Page 73 of 464

73 Safety and Security
Occupant safety
Child seat anchors – LATCH type
This vehicle is equipped with two LATCH
(Lower A
nchors and T
ethers for CH
ildren)
type anchors (at each of the rear seats) for
the installation of a LATCH child seat with
matching anchor fittings.
If child seats are not installed, the LATCH
anchors can be folded back between the
seat cushion and the seat backrest.1Indicates the position of the anchors
2Anchors
3Release button
Grip inner side of anchors2 and fold
forward until they audibly lock in place.
Install child seat according to the man-
ufacturer’s instructions.
To fold anchors back
Press down button3 on each anchor
and return the anchor2 to its catch.
Warning!
G
Do not place powered-on laptops, cell
phones and like electronic devices on the
front passenger seat. Signals from such de-
vices may interfere with the BabySmart
TM1
system. Such signal interference may cause
the PASS. AIRBAG OFF indicator lamp not to
come on during self-test or be continuously
lit, indicating that the system is not
functioning.
1BabySmart
TM is a trademark of Siemens
Automotive Corp.
iYour cabriolet does not have and is not
required to have anchorage rings for a
child seat’s top tether strap in the rear
seating positions. Child seats can be
used with the lower anchor system
and/or seat belt, fully in accordance
with the child seat manufacturer’s in-
structions.
iThe child seat must be firmly attached
in the right and left side anchors.iNon-LATCH type child seats may also
be used and can be installed using the
vehicle’s seat belt system. Install child
seat according to the manufacturer’s
instructions.
Page 123 of 464
123 Controls in detail
Lighting
Combination switch
The combination switch is located on the
left side of the steering column.
1High beam
2High beam flasher
Switching on high beams
Turn exterior lamp switch to
positionB or toU
(page 119).
Push the combination switch in
direction1.The high beam indicator A on the
instrument cluster is illuminated
(
page 22).
High beam flasher
Pull the combination switch briefly in
direction2.
Hazard warning flasher
The hazard warning flasher can be activat-
ed with the ignition switched on or off. It is
activated automatically when an airbag is
deployed.
The switch is located on the center con-
sole.
1Hazard warning flasher switch
Switching on the hazard warning
flasher
Press the hazard warning flasher
switch.
All turn signals will flash.
Page 319 of 464

319 Practical hints
What to do if …?
Lamp in center consoleProblem
Possible cause
Suggested solution
PASS. AIRBAG OFF
The indicator lamp comes on.
A BabySmart
TM1
child seat is installed on the
front passenger seat. Therefore the passen-
ger front airbag is switched off.
1BabySmart
TM is a trademark of Siemens Automotive Corp.
Have the system checked as soon as
possible by an authorized
Mercedes-Benz Center.
The system is malfunctioning when there is
no BabySmart
TM child seat installed on the
front passenger seat.
PASS. AIRBAG OFF
The indicator lamp does not
come on with a BabySmart
TM
child seat properly installed on
the front passenger seat.
The system is malfunctioning.
Make sure there is nothing between
seat cushion and child seat and check
installation of the child seat.
If the light remains out, have the sys-
tem checked as soon as possible by
an authorized Mercedes-Benz Center.
Do not use the BabySmart
TM restraint
to transport children on the front pas-
senger seat until the system has been
repaired.
Page 419 of 464

419 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
TM1
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 PASS. AIRBAG OFF in the center
console comes on). See your autho-
rized Mercedes-Benz Center for avail-
ability.
BabySmart
TM compatible child seats
Special restraint system for children.
The sensor system for the passenger
seat prevents deployment of the pas-
senger front 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.
1BabySmart
TM
is a trademark of Siemens
Automotive Corp.
Page 424 of 464

424 Technical termsRemote Vehicle Diagnostics
Transmission of vehicle data and cur-
rent location to the Mercedes-Benz
Customer Assistance Center for sub-
scribers to Tele Aid service.
REST
(Residual engine heat utilization)
Feature that uses the engine heat
stored in the coolant to heat the vehi-
cle interior for a short time after the en-
gine has been turned off.
Restraint systems
Seat belts, belt tensioners, airbags and
child restraint systems. As indepen-
dent systems, their protective func-
tions complement one another.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.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.
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.
Speedshift (CLK 55 AMG)
Steering wheel gearshift control. You
can change the gears yourself with the
steering wheel gearshift buttons.
SRS
(S
upplemental R
estraint S
ystem)
Seat belts, emergency tensioning de-
vice and airbags. Though independent
systems, they are closely interfaced to
provide effective occupant protection.
Page 428 of 464

428 IndexAir pressure see Tire inflation pressure
Air recirculation mode 178
Activating 178
Deactivating 179
Air vents, rear passenger compartment
Adjustable 182
Air volume
Adjusting 177
Airbags 59
BabySmart
TM airbag
deactivation system 71, 419
Children 60
Front 63
Head-thorax 63
Passenger 63
Rear side-impact 64
Safety guidelines 62
Alarm
Audible 75, 84, 86
Canceling 84, 86
Visual 83
Alarm system
Anti-theft 83
Alignment bolt 382
Alignment bolt (vehicle tool kit) 419Anticorrosion/antifreeze 415
Antiglare
Automatic 168
Antilock brake system (ABS) 419
Anti-theft alarm system
Arming 83
Canceling alarm 84, 86
Disarming 84
Anti-theft systems 82
Anti-theft alarm system 83
Immobilizer 82
Tow-away alarm 84
Aquaplaning see Hydroplaning
Armrest
Storage spaces 251
Ashtray (Center console) 253
Opening 253
Reinstalling 254
Removing 253
Ashtray (Rear seat) 254
Opening 254
Reinstalling 254
Removing 254At the gas station 284
ATF (automatic transmission fluid) 291
AUDIO menu 134
Selecting radio station 135
Selecting satellite radio* station 135
Audio system 183
Audio and telephone, operation 183
Button and soft key operation 186
Cassette operation 196
CD operation 199
Operating and display elements 184
Operating safety 183
Operation 186
Radio operation 189
Sound system 183
Switching off 186
Switching on 186
Telephone operation 203
Automatic antiglare for
rear view mirror 168
Automatic central locking
Activating/deactivating
(control system) 149
Locking/unlocking
(central locking switch) 108
Page 430 of 464

430 IndexBi-Xenon headlamps* 419
Block heater* 301
Blocking
Rear window operation 74
Bolts
For Minispare wheel 347
Brake assist system (BAS) 419
Brake fluid 412
Message in display 327
Brake lamp bulbs 373
Brake lamp, high mounted 373
Brake pads
Message in display 327
Brakes 274
Warning lamp 313
Break-in period 272Bulbs, replacing 372
Additional turn signals 373
Backup lamps 373
Brake lamps 373
Fog lamps 373
Front lamps 373
High beam (Bi-Xenon*) 373
High beam (Halogen) 373
High beam flasher (Bi-Xenon*) 373
High beam flasher (Halogen) 373
High mounted brake lamp 373
License plate lamps 373, 378
Low beam (Bi-Xenon*) 373
Low beam (Halogen) 373
Parking lamps 373, 375, 377
Rear fog lamp 373, 378
Side marker lamps 373, 377
Standing lamps 373, 375, 377
Tail lamp assemblies 373, 378
Turn signal lamps 373
Button
Audio system 186C
CAC (Customer Assistance Center) 420
Calling up
Distronic* settings 137
Range (distance to empty) 153
Service indicator 303
CAN system 420
Canceling
Cruise control 227
Capacities
Fuels, coolants, lubricants, etc. 410
Cassette operation
Playing cassettes 196
Cassette player
Operating 136
Catalytic converter 281
CD changer* 199
CD operation 199
CD player
Operating 136
Center console 25
Lower part 26
PASS. AIRBAG OFF
indicator lamp 319
Upper part 25
Page 431 of 464

431 Index
Centigrade
Setting temperature units 142
Central locking
Automatic 107
From inside 108
Locking from inside 108
Switch 108
Switching on/off
(control system) 149
Unlocking from inside 108
Central locking switch 108
Changing
Batteries (SmartKey with
KEYLESS-GO*) 351
Batteries (SmartKey) 350
Key setting 149
Changing CDs 199
Charcoal filter 179
Activating 179
Deactivating 180
Charging
Vehicle battery 386
CHECK ENGINE
malfunction indicator lamp 314Checking
Coolant level 292
Oil level 286, 289
Tire inflate pressure 286
Vehicle lighting 286
Child safety 69
Airbags 60
Infant and child
restraint systems 64, 69
LATCH child seat anchors 73
Child safety switch see
Blocking of rear window operation
Child seat anchors see
LATCH child seat anchors
Cigarette lighter 254Cleaning
Cup holder 309
Distronic* system sensor cover 308
Gear selector lever 309
Hard plastic trim items 310
Headlamps 167
Headliner 310
Instrument cluster 309
Leather upholstery 310
Light alloy wheels 309
Nubuck leather upholstery
(CLK 55 AMG) 310
Parktronic* system sensor 308
Plastic and rubber parts 310
Seat belts 310
Soft top 306
Steering wheel 309
Upholstery 310
Windows 309
Windshield 50
Wiper blades 308
Wood trims 310
CLK 55 AMG
Manual shift program mode 164
Clock 23, 144