2003 MERCEDES-BENZ CL55AMG sensor

116 Controls in detailInstrument clusterOutside temperature indicatorThe temperature sensor is located on the
lower left-hand side of the instrument clus-
ter (
page 22). Due to its location, the
sensor can be affected by road or engine
heat during idling or slow driving. There-
fore, the accuracy of the displayed temper-
ature can only be verified by comparison to
a thermometer placed next to the sensor,
not by comparison to external displays
(e.g. bank signs etc.).When moving the vehicle into colder ambi-
ent temperatures (e.g. when leaving your
garage), you will notice a delay before the
lower temperature is displayed.
A delay also occurs when ambient temper-
atures rise. This prevents inaccurate tem-
perature indications caused by heat
radiated from the engine during idling or
slow driving.
Warning!
G
The outside temperature indicator is not de-
signed to serve as an ice-warning device and
is therefore unsuitable for that purpose.
Indicated temperatures just above the freez-
ing point do not guarantee that the road sur-
face is free of ice. The road may still be icy,
especially in wooded areas or on bridges.

151 Controls in detail
Good visibility
Good visibility
Information on the windshield wipers
(page 47) and for setting the rear view
mirrors (
page 38) is found in the “Get-
ting started” section.
Rear view mirror
Automatic antiglare rear view mirror
The reflection brightness of the exterior
rear view mirror on the driver’s side and
the inside rear view mirror will respond au-
tomatically to glare when

the ignition is switched on, and


incoming light from headlamps falls on
the sensor in the inside rear view mir-
ror.
The rear view mirror will not react if


reverse gear is engaged


the interior lighting is turned on
Warning!
G
The automatic antiglare function does not
react if incoming light is not aimed directly
at sensors in the inside rear view mirror.
The inside rear view mirror and the exterior
rear view mirror on the driver’s side do not
react, for example, if the rear window sun-
shade is in raised position.
Glare can endanger you and others.Warning!
G
In the case of an accident liquid electrolyte
may escape from the mirror housing if the
mirror glass breaks.
Electrolyte has an irritating effect. Do not al-
low the liquid to come into contact with
eyes, skin, clothing, or respiratory system.
In case it does, immediately flush affected
area with water, and seek medical help if
necessary.
Warning!
G
Exercise care when using the passenger
side exterior rear view mirror. The mirror
surface is convex (outwardly curved surface
for a wider field of view). Objects in mirror
are closer than they appear. Check your in-
side rear view mirror or glance over your
shoulder before changing lanes.!Electrolyte drops coming into contact
with the vehicle paint finish can be
completely removed only while in the
liquid state by applying plenty of water.

154 Controls in detailGood visibilityWindshield wipers
Information on the windshield wipers is
found in the “Getting started” section
(page 47).
A rain sensor automatically controls the
windshield wipers depending on how wet
the windshield is.

Switch on ignition.

Set the wiper switch to position I
(page 47).
After the initial wipe, pauses between
wipes are automatically controlled by the
rain sensor which monitors the wetness of
the windshield.
Headlamp cleaning system
The switch is located on the left side of the
dashboard.
1Headlamp washer switch
Switch on ignition.

Press switch1.
iIntermittent wiping is interrupted when
the vehicle is at a standstill and a front
door is opened.
!To prevent the windshield wipers from
being damaged, do not leave the wiper
switch in intermittent setting when the
vehicle is taken to an automatic car
wash or when cleaning the windshield.
The switch should not be left in inter-
mittent setting as the wipers will wipe
the windshield once every time the en-
gine is started. Dust that accumulates
on the windshield might scratch the
glass when wiping occurs on a dry
windshield. iIf intermittent wiping is on and you turn
the key in the steering lock from posi-
tion 1 to position 2 (
page 31) and
keep the key in that position longer
than 2 seconds, the wipe interval will
be set to approx. 5 seconds.

170 Controls in detailPower windows
Turn key in the starter switch to
position1 or2.
Opening the windows

Lightly press switch
k
to resistance
point.
The window will move downwards until
you release the switch.
Closing the windows

Lightly press switch
j
to resistance
point.
The window will move upwards until
you release the switch.
If you pull and hold the switch up when
closing the window, and upward move-
ment of the window is blocked by some
obstruction including but not limited to
arms, hands, fingers etc., the automat-
ic reversal will not operate.Fully opening the windows

Press switch
k
past the resistance
point and release.
Fully closing the windows

Press switch
j
past the point of re-
sistance and release.
!If the upward movement of the window
is blocked during the closing proce-
dure, the window will stop and open
slightly.
Remove the obstruction, press the
switch
j
again past the resistance
point and release.
If the window still does not close when
there is no obstruction, then hold the
switch
j
down. The side window
will then close without the obstruction
sensor function.
Warning!
G
Driver's door only:
If within five seconds you again press the
switch past the resistance point and re-
lease, the automatic reversal will not func-
tion.

179 Controls in detail
Driving systems
Distronic*
When activated, the Distronic adaptive
cruise control system increases driving
convenience afforded by the cruise control
during travel on expressways and other
major roads.

If the Distronic distance sensor detects
a slower moving vehicle directly ahead,
your vehicle speed will be reduced so
that you follow that vehicle at a preset
distance.


If there is no vehicle directly ahead of
you, Distronic will function in the same
way as cruise control (
page 176).
Warning!
G
Distronic adaptive cruise control is no sub-
stitute for active driving involvement. It does
not react to stationary objects, nor recog-
nize or predict the curvature and lane layout
or the movement of vehicles ahead. Distron-
ic can only apply a maximum of 20% of the
vehicle’s braking power.
It is the driver’s responsibility at all times to
be attentive to traffic and road conditions
and to provide the steering, braking and oth-
er driving inputs necessary to retain control
of the vehicle.Warning!
G
Distronic is a convenience system. Its speed
adjustment reduction capability is intended
to make cruise control more effective and
usable when traffic speeds vary. However, it
is not intended to, nor does it, replace the
need for extreme care. The responsibility for
the vehicle speed and the distance to the ve-
hicle ahead, including most importantly
brake operation to assure safe stopping dis-
tance, always rests with the driver.
Distronic cannot take street and traffic con-
ditions into account.
Warning!
G
Distronic requires familiarity with its opera-
tional characteristics. We strongly recom-
mend that you review the following
information carefully before operating the
system.iFor operation in the USA only: This de-
vice complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions:

This device may not cause harmful
interference, and


this device must accept any inter-
ference received, including interfer-
ence that may cause undesired
operation.
Any unauthorized modification to this
device could void the user’s authority
to operate the equipment.

189 Controls in detail
Driving systems
The most likely cause for a malfunctioning
system is a dirty sensor (located behind
the hood grill), especially at times of snow
and ice or heavy rain. In such a case, Dis-
tronic will switch off, and the message DISTRONIC - CLEAN SENSOR! SEE OPERA-
TOR'S MAN.
appears in the multifunction
display.
For cleaning and care of the Distronic sen-
sor, see “Cleaning the Distronic system
sensor” (
page 259).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.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.
iIf the message
DISTRONIC - CLEAN
SENSOR! SEE OPER. MANUAL
disappears
during driving and the last speed stored
flashes for approximately five seconds,
the dirt (e.g. slush) has dissolved;
Distronic is again operational.

193 Controls in detail
Driving systems
Normal level (see table)
Speed dependent lowering of vehicle chas-
sis (approximate values):

between 0 mph (0 km/h) and 40 mph
(65 km/h) – none


between 40 mph (65 km/h) and
87 mph (140 km/h) – lowered pro-
gressively by approx. 0.4 in (11 mm).Raised level 1 (see table)
Speed dependent lowering of vehicle chas-
sis (approximate values)


between 0 mph (0 km/h) and 38 mph
(60 km/h) - raised by approx. 0.55 in
(14 mm)


between 38 mph (60 km/h) and
100 mph (160 km/h) - lowered pro-
gressively by approx. 0.55 in (14 mm)
Raised level 2 (see table)
Speed dependent lowering of vehicle chas-
sis (approximate values):


between 0 mph (0 km/h) and 18 mph
(30 km/h) - raised by approx. 0.95 in
(24 mm)


between 18 mph (30 km/h) and
38 mph (60 km/h) - lowered progres-
sively by approx. 0.4 in (10 mm)


between 38 mph (60 km/h) and
100 mph (160 km/h) – lowered pro-
gressively by additional approx. 0.55 in
(14 mm).
Parktronic system* (Parking assist)
iPressing the switch twice in quick suc-
cession will cause the vehicle to imme-
diately raise or lower according to the
starting level.
The selected vehicle level setting re-
mains stored in memory even if the en-
gine is turned off and restarted.
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
can be affected by dirty sensors, especially
at times of snow and ice, see “Cleaning the
Parktronic system sensors” (
page 259).
Interference caused by other ultrasonic sig-
nals (e.g. working jackhammers or the air
brakes of trucks) can cause the system to
send erratic indications, and should be tak-
en into consideration.

194 Controls in detailDriving systemsThe Parktronic system is an electronic aid
designed to assist the driver during park-
ing maneuvers. It visually and audibly indi-
cates the relative distance between the
vehicle and an obstacle.
The Parktronic system is automatically ac-
tivated when you switch on the ignition
and release the parking brake. The Park-
tronic system deactivates at speeds over
11 mph (18 km/h). At lower speeds the
Parktronic system turns on again.The Parktronic system monitors the sur-
roundings of your vehicle with six sensors
in the front bumper and four sensors in the
rear bumper.
1Sensors in the front bumperRange of the sensors
To function properly, the sensors must be
free of dirt, ice, snow and slush. Clean the
sensors regularly, being careful not to
scratch or damage the sensors.Warning!
G
Make sure that no persons or animals are in
the area in which you are maneuvering. You
could otherwise injure them.