Page 170 of 506

169 Controls in detail
Automatic transmission
Automatic shift program
The program mode selector switch is
located on the lower part of the center
console.
1Program mode selector switch
C Comfort For comfort driving
S Sport For standard driving
The current gear selector lever position
and the selected program mode (
C/S) are
indicated in the multifunction display
(
page 164).
Press program mode selector
switch1 repeatedly until the letter of
the desired program mode appears in
the multifunction display.
SelectCfor comfort driving:
The vehicle starts out in second
gear (both forward and reverse) for
gentler starts. This does not apply if
full throttle is applied or gear
range1 is selected.
Traction and driving stability are
improved on icy roads.
Upshifts occur earlier even when
you give more gas. The engine then
operates at lower rpms and the
wheels are less likely to spin.
!Never change the program mode when
the gear selector lever is out of
positionP. This could result in a
change of driving characteristics for
which you may not be prepared.iThe last selected program
mode (CorS) is switched on when the
engine is restarted.
Page 175 of 506

174 Controls in detailAutomatic transmissionThe program mode selector switch is
located on the lower part of the center
console.
1Program mode selector switch
M Manual For manual gear shifting
C Comfort For comfort driving
S Sport For standard driving
The current gear selector lever position
and the selected program mode (
M/C/S)
are indicated in the multifunction display
(
page 164).Activating manual shift program
Press program mode selector
switch1 repeatedly until the
M for
manual program modeM appears in
the multifunction display.
The transmission switches to the
manual program modeM. Automatic
shifting is switched off. The gear range
is not limited.
You can change the gears manually when
the gear selector lever is in positionD. You
can upshift or downshift through the gears
in succession.Downshifting
Briefly press the gear selector lever to
the left in theD-direction
(page 165).
or
Press button1 on the left side of the
steering wheel (
page 172).
The transmission shifts to the next
lower gear.
Warning!
G
On slippery road surfaces, never downshift
in order to obtain braking action. This could
result in drive wheel slip and reduced
vehicle control. Your vehicle’s ABS will not
prevent this type of loss of control.iWhen you brake or stop, the transmis-
sion shifts down to a gear from which
you can easily accelerate or take off.
Page 214 of 506

213 Controls in detail
Audio system
Introduction to satellite radio* (USA only)
SIRIUS satellite radio provides 100 chan-
nels of digital-quality radio, among others
music, sports, news, and entertainment,
free of commercials. SIRIUS satellite radio
uses a fleet of high-power satellites to
broadcast 24 hours per day, coast to
coast, in the contiguous U.S.
This diverse, satellite-delivered program-
ming is available for a monthly subscrip-
tion fee.
For more information and service
availability call the SIRIUS Service Center
(page 217), or contact
www.siriusradio.comProgram categories
The channels are categorized. Categories
allow you to tune to stations broadcasting
a certain type of program (category mode)
(
page 216).
iAdditional satellite radio equipment
and a subscription to a satellite radio
service provider are required for the
satellite radio operation described
here.
Contact an authorized Mercedes-Benz
Center for details and availability for
your vehicle.
Note that categories and channels
shown in illustrations are dependent on
programming content delivered by the
service provider. Programming content
is subject to change. Therefore, chan-
nels and categories shown in illustra-
tions and descriptions contained in this
manual may differ from the channels
and categories delivered by the service
provider.
iSatellite radio service may be unavail-
able or interrupted from time to time
for a variety of reasons, such as envi-
ronmental or topographic conditions
and other things beyond the service
provider’s or our control. Service might
also not be available in certain places
(e.g., in tunnels, parking garages, or
within or next to buildings) or near oth-
er technologies.
Page 493 of 506

492 IndexTele Aid 277
Emergency calls 278
Information 281
Initiating an
emergency call manually 279
Messages in display 388
Remote door unlock 283
Roadside Assistance 280
Stolen vehicle tracking services 283
System self-check 277
Tele Aid System 277
Upgrade signals 282
Tele Aid System 466
Telematics* 466
Telephone* 26, 276
Answering a call 161
Dialing a number
from the phone book 161
Ending a call 161
Hands-free microphone 29
Loading phone book* 161
Messages in display 390
Operating 160
Operation 224
Redialing 162Temperature
Display mode 145
Setting interior temperature 183
Setting units in display 145
Tires 323
Tightening torque 466
Tightening torque (Wheel bolts) 426
Time
Setting hours 147
Setting minutes 148
TIN 338
Tire
Vehicle maximum load on 338
Tire and Loading Information 317
Tire and loading terminology 335
Tire care and maintenance 314
Tire Identification Number see TIN
Tire inflation pressure
Checking 304, 322, 324
Tire inspection 314
Tire load rating 338
Tire ply composition
and material used 338
Tire speed rating 296, 328, 338
Tire terminology 335
Tire traction 296Tires 313, 445
Direction of rotation 316
Driving instructions 295
Retreads 313
Rims and tires 445
Rotating 339
Service life 314
Temperature 323, 334
Tread depth 315, 340
Wear pattern 339
Winter 340
Tools 391
Tow-away alarm 27, 91
Disarming 92
Disarming for transport 91
Towing eye bolt (vehicle tool kit)
CLK 320/CLK 500 434
CLK 55 AMG 435
Installing 434
Installing (CLK 55 AMG) 435
Towing the vehicle 432
Tracking services
For stolen vehicle 283
Traction 169, 338
Transmission see Automatic transmission
Traveling abroad 299