2007 MERCEDES-BENZ CLS63AMG warning

221 Controls in detail
Driving systems
Distronic displays in the speedometer
dial
1Set speed
If Distronic is activated, one or two seg-
ments come on around the set speed.1Segments
If Distronic detects a vehicle directly
ahead, the segments (representing the
difference) from the speed of the vehicle
ahead to the set speed come on.
If Distronic calculates that there is a dan-
ger of collision:


The distance warning lampl in the
instrument cluster comes on red.


An intermittent warning sounds.
Distronic is designed and intended only to
maintain a set speed and keep a set dis-
tance from moving objects in front of it.Warning!
G
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.
i
The vehicle speed displayed on the speed-
ometer can briefly vary from the speed setting
on the Distronic system.

222 Controls in detailDriving systems
Immediately brake the vehicle to avoid
a collision.
Under no circumstances should the
driver await the intermittent warning
sound before braking. See the follow-
ing warning note.
The intermittent warning sound ceases
and the red distance warning
lampl goes out when the neces-
sary distance to the vehicle ahead is
again established.
Warning!
G
An intermittent warning sounds and the
distance warning lampl in the instru-
ment cluster is illuminated if the Distronic
system calculates that the distance to the
vehicle ahead and your vehicle’s current
speed indicate that Distronic will not be ca-
pable of slowing the vehicle sufficiently to
maintain the preset following distance,
which creates a danger of a collision.
Immediately brake the vehicle to increase
the distance to the vehicle in front of you.
The warning sound is intended as a final cau-
tion that you have not interceded with your
own braking inputs to avoid a potentially
dangerous situation. Do not wait for the op-
eration of the warning signal to intercede
with your own braking, as that will result in
potentially dangerous emergency braking
which will not always result in an impact
being avoided.
Tailgating increases the risk of an accident.
Warning!
G
Distronic brakes your vehicle with a maxi-
mum deceleration of 6.5 ft/s
2 (2 m/s
2).
This corresponds to about 20% of the maxi-
mum deceleration ability of your vehicle.
Distronic brakes the vehicle in an effort to
restore the preset distance or to maintain
the speed.

223 Controls in detail
Driving systems
Distronic menu in the control system
In the Distronic menu you can read the cur-
rent settings for Distronic. What appears in
the multifunction display depends on
whether Distronic and the distance warn-
ing function are turned on or off.
Press buttonè orÿ repeatedly
until one of the following displays ap-
pears.Distronic deactivated
When Distronic is deactivated you will see
the standard display in the multifunction
display.
1Vehicle ahead, if detected
2Actual distance to vehicle ahead
3Preset distance threshold to vehicle
ahead
4Your vehicle
5Symbol for activated distance warning
functionDistronic activated
If you turn Distronic on, you will see the set
speed in the multifunction display for
about 5 seconds. When Distronic is
activated, you will see the following display
in the multifunction display.
1Distronic activated

226 Controls in detailDriving systemsSetting stored speed
(“Resume” function)
Briefly tip the cruise control lever in the
direction of arrow4 (
page 224).
Distronic is activated and set to the last
stored speed.

Remove your foot from the accelerator
pedal.Deactivating Distronic
There are several ways to deactivate the
Distronic system:

Briefly tip the cruise control lever in the
direction of arrow3 (
page 224).
or

Step on the brake pedal.
Distronic will be deactivated. The last
speed set will be stored in memory.Distronic deactivates automatically when:


you set the parking brake


you drive slower than 20 mph
(30 km/h)


the ESP
® is active (
page 94) or you
deactivate the ESP
®


you move the gear selector lever into
positionN
A signal will sound. The
DISTRONIC Off
message appears in the multifunction
display for approximately 5 seconds.
Warning!
G
The speed stored in memory should only be
set again if prevailing road conditions per-
mit. Possible acceleration or deceleration
differences arising from returning to the pre-
set speed could cause an accident and/or
serious injury to you and others.
i
The following message will appear in the
multifunction display for approximately
5seconds:
DISTRONIC Off
.
The last stored speed is deleted when you turn
off the engine.
Warning!
G
Distronic switches off and releases the
brakes when the vehicle decelerates below
the minimum speed of approximately
20 mph (30 km/h) by operation of the
system. At that time the driver must apply
the brakes in order to reduce vehicle speed
further or bring it to a stop.

227 Controls in detail
Driving systems
Setting the following distance in
Distronic
You can set the specified following dis-
tance for Distronic by varying the time set-
ting between 1.0 and 2.0 seconds. Using
this time setting and the current speed of
your vehicle, Distronic calculates and sets
the required following distance to the vehi-
cle ahead. The set distance will be shown
in the multifunction display field.
The thumbwheel for making the time set-
ting is located on the lower section of the
center console.1Distance warning function on/off
switch
2Indicator lamp
3Thumbwheel for setting distance
Increasing distance
Increasing the distance setting tells
Distronic to maintain a greater following
distance to the vehicle ahead.

Turn thumbwheel3 towards¯.Decreasing distance
Decreasing the distance setting tells
Distronic to maintain a shorter 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.
Warning!
G
It is up to the driver to exercise discretion to
select the appropriate setting given road
conditions, traffic, driver’s preferred driving
style and applicable laws and driving recom-
mendations for safe following distance.

228 Controls in detailDriving systemsWhen 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 also go out.Activating

Press switch1.
The indicator lamp2 on the switch
comes on. A loudspeaker symbol
appears in the multifunction display
(page 223).
Deactivating

Press switch1.
The indicator lamp2 on the switch
goes out. No loudspeaker symbol
appears in the multifunction display.Driving with Distronic
This section describes a number of driving
situations where special precaution is
required on the part of the driver. Be pre-
pared to brake in such situations. This will
deactivate the Distronic system.
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
relying on the distance warning function, as
this will result in an emergency braking
application. Especially depending on road
surface conditions and driver reaction, this
will not always enable you to avoid a colli-
sion.
i
Complex driving situations are not always
fully recognized by Distronic. This could result in
wrong or missing distance warnings.
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.

229 Controls in detail
Driving 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,
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 336).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,
observe 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.
i
If 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 dissolved; Distronic works
again.

232 Controls in detailDriving systemsVehicle 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.
Select the raised level only when required
by current driving conditions. Otherwise


handling may be impaired


fuel consumption may increase
i
These 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.