327 Practical hints
What to do if …?
Display symbol
Display message
Possible cause
Possible solution
H
TIRE PRES., RR
CAUTION, TIRE
DEFECT!
The right rear tire is deflating.
Bring the vehicle to a halt, avoiding
abrupt braking maneuvers. Observe the
traffic situation around you.
Repair or change the wheel (
page 343).
TIRE PRES., RR
CHECK TIRES!
The right rear tire pressure is low.
Bring the vehicle to a halt. Observe the
traffic situation around you.
Check the tire.
Check and correct tire pressure as re-
quired.
TIRE PRES. MONITOR
REACTIVE AFTER
CORRECTING PRESSURE!
There was a tire pressure warning mes-
sage.
The yellow warning lamp for the tire pres-
sure monitor is on and you have not reac-
tivated the system since the last tire
pressure check.
Activate the tire pressure monitor after
correcting the tire pressure values
(page 275).
Warning!
G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle.
You may lose control of the vehicle. Contin-
ued driving with a flat tire will cause exces-
sive heat build-up and possibly a fire.
328 Practical hintsWhat to do if …?Display symbol
Display message
Possible cause
Possible solution
H
TIRE PRES. MONITOR
REACTIVATED
The tire pressure monitor is using the current
pressure values as the basis for monitoring.
TIRE PRES. MONITOR
CURRENTLY
UNAVAILABLE
The tire pressure monitor is temporarily inop-
erative because:
an additional wheel sensor is in the vehi-
cle
the maximum temperature of the wheel
sensor has been exceeded
a radio source is causing interference
unrecognized wheel sensors have been
installed
Remove any additional wheel sensors
from the vehicle
As soon as the causes of the malfunction
have been removed, the tire inflation
pressure monitor automatically becomes
active again.
TIRE PRES. MONITOR
NOT OPERATIONAL
DRIVE TO WORKSHOP
The tire pressure monitor or a wheel sensor
is malfunctioning.
Have the tire inflation pressure moni-
tor checked by an authorized
Mercedes-Benz Center.
A wheel without proper sensor was installed.
Have the wheels checked.
Warning!
G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle.
You may lose control of the vehicle. Contin-
ued driving with a flat tire will cause exces-
sive heat build-up and possibly a fire.
384 Technical termsCOMAND
(C
ockpit M
anagement and D
ata Sys-
tem)
Information and operating center for
vehicle sound and communications
systems, including the radio and navi-
gation system, as well as other optional
equipment (CD changer, telephone,
etc.).
Control system
The control system is used to call up
vehicle information and to change
component settings. Information and
messages appear in the multifunction
display. The driver uses the buttons on
the multifunction steering wheel to
navigate through the system and to ad-
just settings.
Cruise control
A driving convenience system for auto-
matically maintaining the vehicle speed
set by the driver.Distronic*
A driving convenience cruise control
system which helps the driver maintain
a pre-selected speed:
If there is no vehicle directly ahead,
the system operates in the same
way as conventional ->cruise con-
trol.
If a slower moving vehicle is ahead,
Distronic will reduce your vehicle
speed to the extent permitted by re-
duced throttle and up to 20% brak-
ing power to maintain the preset
minimum following distance.
Engine number
The number set by the manufacturer
and placed on the cylinder block to
uniquely identify each engine pro-
duced.Engine oil viscosity
Measurement for the inner friction (vis-
cosity) of the oil at different tempera-
tures. The higher the temperature an
oil can tolerate without becoming thin,
or the lower the temperature it can tol-
erate without becoming viscous, the
better the viscosity.
ESP
(E
lectronic S
tability Pr
ogram)
Improves vehicle handling and direc-
tional stability.
ETD
(E
mergency T
ensioning D
evice)
Device which deploys in certain frontal
and rear collisions exceeding the sys-
tem's threshold to tighten the seat
belts.
->SRS
385 Technical terms
FSS
(F
lexible S
ervice S
ystem)
Service indicator in the multifunction
display that informs the driver when
the next vehicle maintenance service is
due.
Gear range
Number of gears which are available to
the automatic transmission for shifting.
The automatic gear shifting process
can be adapted to specific operating
conditions using the selector lever.
GPS
(G
lobal P
ositioning S
ystem)
Satellite-based system for relaying
geographic location information to and
from vehicles equipped with special re-
ceivers. Employs DVD digital maps for
navigation.Instrument cluster
The displays and indicator/warning
lamps in the driver’s field of vision, in-
cluding the tachometer, speedometer,
engine temperature and fuel gauge.
KEYLESS-GO*
System for entering and operating the
vehicle without the use of a SmartKey.
Kickdown
Depressing the accelerator past the
point of resistance shifts the transmis-
sion down to the lowest possible gear.
This very quickly accelerates the vehi-
cle and should not be used for normal
acceleration needs.
Line of fall
The direct line that an object moves
downhill when influenced by the force
of gravity alone. Lock button
Button on the door which indicates
whether the door is locked or un-
locked. Pushing the lock button down
on an individual door from inside will
lock that door.
Memory function
Used to store three individual seat,
steering wheel and exterior mirror posi-
tions for each SmartKey or SmartKey
with KEYLESS-GO*.
MON
(M
otor O
ctane N
umber)
The Motor Octane Number for gasoline
as determined by a standardized meth-
od. It is an indication of a gasoline's
ability to resist undesired detonation
(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.
386 Technical termsMultifunction display
Display field in the speedometer used
to present information provided by the
control system.
Multifunction steering wheel
Steering wheel with buttons for operat-
ing the control system.
Overspeed range
Engine speeds within the red marking
of the tachometer dial. Avoid this en-
gine speed range, as it may result in se-
rious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.
Parktronic*
System which uses visual and acoustic
signals to assist the driver during park-
ing maneuvers.
Poly-V-belt drive
Drives engine-components (alternator,
AC compressor, etc.) from the engine.Power train
Collective term designating all compo-
nents used to generate and transmit
motive power to the drive axles, includ-
ing:
Engine
Clutch/torque converter
Transmission
Transfer case
Drive shaft
Differential
Axle shafts/axlesProgram mode selector switch
Used to switch the automatic transmis-
sion between sport operationS and
comfort operationC.
CL 55 AMG with steering wheel gear-
shift control and manual shift program:
in addition toS andC (see above), you
can use theM for manual operation.
Remote 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.
389 Index
A
ABC 210, 383
Messages in display 300
Setting vehicle level 211
ABS 23, 77, 383
Malfunction indicator lamp 292
Messages in display 301
Warning lamp 292
Accelerator position, automatic
transmission 163
Accident
In case of 52
Activating
Air conditioner (cooling) 183
Air recirculation mode 179
Anti-theft alarm system 83
Central locking (control system) 153
Charcoal filter 181
Distance warning function* 207
Distronic* 203
Easy-entry/exit feature 154
ESP 81
Exterior headlamps 49
Exterior lamps 120Exterior rear view mirror parking
position 168
Front and rear fog lamp 121, 122
Hazard warning flasher 124
Headlamps 49
High beams 123
Ignition 31
Ignition with KEYLESS-GO*
start/stop button 33
Immobilizer 55, 82
Limiting opening height of
trunk lid 153
Rear window defroster 182
Residual heat 183
Seat heater 113, 114
Seat ventilation* 115
Tow-away alarm 84
Windshield wipers 50
Activating steering wheel gearshift control
Downshifting 162, 165
Upshifting 162, 165
Adding
Coolant 267
Engine oil 265Additional turn signals 336
Adjustable air vents, rear passenger
compartment 185
Adjusting 34
Air distribution 177
Air volume 178
Backrest tilt 35
Exterior rear view mirror 40
Folding forward front seat
backrests 37
Head restraint height 36
Head restraint tilt 36
Instrument cluster illumination 126
Interior rear view mirror 40
Lumbar support 111
Mirrors 40
Multicontour backrest* 111
Seat cushion depth 35, 111
Seat cushion tilt 35
Seat fore and aft adjustment 35
Seat height 35
Seat in the lumbar region 112
Seat in the shoulder region 111
Seats 34
391 Index
Automatic headlamp mode 120
Automatic lighting control
Activating 124
Deactivating 125
Automatic locking when driving 105
Automatic transmission 157
Accelerator position 163
Deactivating steering wheel gearshift
control 166
Emergency operation (Limp Home
Mode) 166
Fluid level 266
Gear ranges 159
Gear selector lever position 160
Gear shifting malfunctions 166
Kickdown 163
Manual shift program mode
(CL 55 AMG Kompressor) 164
One-touch gearshifting 158
Program mode selector switch 163
Selector lever position 157
Starting the engine 45
Steering wheel gearshift control
(Speedshift) CL 55 AMG 161
Transmission fluid 266
Winter program mode 163, 164B
BabySmart
TM
Airbag deactivation system 71, 383
Compatible child seats 71, 383
Self-test 72
Backrest supports
Lumbar region 112
Shoulder region 111
Backup lamps 337, 340
Bulbs 337
BAS 78, 383
Messages in display 302
Batteries, SmartKey
Changing 333
Check lamp 90, 91
Replacing 332
Battery discharged
Jump starting 351
Battery, SmartKey with KEYLESS-GO
Check lamp 95
Battery, SmartKey with KEYLESS-GO*
Changing 334
Checking the battery 95
Replacing 332Battery, vehicle 268, 348
Charging 349
Disconnecting 349
Reconnecting 350
Reinstalling 349
Removing 349
Bi-Xenon headlamps 383
Block heater (Canada only) 281
Blocking
Rear window operation 75
Brake assist system (BAS) 383
Brake fluid 258, 375
Brake lamp bulbs 337
Brake lamp, high mounted 337
Brake pads
Message in display 305
Brakes 248
Warning lamp 293
Break-in period 246
Bulbs, replacing 336
Additional turn signals 336
Backup lamps 337
Brake lamps 337
Fog lamps 336
393 Index
Child safety switch see Blocking of rear
window operation 75
Cigarette lighter 228
CL 55 AMG Kompressor
MANUAL shift program mode 164
Cleaning
Cup holder 289
Distronic* system sensor cover 287
Gear selector lever 289
Hard plastic trim items 289
Headlamps 170
Headliner and shelf below rear
window 289
Instrument cluster 289
Leather upholstery 290
Light alloy wheels 289
Nubuck leather upholstery 290
Parktronic* system sensor 287
Plastic and rubber parts 290
Seat belts 289
Steering wheel 289
Upholstery 290
Windows 288Windshield 51
Wiper blades 287
Wood trims 290
Clock 23
Closing
Cup holder 226
Glove box 221
Hood 261
Power window with
KEYLESS-GO* 189
Power window with SmartKey 188
Side windows 187, 188
Sliding/pop-up roof 191, 335
With SmartKey 193
Sliding/pop-up roof with
KEYLESS-GO* 194
Trunk 98
Windows 186
Closing sliding/pop-up roof
In an emergency 335
Cockpit 20, 383
Cockpit management and data system
(COMAND) 384COMAND 384
COMAND see separate operating instruc-
tions
Combination switch 123
High beam flasher 49, 123
Turn signals 49
Windshield wipers 50
Consumer information 380
Control and operation of radio
transmitters 254
Control system 129, 384
AUDIO menu 134
Checking oil level 262
Convenience submenu 154
Display digital speedometer 134
Distronic* menu 142
Functions 131, 133
Instrument cluster submenu 148
Lighting submenu 149
Malfunction memory menu 144
Menus 132, 133
Multifunction display 129
Multifunction steering wheel 130