2008 MERCEDES-BENZ S-Class Comand Manual

456 Controls in detailDriving systems
Press ( or & to select the
“Assistance” menu.

Press % or $ to select the
“Distance Display” function.

Press #.
The DISTRONIC Plus distance graphic
appears and you will see one of the fol-
lowing displays on the multifunction
display.DISTRONIC Plus activated
When you turn DISTRONIC Plus on, you will
see the set speed in the multifunction dis-
play for about 5 seconds. You then see the
following display in the multifunction dis-
play.
1DISTRONIC Plus activated
2Your vehicle
3Preset distance threshold to vehicle
ahead
4Vehicle ahead, if detectedDISTRONIC Plus deactivated
If DISTRONIC Plus is deactivated, the stan-
dard display of DISTRONIC Plus appears in
the multifunction display.
1Vehicle ahead, if detected
2Actual distance to vehicle ahead
3Preset distance threshold to vehicle
ahead
4Your vehicle
i
The menu overview can be found on
(
page 289).


457 Controls in detail
Driving systems
DISTRONIC Plus lever
The DISTRONIC Plus system is operated by
means of the DISTRONIC Plus lever.
1Setting current or higher speed
Adjustment in 1 mph increments (to
the resistance point) or 5 mph
increments (past the resistance point)
(Canada: 1 km/h or 10 km/h)
2Setting current or lower speed
Adjustment in 1 mph increments (to
the resistance point) or 5 mph
increments (past the resistance point)
(Canada: 1 km/h or 10 km/h)
3Canceling DISTRONIC Plus
4Activating DISTRONIC Plus or resum-
ing to last set speed5Setting target distance
Activating DISTRONIC Plus
You can activate DISTRONIC Plus when:


you are driving slower than 20 mph
(30 km/h) and DISTRONIC Plus has
detected a vehicle ahead of you


you are driving above 20 mph
(30 km/h)
If DISTRONIC Plus has not been activated
after pressing the DISTRONIC Plus lever,
you will see the message: “DISTRONIC
PLUS - - - mph” (Canada: “DISTRONIC PLUS
- - - kmh”) in the multifunction display.
Warning!
G
When DISTRONIC Plus is braking, the brake
pedal is retracted (i.e. depressed automati-
cally). The pedals’ range of motion must not
be impeded by any obstacles:

Do not place any objects in the footwell.


Make sure that the floor mats and car-
pets are securely in place.


Do not rest your foot underneath the
brake pedal, as it could otherwise be
trapped.
You could otherwise cause an accident and
injure yourself and others.
Warning!
G
When DISTRONIC Plus is switched on, the
vehicle can be braked. You should therefore
switch off DISTRONIC Plus if the vehicle
must be towed.i
The maximum speed you can set is 120 mph
(Canada: 200 km/h).

458 Controls in detailDriving systemsIn the following cases you cannot activate
DISTRONIC Plus:

up to 2 minutes after starting the en-
gine


if the engine is switched off


if you step on the brake pedal while
driving


the vehicle is secured with the elec-
tronic parking brake


if the gear selector lever is in park
positionP, reverse gearR, or neutral
positionN


if ESP
® is switched off


if the hood is open


if the driver’s door is open and the driv-
er has not fastened his or her seat belt


if the radar sensors are switched off
(page 307).Switching on while driving

Tap DISTRONIC Plus lever up1 or
down2 until desired speed is set.
DISTRONIC Plus is switched on.
or

Pull DISTRONIC Plus lever briefly in di-
rection of arrow4 to call up speed
last set (
page 463).
DISTRONIC Plus is switched on.

Take your foot off the accelerator ped-
al.
Your vehicle adapts its speed to the ve-
hicle ahead, observing the set speed as
a maximum value.
i
Under 20 mph (30 km/h), you can only
switch on DISTRONIC Plus if the vehicle ahead of
you has been detected and is shown on the mul-
tifunction display. If you no longer see the vehi-
cle in front of you on the multifunction display
and if it is no longer detected because it has
changed lanes, for example, DISTRONIC Plus
switches off and you will hear a signal.
i
If you do not completely lift your foot off the
accelerator pedal, the message“DISTRONIC
PLUS Override” appears on the multifunction
display. The distance to a slower-driving vehicle
will not be set. You will drive at the speed you
dictate by pressing the accelerator pedal.

459 Controls in detail
Driving systems
Switching on when approaching a sta-
tionary vehicle
If the vehicle in front of you is stationary,
you can only switch on DISTRONIC Plus if
your vehicle is also at a standstill.
Tap DISTRONIC Plus lever up1 or
down2 until desired speed is set.
DISTRONIC Plus is switched on.
or

Pull DISTRONIC Plus lever briefly in di-
rection of arrow4 to call up speed
last set (
page 463).
DISTRONIC Plus is switched on.Starting off
When the vehicle in front of you starts off:

Remove your foot from the brake
pedal.

Pull DISTRONIC Plus lever briefly in di-
rection of arrow4.
or

Briefly step on the accelerator pedal.
Your vehicle starts off and adapts its speed
to the vehicle in front of you.Driving
If no vehicle is driving ahead of you,
DISTRONIC Plus functions like the cruise
control (
page 446).
When DISTRONIC Plus detects that the ve-
hicle in front of you is driving more slowly,
it brakes the vehicle in order to keep the
distance specified by you.
When DISTRONIC Plus detects that the ve-
hicle in front of you is driving faster, the ve-
hicle accelerates up to the set speed.
i
It is helpful to switch on the DISTRONIC Plus
display in the instrument cluster (
page 455)
since you can only switch on DISTRONIC Plus un-
d e r a s p e e d o f 2 0 m p h ( 3 0 k m / h ) w h e n a v e h i c l e
has been detected in front of you.
i
You can adjust the set speed using the
DISTRONIC Plus lever and the target distance
using the distance setting switch on the
DISTRONIC Plus lever (
page 464).
i
If DISTRONIC Plus is switched off,
PRE-SAFE
® Brake* (
page 77) will warn of an
impending collision if this function has been ac-
tivated with the instrument cluster control sys-
tem (
page 303).
Warning!
G
When you step on the brake pedal, you
switch off DISTRONIC Plus except when the
vehicle is at a standstill. DISTRONIC Plus will
no longer brake your vehicle. You are always
responsible for maintaining a distance from
other vehicles, observing road speeds and
braking well in advance.

460 Controls in detailDriving systemsStopping
When DISTRONIC Plus detects that the ve-
hicle in front of you is stopping, the vehicle
brakes until it also stops.
Once DISTRONIC Plus has stopped your
vehicle and it is at a standstill, it remains
stationary; the brake pedal does not need
to be depressed.Setting the current speed

Accelerate or decelerate to the desired
speed.

Briefly lift the DISTRONIC Plus lever in
the direction of arrow1 or depress in
the direction of arrow2.
DISTRONIC Plus is activated and the
current speed is set.

Remove your foot from the accelerator
pedal.
Warning!
G
DISTRONIC Plus’s braking effect is canceled
and the vehicle can start to roll if

DISTRONIC Plus is switched off using
the DISTRONIC Plus lever


you accelerate


the system or the power supply is mal-
functioning, e.g. due to battery failure


the electrical components in the engine
compartment or the fuses have been
manipulated


the battery is disconnected
Warning!
G
Never get out of the vehicle while
DISTRONIC Plus is switched on!
DISTRONIC Plus must never be operated or
switched off by passengers or from outside
the vehicle.
DISTRONIC Plus is not a substitute for the
electronic parking brake and may not be
used for parking.
When you get out of the vehicle or switch off
the engine, deactivate DISTRONIC Plus and
secure the vehicle from rolling away by en-
gaging the electronic parking brake.
i
After a short while, your vehicle is secured in
place by the electronic parking brake so that the
operating brake can be relieved of load.
i
Depending on the following distance set us-
ing the distance setting switch on the
DISTRONIC Plus lever, your vehicle will stop ap-
proximately 13.1 ft away from the vehicle in
front of you.

461 Controls in detail
Driving systems
Setting a higher speed
You can increase the set speed in two
stages.Adjustment in 1 mph (Canada: 1 km/h)
increments

Briefly lift the DISTRONIC Plus lever to
the resistance point in direction of
arrow1 (
page 457).

Release the DISTRONIC Plus lever.
The vehicle speed increases in incre-
ments of 1 mph (Canada: 1 km/h).Adjustment in 5 mph
(Canada: 10 km/h) increments

Briefly lift the DISTRONIC Plus lever
past the resistance point in direction of
arrow1 (
page 457).

Release the DISTRONIC Plus lever.
i
If you do not take your foot off of the accel-
erator completely, the following message
“DISTRONIC PLUS Override” will appear in the
multifunction display.
The distance to a slower moving vehicle in front
of you will not be set. Your vehicle speed will
then be determined only by the accelerator ped-
al position.Warning!
G
If you increase the set speed, keep in mind
that it may take a brief moment until the ve-
hicle has reached the set speed.
Increase the set speed to a value that the
prevailing road conditions and legal speed
limits permit. Otherwise, sudden and unex-
pected acceleration of the vehicle could
cause an accident and/or serious injury to
you and others.
i
The set speed value is increased in 1 mph
(Canada: 1 km/h) increments each time you lift
the DISTRONIC Plus lever to the resistance
point.
Warning!
G
You can increase the vehicle speed in 5 mph
(Canada: 10 km/h) increments. When using
this feature, keep in mind that it may take a
brief moment until the vehicle has reached
the set speed.
Increase the vehicle speed to a value that
the prevailing road conditions permit. Other-
wise, sudden and unexpected acceleration
of the vehicle could cause an accident
and/or serious injury to you and others.i
The set value is increased in 5 mph
(Canada: 10 km/h) increments each time you
lift the DISTRONIC Plus lever past the resistance
point.


462 Controls in detailDriving systems
The vehicle speed increases in incre-
ments of 5 mph (Canada: 10 km/h).
Setting a lower speed
You can reduce the speed in two stages.Adjustment in 1 mph (Canada: 1 km/h)
increments

Briefly press the DISTRONIC Plus lever
down to the resistance point in direc-
tion of arrow2 (
page 457).

Release the DISTRONIC Plus lever.
The vehicle speed decreases in incre-
ments of 1 mph (Canada: 1 km/h).Adjustment in 5 mph
(Canada: 10 km/h) increments
i
The new speed is set and the vehicle will ac-
celerate. Keep in mind that it may take a brief
moment until the vehicle has reached the set
speed.Warning!
G
If you decrease the set speed, keep in mind
that it may take a brief moment until the ve-
hicle has reached the set speed.
Decelerate the set speed to a value that the
prevailing road conditions and legal speed
limits permit. Otherwise, sudden and unex-
pected deceleration of the vehicle could
cause an accident and/or serious injury to
you and others.
i
When you use the DISTRONIC Plus lever to
decelerate, the brake system will automatically
brake the vehicle if the engine’s braking power
does not brake the vehicle sufficiently.
i
The set value is decreased in 1 mph
(Canada: 1 km/h) increments each time you
press the DISTRONIC Plus lever down to the re-
sistance point.
Warning!
G
You can decrease the vehicle speed in
5 mph (Canada: 10 km/h) increments.
When using this feature, keep in mind that it
may take a brief moment until the vehicle
has reached the set speed.
Decelerate the vehicle speed to a value that
the prevailing road conditions. Otherwise,
sudden and unexpected deceleration of the
vehicle could cause an accident and/or se-
rious injury to you and others.


463 Controls in detail
Driving systems

Briefly press the DISTRONIC Plus lever
down past the resistance point in
direction of arrow2 (
page 457).

Release the DISTRONIC Plus lever.
The vehicle speed decreases in incre-
ments of 5 mph (Canada: 10 km/h).Setting to last stored speed (“Resume”
function)

Briefly pull the DISTRONIC Plus lever in
the direction of arrow4 (
page 457).
DISTRONIC Plus is set to the last
stored speed.
DISTRONIC Plus resumes the last set
speed or if no speed is stored, it will set
and store the current speed.

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

Briefly tip the DISTRONIC Plus lever in
the direction of arrow3 (
page 457).
or

Step on the brake pedal.
DISTRONIC Plus will be deactivated.
The last speed set will be stored into
memory.
DISTRONIC Plus deactivates automatically
when:


the vehicle is secured with the elec-
tronic parking brake


the vehicle speed is below 20 mph
(30 km/h) and no preceding vehicle is
detected


the ESP
® is in operation or switched off
with the ESP
® switch (
page 74)
i
The set value is decreased in 5 mph
(Canada: 10 km/h) increments each time you
press the DISTRONIC Plus lever down past the
resistance point.
i
The new speed is set and the vehicle will de-
celerate. Keep in mind that it may take a brief
moment until the vehicle has reached the set
speed.
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 preset
speed could cause an accident and/or seri-
ous injury you and others.i
Upon switching off the engine, the last
stored speed is deleted.
i
The last stored speed is deleted when you
turn off the engine.