2003 MERCEDES-BENZ CLK55AMG COUPE sensor

210 Controls in detailDriving systemsWarning indicators
Visual signals indicate to the driver the rel-
ative distance between the sensors and an
obstacle. The warning indicator for the
front area is located above the center air
vents in the dashboard. The warning indi-
cator for the rear area is integrated in the
rear trim.Front area warning indicator1Left side of the vehicle
2Right side of the vehicleEach warning indicator is divided into six
yellow and two red segments for either
side of the vehicle. The Parktronic system
is ready when the border around the indi-
cator is illuminated.
The position of the gear selector lever de-
termines which warning indicators will be
activated.As your vehicle approaches an object, one
or more segments will light up, depending
on the distance. When the eighth segment
lights up, you have reached the minimum
distance.


Front area: An intermittent acoustic
warning will sound as the seventh seg-
ment lights up and a constant acoustic
warning lasting a maximum of three
seconds will sound for the eighth seg-
ment.


Rear area: An intermittent acoustic
warning will sound when the first seg-
ment lights up. This signal quickens
with each additional segment lit. When
the eighth segment illuminates, the
acoustic warning becomes a constant
signal. The signal is canceled when the
selector lever is placed in position D
orP.
Selector lever po-
sition
Warning indicator
D
Front area activated
R or N
Rear area activated
P
Neither activated

248 OperationDriving instructionsControl and operation of radio trans-mitters
COMAND*, radio and telephone*Telephones and two-way radios
Radio transmitters, such as a portable tele-
phone or a citizens band unit should only
be used inside the vehicle if they are con-
nected to an antenna that is installed on
the outside of the vehicle.
Refer to the radio transmitter operation in-
structions regarding use of an external an-
tenna.
Catalytic converter
Your Mercedes-Benz is equipped with
monolithic type catalytic converters, an
important element in conjunction with the
oxygen sensors to achieve substantial con-
trol of the pollutants in the exhaust emis-
sions. Keep your vehicle in proper
operating condition by following our rec-
ommended maintenance instructions as
outlined in your Service Booklet.
Warning!
G
Please do not forget that your primary re-
sponsibility is to drive the vehicle safely.
Only operate the COMAND (Cockpit Man-
agement and Data System), radio or tele-
phone
1 if road, traffic and weather
conditions permit.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of approximately
44 feet (approximately 13.5 m) every sec-
ond.
1Observe all legal requirements.
Warning!
G
Never operate radio transmitters equipped
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna)
from inside the vehicle while the engine is
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system, pos-
sibly resulting in an accident and/or serious
personal injury.
!To prevent damage to the catalytic con-
verters, only use premium unleaded
gasoline in this vehicle.
Any noticeable irregularities in engine
operation should be dealt with prompt-
ly. Otherwise, excessive unburned fuel
may reach the catalytic converter,
causing it to overheat and start a fire.

271 Operation
Vehicle care
Ornamental moldings
For regular cleaning and care of very dirty
chrome-plated parts, use a chrome clean-
er.
Headlamps, tail lamps, turn signal
lenses
Use a mild car wash detergent, such as
Mercedes-Benz approved Car Shampoo,
with plenty of water.
To prevent scratches, never apply strong
force and only use a soft, non-scratchy
cloth when cleaning the lenses. Do not at-
tempt to wipe dirty lenses with a dry cloth
or sponge.Cleaning the Distronic* system sensor
cover
1Distronic* system sensor cover
Use a mild car wash detergent, such as
Mercedes-Benz approved Car Shampoo,
with plenty of water to clean sensor
cover1.To prevent scratches, never apply strong
force and only use a soft, non-scratchy
cloth when cleaning the sensor cover. Do
not attempt to wipe dirty sensors with a
dry cloth or sponge.
iVehicles with KEYLESS-GO*:
If a door handle is hit by a strong jet of
water, and a SmartKey with KEY-
LESS-GO* is in close proximity, i.e.
within approx. 3 ft. (approx. 1 m), the
vehicle could be inadvertently locked
or unlocked.
iRestart the engine after cleaning sen-
sor cover1.

272 OperationVehicle careCleaning the Parktronic* system
sensors
1Parktronic* sensors
Use a mild car wash detergent, such as
Mercedes-Benz approved Car Shampoo
with plenty of water.
When using a steam cleaner or power
washer, aim nozzle only briefly from a min-
imum distance of 4 in. (10 cm) at
sensors1.
To prevent scratches, never apply strong
force and only use a soft, non-scratchy
cloth when cleaning the sensor. Do not at-
tempt to wipe dirty sensors with a dry cloth
or sponge.Wiper blades
Clean the wiper blade inserts with a clean
cloth and detergent solution.
Window cleaning
Use a window cleaning solution on all glass
surfaces. An automotive glass cleaner is
recommended.Light alloy wheels
Mercedes-Benz approved Wheel Care
should be used for regular cleaning of the
light alloy wheels.
If possible, clean wheels once a week with
Mercedes-Benz approved Wheel Care, us-
ing a soft bristle brush and a strong spray
of water.
Follow instructions on container.
iFor safety reasons, switch off wipers
and remove key from starter switch be-
fore cleaning the wiper blades, other-
wise the wiper motor can suddenly turn
on and cause injury.!Fold the windshield wiper arms back
onto the windshield before turning the
key in the starter switch.
iFor safety reasons, switch off wipers
and remove key from starter switch be-
fore cleaning the windshield, otherwise
the wiper motor can suddenly turn on
and cause injury.iOnly use acid-free cleaning materials.
Acid could lead to corrosion.

296 Practical hintsWhat to do if …?Display
Possible cause
Suggested solution
A
Reserve fuel
The fuel level has dropped below the re-
serve mark.

Refuel at the next gas station
(page 251).
Y
Hood open!
You are driving with the hood open.

Close the hood (
page 254).
I
Remove key
You have forgotten to remove the key.

Remove the key from the starter
switch.
Replace key!
No additional code available for SmartKey
or SmartKey with KEYLESS-GO*

Visit an authorized Mercedes-Benz
Center as soon as possible.
.
Lamp sensor
Visit workshop!
The lamp sensor is malfunctioning. The
headlamps switch on automatically.

In the control system, set lamp opera-
tion to manual (
page 129).

Switch on headlamps using the exteri-
or lamp switch.
Low beam, left
The left low beam lamp is malfunctioning.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Low beam, right
The right low beam lamp is malfunction-
ing.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Display defective!
Visit workshop!
The display for the lamps or the system is
malfunctioning.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Turn signal rear left
Substitute lamp on!

The left rear turn signal lamp is malfunc-
tioning. A backup bulb is being used.

Replace the bulb as soon as possible.
Turn signal rear right
Substitute lamp on!

The right rear turn signal lamp is malfunc-
tioning. A backup bulb is being used.

Replace the bulb as soon as possible.

361 Technical terms
ABS
(A
ntilock B
rake S
ystem)
Prevents the wheels from locking up
during braking so that the vehicle can
continue to be steered.
Alignment bolt
Metal pin with thread. The centering
pin is an aid used when changing a tire
to align the wheel with the wheel hub.BabySmart
TM
airbag deactivation
system
This system detects if a special system
compatible child restraint seat is in-
stalled on the front passenger seat. The
system will automatically deactivate
the passenger front airbag when such a
seat is properly installed (indicator
lamp
7
in the center console lights
up). See your authorized
Mercedes-Benz Center for availability.
BabySmartTM
compatible child seats
Special restraint system for children.
The sensor system for the passenger
seat prevents deployment of the pas-
senger side airbag if a BabySmart
TM
compatible child seat is installed.BAS
(B
rake A
ssist S
ystem)
System for potentially reducing braking
distances in emergency braking situa-
tions. The system is activated when it
senses an emergency based on how
fast the brake is applied.
Bi-Xenon headlamps*
Headlamps which use an electric arc as
the light source and produce a more in-
tense light than filament headlamps.
Bi-Xenon headlamps produce low
beam and high beam.

371 Index
Child safety 66
Airbags 58
Infant and child restraint systems 62,
66
LATCH child seat mounts 71
Child safety switch see Blocking of rear
window operation 72
Child seat mounts see LATCH child seat
mounts 71
Cigarette lighter 224Cleaning
Cup holder 273
Distronic* system sensor cover 271
Gear selector lever 273
Hard plastic trim items 273
Headlamps 151
Headliner 273
Instrument cluster 273
Leather upholstery 273
Light alloy wheels 272
Parktronic* system sensor 272
Plastic and rubber parts 273
Seat belts 273
Steering wheel 273
Windows 272
Windshield 48
Wiper blades 272
Clock 23, 128Closing
Cup holder 220, 221
Glove box 219
Hood 254
Side windows 187
Side windows with KEYLESS-GO* 91
Sliding/pop-up roof 190, 314
Sliding/pop-up roof with KEY-
LESS-GO* 189, 192
Sliding/pop-up roof with SmartKey
191
Sliding/pop-up roof* with KEY-
LESS-GO* 91
Trunk 94
Windows 187
Windows with KEYLESS-GO* 189, 192
Windows with SmartKey 188
Closing sliding/pop-up roof
In an emergency 314
Cockpit 20, 362
Cockpit management and data system
(COMAND*) 362
COMAND* 362
COMAND* see separate operating instruc-
tions

373 Index
Headlamps 51
Immobilizer 79
Interior lighting delayed switch-off 132
Rear window defroster 162
Residual heat 164
Seat heater 101
Tow-away alarm 81
Deactivating steering wheel gearshift con-
trol 148
Deceleration
With Distronic* 199
Deep water see Standing water 247
Defogging
Windshield 158
Defrosting 159
Delayed switch-off
Interior lighting 132
Dialing
A number (telephone) 139
Difficulties
While driving see Problems while driv-
ing 49
With starting 44
Digital speedometer 119
Direction of rotation (tires) 261Discharged battery
Jump starting 332
Disconnecting
Vehicle battery 330
Display
Selecting 127, 128
Display elements
Audio system 166
Displays
Digital speedometer 119
Distronic* 198
Messages 256, 283
Selecting 127
Service indicator 266
Showing malfunctions 123
Distance
Decreasing in Distronic* 204
Increasing in Distronic* 204
Setting in Distronic* 203
Warning function 204
Distance to empty (range)
Calling up 136Distance warning function* 204
Activating 205
Deactivating 205
DTR* warning lamp 204
Intermittent warning sound 204
Symbol in multifunction display 122
Distronic* 196, 362
Activated 200
Activating 201
Calling up settings 121, 199
Cleaning system sensor 271
Cruise control lever 200
Deactivated 200
Deactivating 203
Deceleration 199
Decreasing distance 204
Decreasing time interval 203
Displays in the speedometer dial 198
Distance warning function 204
Driving hints 205
Fine adjustment 202
Increasing distance 204
Increasing time interval 203
Intermittent signal tone 198
Menu 199
Messages in display 292