2006 MERCEDES-BENZ E320CDI Owner's Manual

256 Controls in detailDriving systemsDecreasing distance
Decreasing the distance setting tells
Distronic to maintain a smaller following
distance to the vehicle ahead.
Turn thumbwheel3 towards®.
Distance warning function
When Distronic is deactivated, this func-
tion will continue to warn you when recog-
nizing a stationary obstacle or a slower
vehicle moving in the vehicle’s path and
the danger of a collision exists:


The distance warning lampl in the
instrument cluster comes on.


An intermittent warning will sound if
necessary.
If these warnings are issued, you must
brake manually to maintain a safe distance
and avoid a collision with the vehicle
ahead.
When pressing the brake pedal, the warn-
ing sound ceases. The warning sound will
also cease when the distance to the vehi-cle ahead is sufficient again without apply-
ing the brakes. In this case, the distance
warning lamp will also go out.Activating

Press switch1.
Indicator lamp 2 on the switch comes
on. A loudspeaker symbol appears in
the multifunction display (
page 252).
Deactivating

Press switch1.
Indicator lamp 2 on the switch goes
out. No loudspeaker symbol appears in
the multifunction display.
Warning!
G
If the distance warning lampl in the in-
strument cluster comes on while driving
and/or an intermittent warning sounds, im-
mediate attention on the part of the driver is
required. As required by the traffic situation,
apply the brakes and navigate around a pos-
sible obstacle. However, do not drive by re-
lying on the distance warning function, as
this will result in an emergency braking ap-
plication. Especially depending on road sur-
face conditions and driver reaction, this will
not always enable you to avoid a collision.iComplex driving situations are not al-
ways fully recognized by Distronic. This
could result in wrong or missing dis-
tance warnings.

257 Controls in detail
Driving systems
Driving with Distronic
This section describes a number of driving
situations where special precaution is re-
quired on the part of the driver. Be pre-
pared to brake in such situations. This will
deactivate the Distronic system.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,
Distronic will switch off, and the message
Distronic
Currently unavailable
See Operator’s Manualappears in the multifunction display.
For cleaning and care of the Distronic sen-
sor, see “Cleaning the Distronic* system
sensor cover” (
page 368).
Warning!
G
Distronic works to maintain the speed se-
lected by the driver unless a moving obsta-
cle proceeding directly ahead of it in the
same travel direction is detected (e.g. fol-
lowing another vehicle ahead of you at a dis-
tance set by Distronic). This means that:

Your vehicle can pass another vehicle
after you change lanes.


While in a sharp turn or if the vehicle in
front is in a sharp turn, Distronic could
lose sight of a vehicle traveling in front
of it, then your vehicle could accelerate
to the previously selected speed.
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 Distronic
Currently unavailable
See Operator’s Manualdisappears during driving and the last
speed stored flashes for approximately
5 seconds, the dirt (e.g. slush) has dis-
solved; Distronic works again.

258 Controls in detailDriving systemsTurns 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.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.

259 Controls in detail
Driving systems
Narrow vehicles
Because of their narrow profile, 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.
Airmatic DC (Dual Control)*
Airmatic automatically selects the opti-
mum suspension tuning and ride height for
your vehicle. The Airmatic consists of two
components:

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 Sport 1, Sport 2 or
Comfort.Suspension tuning
The suspension tuning is set according to:


Your driving style


Road surface conditions


Your choice of suspension style,
Sport 1, Sport 2 or Comfort, which you
select using the damping button1
(page 260).
The following suspension styles are
available:


Comfort
Both indicator lamps2
(page 260) are off.


Sport 1
One indicator lamp2
(page 260) is on.


Sport 2
Both indicator lamps2
(page 260) are on.

260 Controls in detailDriving systems1Damping button
2Indicator lamps
Start the engine.

Press the damping button1 until the
desired suspension style is set.Vehicle level control
Your vehicle automatically adjusts its ride
height to


increase vehicle safety


reduce fuel consumption
The following vehicle chassis ride heights
can be selected:


Normal


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


At a speed exceeding approximately
68 mph (110 km/h) with normal level
set or exceeding 75 mph (120 km/h)
with raised level set, the ride height is
reduced automatically. The table on
the next page provides an overview of
the vehicle levels.


With decreasing speed, the ride height
is again raised to the normal level.
!If you have selected the Comfort sus-
pension tuning, the vehicle lowers
slightly when you lock it within approx-
imately 60 seconds after switching off
the engine. When parking, make sure
that your vehicle cannot come into con-
tact with other objects, such as a curb,
while lowering. Your vehicle could oth-
erwise be damaged.iThe selected suspension style is stored
in memory, even after the SmartKey is
removed from the starter switch.

261 Controls in detail
Driving systems
Select the raised level only when required
by current driving conditions. Otherwise

handling may be impaired


fuel consumption may increaseiThese 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.

262 Controls in detailDriving systemsThe following vehicle level settings can be
selected when the vehicle is stationary and
the engine is running:Vehicle level
when stationary
Indicator lamp
Suspension
tuning
Use for
Ride height increase
over normal
Automatic lowering
Normal
Lamp off
Comfort
For driving on normal
roads
None
Max. approx. 0.4 in (10 mm)
Normal
Lamp off
Sport 1 or 2
For driving on normal
roads
None
Max. approx. 0.6 in (15 mm)
Raised
Lamp on
Comfort
For driving on rough
roads or with snow
chains
Approx. 0.8 in (20 mm)
Max. approx. 1.2 in (30 mm)
Raised
Lamp on
Sport 1 or 2
For driving on rough
roads or with snow
chains
Approx. 0.8 in (20 mm)
Max. approx. 1.4 in (35 mm)

263 Controls in detail
Driving systems
The button is located in the lower section
of the center console.
1Vehicle level control button
2Indicator lamp 
Start the engine (
page 36).

Briefly press button1 to change from
normal level to raised level. When vehi-
cle is at raised level, pressing the but-
ton will return the vehicle to normal
level.
When raised level is set, indicator
lamp2 in the button comes on.
When normal level is set, indicator
lamp2 in the button goes out.
Parktronic system (Parking assist)*
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 indicator
lamp 2 in the button goes out.
If you do not drive in this speed range,
the raised level remains stored even if
the SmartKey is removed from the
starter switch.
Warning!
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, es-
pecially at times of snow and ice, see
“Cleaning the Parktronic system* sensors”
(page 368).
Interference caused by other ultrasonic sig-
nals (e.g. working jackhammers, car wash or
the air brakes of trucks) can cause the sys-
tem to send erratic indications, and should
be taken into consideration.