212 Controls in detailDriving systemsThe following vehicle level settings can be
selected when the vehicle is stationary:
The switch with the indicator lamps is lo-
cated in the upper part of the center con-
sole.
1Indicator lamps
2Vehicle level control switch

Briefly press switch2 to change from
one level setting to the next. When ve-
hicle is at raised level 2, pressing the
switch will return the vehicle to normal
level.
The message:ACTIVE BODY CONTROL
VEHICLE RISING!appears in the multifunction display.
The display switches off when the vehi-
cle is raised.
Vehicle level when
stationary
Use for
Ride height increase
over normal
Automatic lowering
Indicator lamps
Normal level
Normal operation
None
Max. approx. 0.4 in (11 mm)
Both lamps off
Raised level 1
Driving with snow
chains (
page 281)
Max. 0.55 in (14 mm)
1
Max. approx. 0.55 in (14 mm)
One lamp on
Raised level 2
Very rough road surface
conditions
Max. 0.95 in (24 mm)
1
Max. approx. 0.95 in (24 mm)
Both lamps on
1Dependent on load

213 Controls in detail
Driving systems
Normal level (see table)
Speed dependent lowering of vehicle chas-
sis (approximate values):

between 0 mph (0 km/h) and 40 mph
(65 km/h) – none


between 40 mph (65 km/h) and
87 mph (140 km/h) – lowered pro-
gressively by approximately 0.4 in
(11 mm).Raised level 1 (see table)
Speed dependent lowering of vehicle chas-
sis (approximate values)


between 0 mph (0 km/h) and 38 mph
(60 km/h) - raised by approximately
0.55 in (14 mm)


between 38 mph (60 km/h) and
100 mph (160 km/h) - lowered pro-
gressively by approximately 0.55 in
(14 mm)Raised level 2 (see table)
Speed dependent lowering of vehicle chas-
sis (approximate values):


between 0 mph (0 km/h) and 18 mph
(30 km/h) - raised by approximately
0.95 in (24 mm)


between 18 mph (30 km/h) and
38 mph (60 km/h) - lowered progres-
sively by approx. 0.4 in (10 mm)


between 38 mph (60 km/h) and
100 mph (160 km/h) – lowered pro-
gressively by additional approximately
0.55 in (14 mm).
iPressing the switch twice in quick suc-
cession will cause the vehicle to imme-
diately raise or lower according to the
starting level.
The selected vehicle level setting re-
mains stored in memory even if the en-
gine is turned off and restarted.

214 Controls in detailDriving systemsParktronic 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 Park-
tronic 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
rear bumper.
1Sensors in the front bumperWarning!
G
The 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, es-
pecially at times of snow and ice, see
“Cleaning the Parktronic system sensors”
(page 287).
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.
Warning!
G
Make sure that no persons or animals are in
the area in which you are maneuvering. You
could otherwise injure them.

215 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 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.
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 Park-
tronic system will not detect such ob-
jects 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
Parktronic system.
Center
approx. 8 in (20 cm)
Corners
approx. 6 in (15 cm)