2007 MERCEDES-BENZ S550 malfunction

395 Controls in detail
Driving systems
Setting to last stored speed (“Resume”
function)
Briefly pull the DISTRONIC Plus lever in
the direction of arrow4 (
page 390).
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 390).
or

Step on the brake pedal.
DISTRONIC Plus will be deactivated.
The last speed set will be stored into
memory.
If the vehicle has been stopped by DIS-
TRONIC Plus and a malfunction occurs in
the system, the message “Brake immedi-
ately” will appear on the multifunction dis-
play. Step on the brake immediately to
prevent the vehicle from rolling. DISTRON-
IC Plus is then switched off and the mes-
sage disappears.
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 following message will appear in the
multifunction display for approximately
5 seconds:
DISTRONIC PLUS Off
The last stored speed is deleted when you turn
off the engine.
i
DISTRONIC Plus deactivates automatically
when:


the vehicle is secured with the electric park-
ing brake


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


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


you set the automatic transmission toP, R,
or N while driving


the radar sensors are switched off
(page 256).
The segments in the multifunction display go out,
an acoustic warning sounds, and the message
“DISTRONIC PLUS Off” appears in the multifunc-
tion display for approximately 5 seconds.

398 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,
DISTRONIC Plus will switch off, and the
message:
DISTRONIC PLUS
currently unavailable
See Oper. Manual
appears in the multifunction display.
For cleaning and care of the
DISTRONIC Plus sensor, see “Cleaning the
DISTRONIC Plus* system sensor cover”
(page 537).Another cause might be that the radar sen-
sors have been manually switched off in
the instrument cluster control system.
Please verify that the radar sensors are
switched on (
page 256).
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 Plus
could lose sight of a vehicle traveling in
front of it, then your vehicle could accel-
erate to the previously selected speed.
DISTRONIC Plus regulates only the distance
between your vehicle and those directly
ahead of it. It may not register stationary ob-
jects 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 Plus should not be used in
snowy or icy road conditions.
i
If the message:
DISTRONIC PLUS
currently unavailable
See Oper. Manual
disappears during driving and the last speed
stored flashes for approximately 5 seconds, the
dirt (e.g. slush) has dissolved; DISTRONIC Plus is
again operational.


408 Controls in detailDriving systemsSwitching Parktronic system on/off
The Parktronic system can be switched off
manually.
The Parktronic button with the indicator
lamp is on the control panel on the
right-hand side of the instrument cluster.
1Parktronic button
2Indicator lamp

Switching off the Parktronic sys-
tem: Press button 1.
Indicator lamp 2 comes on.

Switching on the Parktronic system:
Press button 1 again.
Indicator lamp 2 goes out.
Parktronic system malfunction
If only the red distance segments illumi-
nate and an acoustic warning sounds,
there is a malfunction in the Parktronic
system. The Parktronic system will auto-
matically switch off after 20 seconds and
the indicator lamp in the Parktronic switch
comes on.

Have the Parktronic system checked
by an authorized Mercedes-Benz Cen-
ter as soon as possible.
If only the red distance segments illumi-
nate and no acoustic warning sounds, the
Parktronic system sensors are dirty or
there is an interference from other radio or
ultrasonic signals. The Parktronic system
will automatically switch off after 20 sec-
onds and the indicator lamp in the Park-
tronic switch comes on.

Switch off the ignition (
page 315).

Clean the Parktronic system sensors
(page 538).

Switch on the ignition.
or

Check the Parktronic system operation
at another location to rule out interfer-
ence from outside radio or ultrasonic
signals.
i
The Parktronic system is automatically
switched on when the ignition is switched on
(
page 315).

409 Controls in detail
Driving systems
Park Assist*
Park Assist is an electronic parking aid
with radar sensors that helps you while
parking.
It visually and audibly indicates the relative
distance between the vehicle and an ob-
stacle.Park Assist is automatically activated
when the engine is running and the trans-
mission is in position D, R or N.
The Park Assist system deactivates at
speeds over approximately 11 mph
(18 km/h). At lower speeds the Parktronic
system turns on again.
Park Assist is also switched off when the
transmission is in position P or switch off
the engine.
While the transmission is in position N,
Park Assist is switched off if you secure the
vehicle in place with the electric parking
brake.
The Park Assist system monitors the sur-
roundings of your vehicle with four sensors
in the front bumper and two sensors in the
rear bumper.Warning!
G
Park Assist 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.Warning!
G
Make sure no persons or animals are in the
area in which you are maneuvering. You
could otherwise injure them.!
Special attention must be paid to objects
with smooth surfaces or low silhouettes (e.g.
trailer couplings, painted posts, elevated cross-
bars or road curbs). Such objects may not be de-
tected by the system and can damage the
vehicle.
!
The operational function of the Park Assist
system can be affected by dirty sensors, espe-
cially at times of snow and ice.
Make sure that the area on the bumpers around
the sensors is free of dirt, ice and/or slush,
otherwise Park Assist may not function properly,
see “Cleaning the Park Assist* system sensors”
(
page 538).
!
High-frequency sources such as toll sta-
tions, speed measuring systems, etc. can cause
the Park Assist system to malfunction. You can
switch off the Park Assist using the Park Assist
button (
page 412) or switch off the radar sen-
sors (
page 256) to prevent possible malfunc-
tion.
i
In certain countries and near radio-astrolog-
ical facilities, you must switch off the radar sen-
sors (page 256).

423 Controls in detail
Driving systems
Night View Assist* malfunctionProblem
Possible cause
Suggested solution
The quality of the Night View Assist image
has diminished.
The windshield wipers are leaving streaks
on the windshield.

Replace windshield wiper blades
(page 627).
The area of the windshield within the cam-
era’s field of view is dirty.

Clean windshield (
page 539).
The area of the windshield within the cam-
era’s field of view has been damaged.

Replace windshield.
The area of the windshield within the cam-
era’s field of view is fogged over.

Remove condensation (
page 539).
The area of the windshield within the cam-
era’s field of view is iced over.

Defrost windshield (
page 429).

441 Controls in detail
Power tilt/sliding sunroof
Power tilt/sliding sunroof
Opening and closing power tilt/sliding sunroofWarning!
G
When closing the tilt/sliding sunroof, make
sure that there is no danger of anyone being
harmed by the closing procedure.
If the tilt/sliding sunroof encounters an ob-
struction that blocks its path in a circum-
stance where you are closing the tilt/sliding
sunroof by moving the tilt/sliding sunroof
switch past the resistance point, or by
pressing and holding button‹on the
SmartKey, by pressing and holding the sen-
sor surface (vehicles with KEYLESS-GO*) on
the outside door handle, the automatic re-
versal function will not operate.
The opening/closing procedure of the
tilt/sliding sunroof can be immediately halt-
ed by releasing the switch or, if the switch
was moved past the resistance point and re-
leased, by moving the switch in any direc-
tion.
The tilt/sliding sunroof is made out of glass.
In the event of an accident, the glass may
shatter. This may result in an opening in the
roof.
In a vehicle rollover, occupants not wearing
their seat belts or not wearing them properly
may be thrown out of the opening. Such an
opening also presents a potential for injury
for occupants wearing their seat belts
properly as entire body parts or portions of
them may protrude from the passenger
compartment.
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. Unsupervised use of vehi-
cle equipment can cause an accident
and/or serious personal injury.!
To avoid damaging the seals, do not trans-
port any objects with sharp edges which can
stick out of the tilt/sliding sunroof.Do not open the tilt/sliding sunroof if there is
snow or ice on the roof, as this could result in
malfunctions.
The tilt/sliding sunroof can be opened or closed
manually should an electrical malfunction occur
(
page 617).
i
When the tilt/sliding sunroof is open, reso-
nance noises may result in addition to the usual
wind noises. They are caused by minimal pres-
sure changes in the passenger compartment. To
reduce or eliminate these noises, change the po-
sition of the tilt/sliding sunroof or open a side
window slightly.
i
You can also open or close the tilt/sliding
sunroof using the SmartKey, see “Summer open-
ing feature” (
page 355) and “Convenience
closing feature” (page 356). Depending on
current position, the tilt/sliding sunroof may
also open or close when the air recirculation
button, (
page 426) is pressed and held
for 2 seconds.
i
If PRE-SAFE
® has been activated, the
tilt/sliding sunroof closes automatically until
only a small gap remains.

442 Controls in detailPower tilt/sliding sunroof1Push back to slide sunroof open
2Push forward to slide sunroof closed
3Push up to raise sunroof at rear
4Pull down to lower sunroof at rear
With the sunroof closed or tilted open, a
screen can be slid into the roof opening to
help provide shade. When sliding the sun-
roof open, the screen will also retract.
Switch on the ignition (
page 315).

To open, close, raise or lower, move the
switch to resistance point in the re-
quired direction1to4 until the
tilt/sliding sunroof has reached the de-
sired position.

Express-operation: To open, close,
raise or lower, move the switch past
the resistance point in the required
direction1to4 and release.
The tilt/sliding sunroof opens or closes
completely.

Stopping during Express-opening/
closing: Move the switch in any direc-
tion.
Synchronizing
The tilt/sliding sunroof must be synchro-
nized

after the tilt/sliding sunroof has been
closed manually (
page 617)


if the tilt/sliding sunroof can only be
opened with a jerking motion


after a malfunction

Switch on the ignition (
page 315).

Press and hold the sunroof switch in
the direction of arrow3 until the
tilt/sliding sunroof is fully raised at the
rear.
Keep holding the sunroof switch in the
direction of arrow3 for approximately
1 second.

Check the Express-operation feature
(page 442).
If the tilt/sliding sunroof opens com-
pletely, the sunroof is synchronized.
Otherwise repeat the above steps.
i
With the SmartKey in starter switch
position0 or removed from the starter switch,
the tilt/sliding sunroof can be operated


until you open the driver’s or passenger door


for up to approximately 5 minutes
i
If the movement of the tilt/sliding sunroof is
blocked during the closing procedure, the sun-
roof will stop and reopen slightly.
!
Do not open the tilt/sliding sunroof com-
pletely if it is not aligned. Otherwise you could
damage the tilt/sliding sunroof.

444 Controls in detailPanorama roof with power tilt/sliding panel*Operating rear roller sunblind from rearRear door control panel1Retracting
2Extending
Extending: Press button2 on the
rocker switch until the rear roller sun-
blind has reached the desired position.

Retracting: Press button1 on the
rocker switch until the rear roller sun-
blind has reached the desired position.Opening and closing panorama roof
with power tilt/sliding panelWarning!
G
When opening or closing the tilt/sliding pan-
el, make sure that there is no danger of any-
one being harmed by the opening or closing
procedure.
The opening procedure of the tilt/sliding
panel can be immediately halted by releas-
ing the switch or, if the switch was moved
past the resistance point and released, by
moving the switch in any direction.
The closing procedure of the tilt/sliding
panel can be immediately halted by releas-
ing the switch.
The panorama roof with power tilt/sliding
panel is made out of glass. In the event of an
accident, the glass may shatter. This may re-
sult in an opening in the roof.
In a vehicle rollover, occupants not wearing
their seat belts or not wearing them properly
may be thrown out of the opening.
Such an opening also presents a potential
for injury for occupants wearing their seat
belts properly as entire body parts or por-
tions of them may protrude from the pas-
senger compartment.
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle. Do not leave children
unattended in the vehicle, or with access to
an unlocked vehicle. Unsupervised use of
vehicle equipment can cause an accident
and/or serious personal injury.!
To avoid damaging the seals, do not trans-
port any objects with sharp edges which can
stick out of the tilt/sliding panel.
Do not open the tilt/sliding panel if there is snow
or ice on the roof, as this could result in malfunc-
tions.
The tilt/sliding panel can be opened or closed
manually should an electrical malfunction occur
(
page 617).