125 Controls in detail
Control system
Menus, submenus and functions
Table continued on next page.
Menu1Menu2Menu3Menu4
Standard displayAMG1AUDIONAV*
(page 127)(page 128)(page 133)(page 135)
Commands/submenus
Run Flat Indicator* (Canada only)
or
TPMS (USA only)Engine oil temperatureSelecting radio stationShow route guidance 
instructions, current direction 
traveled
Checking coolant temperatureVehicle supply voltageSelecting satellite radio 
station* (USA only)
Digital speedometer/outside 
temperatureRACETIMEROperating the CD player
Calling up maintenance service 
indicatorOverall analysis
Checking engine oil level 
(SLK 55 AMG only)Lap analysis
1AMG vehicles only. 
204 Controls in detail
Audio system
Program categories
The channels are categorized. Categories 
allow you to tune to stations broadcasting 
a certain type of program (category mode) 
(
page 206).Calling up the SAT main menu
Press SAT soft key.
SAT is displayed in the upper left-hand 
corner of the display.
Prior to activation of the satellite radio 
service (
page 204).
After activation of satellite radio 
service (
page 205).
Prior to activation of the satellite radio 
service
The telephone number of the SIRIUS 
Service Center (1-888-539-7474) is 
displayed.
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, channels and categories shown in 
illustrations and descriptions contained in 
this manual may differ from the channels and 
categories delivered by the service provider.iSatellite radio service may be unavailable 
or interrupted from time to time for a variety of 
reasons, such as environmental 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 other technologies. 
263 Controls in detail
Useful features
To activate, press the SOS button, the 
Roadside Assistance button• or 
the Information button¡, depend-
ing on the type of response required.System self-check
Initially, after switching on ignition, mal-
functions are detected and indicated (the 
indicator lamps in the SOS button, the 
Roadside Assistance button•, and the 
Information button¡ stay on longer 
than 10 seconds or do not come on). The 
message 
Tele Aid Inoperative appears 
for approximately 10 seconds in the multi-
function display.
iThe SOS button is located in the overhead 
control panel.
The Roadside Assistance button• 
(
page 266) and the Information button¡ 
(
page 267) are located in the center armrest 
storage/telephone* compartment.
!The Tele Aid system utilizes the cellular net-
work for communication and the GPS (Global 
Positioning System) satellites for vehicle loca-
tion. If either of these signals are unavailable, 
the Tele Aid system may not function and if this 
occurs, assistance must be summoned by other 
means.
iWhen a Tele Aid call has been initiated, the 
audio system or COMAND* system audio is mut-
ed and the selected mode (radio, tape or CD) 
pauses. The optional cellular phone* (if installed) 
and inserted in cradle switches off. If you must 
use this phone, we recommend that you use it 
only with the vehicle at a standstill in a safe loca-
tion. Remove the phone from the cradle and 
place the call. The COMAND* navigation system 
(if engaged) will continue to run. The display in 
the instrument cluster is available for use, and 
spoken commands are only available by pressing 
the RPT button on the COMAND* unit. A pop-up 
window will appear in the COMAND* display to 
indicate that a Tele Aid call is in progress. After 
the Tele Aid call has ended, the optional cellular 
phone switches on again. A PIN entry might be 
necessary.