2006 MERCEDES-BENZ CLK350 brake sensor

269 Controls in detail
Driving systems
Parktronic system (Parking assist)*, Canada only
The 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
(
page 34) and placed the gear selector
lever in positionD,R,orN.The Parktronic system deactivates at
speeds over approximately 11 mph
(18 km/h). At lower speeds the Parktronic
system turns on again.
The Parktronic system also deactivates
when you place the gear selector lever in
positionP.
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 bumper
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
system can be affected by dirty sensors, es-
pecially at times of snow and ice, see
“Cleaning the Parktronic system*
(Canada only) sensors” (
page 369).
Interference caused by other ultrasonic sig-
nals (e.g. working jackhammers, car wash,
or the air brakes of trucks) can cause the
system to send erratic indications, and
should be taken into consideration.Warning!
G
Make sure no persons or animals are in the
area in which you are maneuvering. You
could otherwise injure them.

270 Controls in detailDriving systemsRange 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, see
“Cleaning the Parktronic system*
(Canada only) sensors” (
page 369).
Front sensors
Rear sensorsMinimum distance
If the system detects an obstacle in this
range, all the distance warning segments
illuminate and you hear a warning signal. If
the obstacle is closer than the minimum
distance, the actual distance may no long-
er be indicated by the system.
Center
approx. 40 in (100 cm)
Corners
approx. 24 in (60 cm)
Center
approx. 48 in (120 cm)
Corners
approx. 32 in (80 cm)
!During parking maneuvers, pay special
attention to objects located above or
below the height of the sensors (e.g.
planters or trailer hitches). The
Parktronic system will not detect such
objects at close range and damage to
your vehicle or the object may result.
Ultrasonic signals from outside sourc-
es (e.g. truck air brakes, car wash, or
jackhammers) may impair the opera-
tion of the Parktronic system.
Center
approx. 8 in (20 cm)
Corners
approx. 6 in (15 cm)

405 Practical hints
What to do if …?
Display symbol
Display message
Possible cause/consequence
Possible solution
.
Brake lamp, right
The right brake lamp is malfunctioning.

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

Visit an authorized Mercedes-Benz
Center as soon as possible.
Front foglamp, left
The left front fog lamp is malfunctioning.

Replace the bulb as soon as possible.
Front foglamp, right
The right front fog lamp is malfunctioning.

Replace the bulb as soon as possible.
High beam, left
The left high beam lamp is malfunction-
ing.

Replace the bulb as soon as possible.
High beam, right
The right high beam lamp is malfunction-
ing.

Replace the bulb as soon as possible.
Lamp sensor
Drive to workshop
The lamp sensor is malfunctioning. The
headlamps switch on automatically.

In the control system, set lamp opera-
tion to manual (
page 156).

Switch on headlamps using the exteri-
or lamp switch.

Visit an authorized Mercedes-Benz
Center as soon as possible.
License plate lamp,
left
The left license plate lamp is malfunction-
ing.

Replace the bulb as soon as possible.
License plate lamp,
right

The right license plate lamp is malfunc-
tioning.

Replace the bulb as soon as possible.

491 Technical terms
Restraint systems
Seat belts, child restraints, lower an-
chors and tethers for children (LATCH).
As independent systems, their protec-
tive functions complement one anoth-
er.
Rim
(
page 356)
Roll bars
Occupant protection system which
consists of tubular steel, integrated in
the rear head restraints. The roll bars
are lowered into the car body during
normal driving conditions and raised
automatically in an accident or in a crit-
ical driving situation.RON
(R
esearch O
ctane N
umber)
The Research Octane Number for gaso-
line as determined by a standardized
method. It is an indication of a gaso-
line's ability to resist undesired detona-
tion (knocking). The average of both
the ->MON (Motor Octane Number)
and RON (Research Octane Number) is
posted at the pump, also known as
ANTI-KNOCK INDEX.
RFI*
(R
un F
lat I
ndicator)
The Run Flat Indicator monitors the set
tire inflation pressures by evaluating
each wheel’s rotational speed. If a
wheel’s rotational speed changes due
to falling tire inflation pressure, a corre-
sponding warning message appears in
the multifunction display.Shift lock
When the vehicle is parked, this lock
prevents the gear selector lever from
being inadvertently moved out of
positionP without SmartKey turned
and brake pedal depressed.
Sidewall
(
page 356)
Soft top
Soft top roof that can be opened by
pulling and closed by pressing a switch
and stored in the soft top compartment
in the trunk area.
SRS
(Supplemental R
estraint S
ystem)
Air bags, air bag control unit (with
crash sensor), emergency tensioning
device. Though independent systems,
they are closely interfaced to provide
effective occupant protection.
Steering wheel gearshift control
(CLK 500*, CLK 55 AMG)
You can change the gears yourself with
the steering wheel gearshift buttons.

500 Index
Lamp sensor 405
Locator lighting 129
Low beam see Low beam headlamps
Manual headlamp mode 128
Messages in display 404–408
Night security illumination 129
Replacing bulbs 440, 443
Switch 52, 127
Headliner and shelf below rear window,
Cleaning and care of 371
Head-thorax air bag 68, 489
Heated seats* 122
High beam flasher 52, 131
Replacing bulbs
(Bi-Xenon*) 438, 442
Replacing bulbs
(Halogen) 438, 440
High beam headlamps 52, 131
Indicator lamp 25
Messages in display 405
Replacing bulbs
(Bi-Xenon*) 438, 439
Replacing bulbs
(Halogen) 438, 440
Replacing bulbs for high beam flasher
(Bi-Xenon*) 442Switching on 52, 131
High mounted brake lamp 439
Hood 321
Message in display 403
Horn 23
Hydroplaning 311
I
Identification labels 468
Identification number, Vehicle (VIN) 468
Ignition
with KEYLESS-GO* 36
with SmartKey 34
Immobilizer 92
Indicator lamps see
Lamps, indicator and warning
Infant and child restraint systems see
Children in the vehicle 75
Inflation pressure see
Tires, Inflation pressure
Inside door handle 30, 107
Instrument cluster 24, 136, 489
Cleaning 371
Illumination brightness 136
Lamps in 374–380
Messages in display see
Multifunction display messagesMultifunction display 140
Instrument lighting see Instrument cluster,
Illumination brightness
Instrument panel see Instrument cluster
Instruments and controls see Cockpit
Interior lighting 134
Delayed shut-off 159
Interior rear view mirror 43, 181
Antiglare position 181
Auto-dimming 182
Interior storage spaces see
Storage compartments
J
Jack 415
Jacking up the vehicle 447
Jump starting 456

501 Index
K
Key, Mechanical 419
Key, SmartKey 96
Batteries 99, 105
Battery check lamp 98, 104
Changing batteries 436
Factory setting 98, 99
Ignition 34
Locking/unlocking 32, 60, 96
Locking/unlocking, Global setting 98
Locking/unlocking,
Selective setting 98
Loss of 100, 106
Message in display 403, 404
Opening and closing
the power windows 252
Opening and closing the soft top 260
Positions in starter switch 34
Remote control 96
SmartKey with KEYLESS-GO* 100
Starting the engine 49
Turning off the engine 58
Unlocking/opening trunk lid 99
Key, SmartKey with KEYLESS-GO*
Changing batteries 437KEYLESS-GO* 100, 489
Batteries in SmartKey 105
Battery check lamp, SmartKey 104
Factory setting 103, 105
Ignition 36
Important notes 102
Lock button 60
Locking/unlocking 33, 60, 100
Locking/unlocking,
Global setting 103, 104
Locking/unlocking, Global
with lock button on trunk lid 105
Locking/unlocking,
Selective setting 104
Loss of key 106
Messages in display 403, 404
Remote control 100
Start/stop button 35
Starting the engine 49
Turning off the engine 59
Unlocking/opening trunk lid 106
Kickdown 170, 489
Kilopascal 356L
Labels 468
Certification 468
Emission control information 468
Vacuum line routing diagram 468
Lamp sensor
Messages in display 405
Lamps, exterior 438
Light sensor 405
Messages in display 404–408
Lamps, indicator and warning
ABS 25, 374
Battery (SmartKey) 98, 104
Brakes 25, 375
Center console 381–382
CHECK ENGINE 376
Coolant 377
Coolant temperature 25, 137
Distance warning 25
Engine diagnostics 376
Engine malfunction 25, 376
ESP
®
25, 378
Fog lamps 130
Front passenger front air bag off 68
Front passenger front
air bag off indicator lamp 381

503 Index
MOExtended490
MOExtended system* 452
MON 319, 489
Motor Octane Number see MON
Multicontour seat* see
Seats, Multicontour*
Multifunction display 140, 490
Changing settings see
Control system menus and
Control system submenus
Displaying gear range 171
Selecting language 151
Symbol messages 395–412
Text messages 385–393
Multifunction display messages 383
ABS 385
Battery 395
Brake fluid 396
Brake lamp 404
Brake pads 396
Check engine 397
Coolant 397–399
Display 400
Doors 400
Engine 397
Engine coolant 397–399Engine oil 323, 401
ESP
®
387, 388
Fog lamps 405
Front passenger
front air bag 389–392
Fuel cap 400
Fuel reserve tank 403
Gear selector lever 393
Headlamps 404–408
Hood 403
Key, SmartKey 403
KEYLESS-GO* 403
Lamp sensor 405
Lamps 404
Lamps, exterior 404–408
License plate lamp 405
Parking brake 396
Parking lamps 406
Roll bars 408
Seat belts 409
Soft top 410
SRS 409
Steering gear oil 410
Tele Aid 409
Telephone* 411
Trunk 412Turn signals 407
Windshield washer fluid 412
Multifunction
steering wheel 26, 140, 490
Button operation 140
N
Navigation system* 146
See separate
COMAND* operating instructions
Net, Parcel 280
Neutral gear position 168
New vehicle break-in 306
Night security illumination 129
Normal occupant weight 356
Number, vehicle identification (VIN) 468

504 IndexO
Occupant Classification System see OCS
Occupant distribution 356
Occupant safety 62
Active head restraints 73
Air bags 63
Children and air bags 64
Children in the vehicle 75
ETD 72
Fastening the seat belts 45
Front air bags 67
Front passenger front
air bag off indicator lamp 81, 381
Head-thorax air bags 68
Infant and child restraint systems 75
LATCH-type child seat anchors 83
OCS 78
Rear side-impact air bags* 68
Roll bars 74
Safety guidelines,
Seat belts, Air bag, ETD 66
Seat belts 45, 69
SRS 62
OCS 78, 490
Self-test 82
Odometer 25Oil level see Engine oil, checking level
Oil see Engine oil
One-touch gearshifting 173
Operating safety 209
Operating the vehicle
outside the USA or Canada 13
Ornamental moldings, cleaning 368
Outside temperature see Displays
Overdue maintenance service 362
Overhead control panel 29
Overspeed range, Engine 490
P
Paintwork, Cleaning 365
Panic alarm 86
Parcel net
Front passenger footwell 280
Parking 57, 310
On hills 57, 310
Over combustible materials 57, 310
Parking assist* see
Parktronic system* (Canada only)
Parking brake 50, 57
Message in display 396
Warning sounds 51Parking lamps 127
Message in display 406
Replacing bulbs 438, 439, 441, 442
Parking position
Exterior
rear view mirrors 126, 161, 183
Parktronic system* (Canada only) 269
Cleaning system sensors 369
Malfunction 272
Range of the sensors 270
Switching on/off 272
Warning indicators 271
Warning sounds 271, 272
Parts service 466
PASS AIR BAG OFF indicator lamp see
Front passenger front
air bag off indicator lamp
Passenger compartment 314
Electrical outlet 287
Interior lighting 134
Interior rear view mirror 43
Main fuse box 463
Parcel net in
front passenger footwell 280
Storage bags,
rear side of the front seats 280