cruise control MERCEDES-BENZ S550 2007 W221 Owner's Manual

Contents
Driving systems ................................. 380
Cruise control .............................. 380
DISTRONIC Plus* ......................... 385
Airmatic (S 550 only) ................... 401
Active Body Control (ABC)*.......... 403
Parktronic system* ...................... 405
Park Assist* ................................. 409
Dynamic Rear View Monitor* ....... 413
Night View Assist* ....................... 420
Automatic climate control ................. 424
Deactivating climate control
system ......................................... 428
Operating climate control system
in automatic mode ....................... 428
Setting temperature ..................... 429
Adjusting air volume .................... 429
Front defroster ............................. 429
Rear window defroster ................. 430
Maximum cooling MAXCOOL
(USA only) .................................... 430
Air recirculation mode .................. 431
Residual engine heat and
ventilation .................................... 433Front passenger compartment
adjustable air vents....................... 433
Rear passenger compartment
adjustable air vents....................... 434
Rear passenger compartment
climate control* ............................ 434
Trunk .................................................. 436
Opening trunk ............................... 436
Closing trunk ................................ 437
Trunk emergency release.............. 440
Power tilt/sliding sunroof................... 441
Opening and closing power
tilt/sliding sunroof ........................ 441
Synchronizing ............................... 442
Panorama roof with power
tilt/sliding panel* ............................... 443
Roller sunblinds ............................ 443
Opening and closing panorama
roof with power tilt/sliding panel.. 444
Synchronizing ............................... 446Loading and storing............................ 447
Roof rack* .................................... 447
Loading instructions ..................... 447
Storage compartments ................. 448
Cup holders .................................. 452
Trunk ............................................ 453
Useful features ................................... 455
Sun visors ..................................... 455
Vanity mirror in rear...................... 455
Rear window sunshade ................. 456
Ashtrays........................................ 456
Cigarette lighters .......................... 457
Power outlet ................................. 458
Telephone* ................................... 459
Tele Aid......................................... 462
Garage door opener ...................... 470
Infrared reflecting windshield ....... 475

27 At a glance
Cockpit
Item
Page
1
Combination switch

Turn signals


Windshield wipers


High beam


Cornering lamps
362
351
346
347
2
Lever for

Cruise control


DISTRONIC Plus*
380
385
3
Horn
4
Multifunction steering wheel
242
5
Instrument cluster
28
6
Steering wheel gearshift con-
trol
375
7
Gear selector lever for
automatic transmission
359
Item
Page
8
Control panel with

Front passenger front
air bag indicator lamp


Vehicle level control
switch


Electronic Stability Pro-
gram (ESP
®) switch


Parktronic*/Park Assist*
deactivation switch


Swivel COMAND display


COMAND/instrument
cluster illumination
53
401,
403
73
408,
408
81
378
9
COMAND display
79
a
Overhead control panel
37
b
Automatic climate control
Center console, upper part
424
32
Item
Page
c
Glove box lock
448
d
Cover of compartment with

CD changer


PCMCIA card slot
107
108
e
Center console, lower part
33
f
Starter switch
KEYLESS-GO* start/stop but-
ton
315
316
g
Steering wheel adjustment
Heated steering wheel*
330
331
h
Headlamp washer button
346
j
Parking brake
364
k
Hood lock release
492
l
Door control panel
39
m
Night View Assist*
420
n
Exterior lamp switch
342

380 Controls in detailDriving systemsThe driving systems of your vehicle are de-
scribed on the following pages:

Cruise control and DISTRONIC Plus*,
with which the vehicle can maintain a
preset speed.


Distance warning function* (only avail-
able with DISTRONIC Plus*), which
warns of a stationary obstacle or slow-
er moving vehicle that you are closing
on to quickly.


Airmatic (S 550 only) and ABC* adjust
the vehicle suspension characteristics
automatically and control the vehicle
level.


Parktronic* and Park Assist*, which
serve as a parking assistant.


Dynamic Rear View Monitor* is an
electronic and visual parking aid.


Night View Assist* illuminates the road
with infrared light in addition to the nor-
mal headlamps.For information on the ABS, Adaptive
Brake, BAS, BAS Plus*, EBP, and ESP
® driv-
ing systems, see “Driving safety systems”
(
page 69).
Cruise control
Cruise control automatically maintains the
speed you set for your vehicle.
The use of cruise control is recommended
for driving at a constant speed for extend-
ed periods of time. You can set or resume
cruise control at any speed over 20 mph
(30 km/h).
The cruise control function is operated by
means of the cruise control lever.
Warning!
G
Cruise control is a convenience system de-
signed to assist the driver during vehicle op-
eration. The driver is and must always
remain responsible for the vehicle’s speed
and for safe brake operation.
Only use the cruise control if the road, traffic
and weather conditions make it advisable to
travel at a steady speed.

The use of cruise control can be danger-
ous on winding roads or in heavy traffic
because conditions do not allow safe
driving at a steady speed.


The use of cruise control can be danger-
ous on slippery roads. Rapid changes in
tire traction can result in wheel spin and
loss of control.


Deactivate cruise control when driving
in fog.
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.

381 Controls in detail
Driving systems
1Setting current or higher speed
Adjustment in 1 mph increments (to re-
sistance point) or 5 mph increments
(past resistance point)
(Canada: 1 km/h or 10 km/h)
2Setting current or lower speed
Adjustment in 1 mph increments (to re-
sistance point) or 5 mph increments
(past resistance point)
(Canada: 1 km/h or 10 km/h)
3Cancel cruise control
4Resume to last set speedActivating cruise control
You can activate cruise control if the vehi-
cle speed is above 20 mph (30 km/h).
In the following cases you cannot activate
cruise control:


when you brake


the vehicle is secured with the electric
parking brake


if the automatic transmission is set to
positionP, R, or N


if ESP
® is switched off
Setting current speed

Accelerate or decelerate to the desired
speed.

Briefly lift the cruise control lever in
direction of arrow1 or depress in
direction of arrow2.
The current speed is set.
Warning!
G
Cruise control brakes automatically so that
the set speed is not exceeded. The brake
pedal depresses when cruise control engag-
es the brakes.
Keep driver’s foot area clear at all times, in-
cluding the area under the brake pedal. Ob-
jects stored in this area may impair pedal
movement which could interfere with the
braking ability of the cruise control system.
Do not place your foot under the brake pedal
– your foot could become caught.
Keep in mind that cruise control is a conve-
nience system designed to assist the driver
during vehicle operation. The driver is and
must always remain responsible for the ve-
hicle’s speed and for safe brake operation.


382 Controls in detailDriving systems
Remove your foot from the accelerator
pedal.
Cruise control is activated.

The last set speed appears in the
multifunction display for approxi-
mately 5 seconds.


The corresponding speedometer
segments from the selected speed
to the vehicle maximum speed in
the multifunction display are illumi-
nated.


The set speed is shown by a triangle
in the speedometer.Canceling cruise control
There are several ways to cancel cruise
control:

Step on the brake pedal.
Cruise control is canceled. The last
speed set is stored for later use.
or

Briefly push the cruise control lever in
direction of arrow3.
Cruise control is canceled. The last
speed set is stored for later use.
i
On uphill grades, cruise control may not be
able to maintain the set speed. Once the grade
eases, the set speed will be resumed.
On downhill grades, cruise control maintains the
set speed with braking from the vehicle’s braking
system. In addition, on longer downhill grades
the automatic transmission will automatically
downshift.
i
Upon switching off the engine, the last
stored speed is deleted.
i
Cruise control switches off automatically
when


you step on the brake pedal


the vehicle is secured with the parking brake
In this case the segments in the multifunc-
tion display go out and no warning sounds.


the vehicle speed is below 20 mph
(30 km/h)


the ESP
® is in operation or switched off with
the ESP® switch (
page 73)


you set the automatic transmission toN
while driving
The segments in the multifunction display go out,
and an acoustic warning sounds.
!
Setting the automatic transmission toN
while driving cancels cruise control. However,
the automatic transmission should not be set
toN while driving except to coast when the vehi-
cle is in danger of skidding (e.g. on icy roads).
i
Depressing the accelerator pedal does not
deactivate cruise control. After brief accelera-
tion (e.g. for passing), cruise control will resume
the last speed set.


383 Controls in detail
Driving systems
Setting a higher speed
You can increase the set speed in two
ways.
Adjustment in 1 mph (Canada: 1 km/h)
increments
Briefly lift the cruise control lever to the
resistance point in direction of
arrow1 (
page 381).

Release the cruise control lever.
The vehicle set speed increases in in-
crements 1 mph (Canada: 1 km / h).Adjustment in 5 mph
(Canada: 10 km/h) increments

Briefly lift the cruise control lever past
the resistance point in direction of
arrow1 (
page 381).

Release the cruise control lever.
The vehicle set speed increases in in-
crements 5 mph (Canada: 10 km / h).
Setting a lower speed
You can reduce the set speed in two ways.
Adjustment in 1 mph (Canada: 1 km/h)
increments

Briefly press the cruise control lever
down to the resistance point in direc-
tion of arrow2 (
page 381).
i
The set speed value is increased in 1 mph
(Canada: 1 km/h) increments each time you lift
the cruise control lever up to the resistance
point.
Warning!
G
You can increase the vehicle set 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 set speed to a value
that the prevailing road conditions permit.
Otherwise, sudden and unexpected acceler-
ation of the vehicle could cause an accident
and/or serious injury to you and others.i
The set speed value is increased in 5 mph
(Canada: 10 km/h) increments each time you lift
the cruise control lever up past the resistance
point.
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.
i
When you use the cruise control lever to de-
celerate, the brake system will automatically
brake the vehicle if the engine’s braking power
does not brake the vehicle sufficiently.
i
The set speed value is decreased in 1 mph
(Canada: 1 km/h) increments each time you
press the cruise control lever down to the resis-
tance point.


384 Controls in detailDriving systems
Release the cruise control lever.
The vehicle set speed decreases in in-
crements 1 mph (Canada: 1 km / h).
Adjustment in 5 mph
(Canada: 10 km/h) increments

Briefly press the cruise control lever
down past the resistance point in
direction of arrow2 (
page 381).

Release the cruise control lever.
The vehicle set speed decreases in in-
crements 5 mph (Canada: 10 km / h).
Setting to last stored speed
(“Resume” function)

Briefly pull the cruise control lever in
the direction of arrow4 (
page 381).
The cruise control resumes to 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.
The last set speed appears in the multi-
function display for approximately
5 seconds, and the corresponding speed-
ometer segments from the selected speed
to the vehicle maximum speed are illumi-
nated.
Warning!
G
You can decrease the vehicle set 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 set speed to a value
that the prevailing road conditions permit.
Otherwise, sudden and unexpected deceler-
ation of the vehicle could cause an accident
and/or serious injury to you and others.i
The set speed value is decreased in 5 mph
(Canada: 10 km/h) increments each time you
press the cruise control lever down past the re-
sistance 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 set speed stored in memory should only
be set again if prevailing road conditions
permit. Possible acceleration or decelera-
tion differences arising from returning to the
preset speed could cause an accident
and/or serious injury to you and others.
i
The last stored set speed is deleted when
the engine is turned off.


385 Controls in detail
Driving systems
DISTRONIC Plus*
When activated, the DISTRONIC Plus adap-
tive cruise control system increases driv-
ing convenience afforded by the cruise
control during travel on expressways and
other major roads.

If the DISTRONIC Plus distance sensor
detects a slower moving vehicle direct-
ly ahead, your vehicle speed will be re-
duced so that you follow that vehicle at
a preset distance.


If there is no vehicle directly ahead of
you, DISTRONIC Plus will function in
the same way as cruise control
(page 380).
DISTRONIC Plus functions within a speed
range of 0 to 124 mph (0 to 200 km/h).
Warning!
G
DISTRONIC Plus is a convenience system.
Its speed adjustment reduction capability is
intended to make cruise control more effec-
tive and usable when traffic speeds vary. It
is not however, intended to, nor does it, re-
place the need for extreme care. The re-
sponsibility for the vehicle speed and the
distance to the vehicle ahead, including
most importantly brake operation to assure
safe stopping distance, always rests with
the driver.
DISTRONIC Plus cannot take street and traf-
fic conditions into account.
Complex driving situations are not always
fully recognized by DISTRONIC Plus. This
could result in wrong or missing distance
warnings.
Warning!
G
The DISTRONIC Plus adaptive cruise control
is no substitute for active driving involve-
ment. It does not react to pedestrians or sta-
tionary objects, nor does it recognize or
predict the curvature and lane layout or the
movement of vehicles ahead.
DISTRONIC Plus can only apply a maximum
of 40% of the vehicle’s braking power.
DISTRONIC Plus may not detect narrow ve-
hicles possibly driving in front of you, such
as motorcycles and vehicles driving in an
offset formation.
It is the driver’s responsibility at all times to
be attentive to road, weather and traffic con-
ditions and to provide the steering, braking
and other driving inputs necessary to retain
control of the vehicle.
High-frequency sources such as toll sta-
tions, speed measuring systems etc. can
cause the DISTRONIC Plus system to tem-
porarily cease functioning properly.

392 Controls in detailDriving systemsStarting 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, DIS-
TRONIC Plus functions like cruise control
(
page 380).
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.Stopping
When DISTRONIC Plus detects that the ve-
hicle in front of you is stopping, the vehicle
brakes until it also stops.
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.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 DISTRON-
IC 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
electric 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 electric parking brake.

484 OperationDriving instructionsTire speed rating
Regardless of the tire speed rating, local
speed limits should be obeyed. Use pru-
dent driving speeds appropriate to prevail-
ing conditions.An electronic speed limiter prevents your
vehicle from exceeding a speed of
130 mph (210 km/h). The factory
equipped tires on your vehicle may have a
tire speed rating above the maximum
speed permitted by the electronic speed
limiter.
Make sure your tires have the required tire
speed rating as specified for your vehicle in
the “Technical data” section (
page 655),
for example when purchasing new tires.
For information on how to identify the tire
speed rating on a tire’s sidewall, see “Tire
size designation, load and speed rating”
(
page 518).
If you are uncertain about the correct read-
ing of the information given on a tire’s side-
wall, any authorized Mercedes-Benz
Center will be glad to assist you.
Winter driving instructions
The most important rule for slippery or icy
roads is to drive sensibly and to avoid
abrupt acceleration, braking and steering
maneuvers. Do not use the cruise control
or DISTRONIC Plus* system under such
conditions.
When the vehicle is in danger of skidding,
move gear selector lever to position N. Try
to keep the vehicle under control by cor-
rective steering action.
Warning!
G
Even when permitted by law, never operate
a vehicle at speeds greater than the maxi-
mum speed rating of the tires.
Exceeding the maximum speed for which
tires are rated can lead to sudden tire fail-
ure, causing loss of vehicle control and pos-
sibly resulting in an accident and/or serious
personal injury and possible death, for you
and for others.
i
For information on driving with snow chains,
see “Snow chains” (
page 531).
Warning!
G
On slippery road surfaces, never downshift
in order to obtain braking action. This could
result in drive wheel slip and reduced vehi-
cle control. Your vehicle’s ABS will not pre-
vent this type of control loss.