Page 201 of 376

201 Controls in detail
Useful features
The Tele Aid system
(Tele
matic A
larm I
dentification on D
e-
mand)
The Tele Aid system consists of three 
types of response:
automatic and manual emergency
roadside assistance and 
information.
The Tele Aid system is operational provid-
ing that the vehicle’s battery is charged, 
properly connected, not damaged and cel-
lular and GPS coverage is available.
The speaker volume of a Tele Aid call can 
be adjusted when using the volume control 
on the multifunction steering wheel. To 
raise, press button
æ 
and to lower, 
press button
ç
.
To activate, press the SOS button, the 
Roadside Assistance button
•
 or 
the Information button
¡
, depend-
ing on the type of response required.Shortly after the completion of your Ac-
quaintance Call, you will receive a user ID 
and password via first call mail. By visiting 
www.mbusa.com and selecting “Tele Aid” 
(USA only), you will have access to account 
information, remote door unlock, and 
more.System self-check
Initially, after turning the key in the starter 
switch to position 2, malfunctions are de-
tected and indicated (the indicator lamps 
in the SOS button, the Roadside Assis-
tance button
•
 and the Information 
button
¡
 stay on longer than 
10 seconds or do not come on). The mes-
sage 
Tele Aid – Visit workshop!
 ap-
pears for approx. 10 seconds in the 
multifunction display.
iThe SOS button is located above the in-
side rear view mirror.
The Roadside Assistance button
•
 
and the Information button
¡
 are 
located below the center armrest cov-
er.
!The Tele Aid system utilizes the cellular 
network for communication and the 
GPS (Global Positioning System) satel-
lites for vehicle location. 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. 
     
        
        Page 202 of 376

202 Controls in detailUseful features
Emergency calls
An emergency call is initiated automatical-
ly:
following an accident in which the 
emergency tensioning devices (ETDs) 
or airbags deploy,
if the anti-theft alarm or the tow-away 
alarm stays on for more than 
20 seconds. See anti-theft alarm sys-
tem (
page 75) and tow-away alarm 
(
page 77).
An emergency call can also be initiated 
manually by opening the cover next to the 
inside rear view mirror labeled SOS, then 
briefly pressing the button located under 
the cover. See below for instructions on 
initiating an emergency call manually.Once the emergency call is in progress, the 
indicator lamp in the SOS button will begin 
to flash. The message 
Emergency call – 
Connecting call
 appears in the multifunc-
tion display. When the connection is estab-
lished, the message 
Emergency call – 
Call connected
 appears in the multifunc-
tion display. All information relevant to the 
emergency, such as the location of the ve-
hicle (determined by the GPS satellite loca-
tion system), vehicle model, identification 
number and color are generated.
A voice connection between the Response 
Center and the occupants of the vehicle 
will be established automatically soon af-
ter the emergency call has been initiated. 
When a voice connection is established the 
audio system mutes and the message 
Tele Aid
 Emergency call active
 appears 
in the multifunction display. The Response 
Center will attempt to determine more pre-
cisely the nature of the accident provided 
they can speak to an occupant of the vehi-
cle.
Warning!
G
If the indicator lamps in the SOS button, in 
the Roadside Assistance button, and/or in 
the Information button do not come on dur-
ing the system self-check, or if any of these 
indicators remain illuminated continuously 
in red and/or the message 
TELE AID - 
VISIT WORKSHOP!
 is displayed in the mul-
tifunction display after the system 
self-check, a malfunction in the system has 
been detected.
If a malfunction is indicated as outlined 
above, the system may not operate as ex-
pected. Have the system checked at the 
nearest Mercedes-Benz Center as soon as 
possible 
     
        
        Page 259 of 376

259 Practical hints
What to do if …
Left display
Right display
Possible cause
Possible solution
ABC
Visit workshop!
The capability of the ABC system is re-
stricted.
Do not exceed a speed of 50 mph (80 km/h).
Visit an authorized Mercedes-Benz Center as 
soon as possible.
Display defective
Visit workshop!
The ABC display or the ABC system it-
self is malfunctioning.
Visit an authorized
Mercedes-Benz Center as soon as possible.
ABS
Defective!
Visit workshop!
The ABS has detected a malfunction 
and has switched off. The ESP and 
BAS are also deactivated. The SBC 
brake system is still functioning nor-
mally but without ABS available.
Continue driving with added caution.
Visit an authorized
Mercedes-Benz Center as soon as possible.
Failure to follow these instructions increases the 
risk of accident.
Display defective
Visit workshop!
ABS or the ABS display is malfunction-
ing.
Continue driving with added caution.
Visit an authorized
Mercedes-Benz Center as soon as possible.
Failure to follow these instructions increases the 
risk of accident. 
     
        
        Page 260 of 376
260 Practical hintsWhat to do if …Left display
Right display
Possible cause
Possible solution
BAS
Defective!
Visit workshop!
The BAS has detected a malfunc-
tion and switched off. The ESP 
and ABS are also deactivated. 
The SBC brake system is still 
functioning normally but without 
ABS available.
Continue driving with added caution.
Visit an authorized
Mercedes-Benz Center as soon as possible.
Failure to follow these instructions increases the 
risk of accident.
Display defective
Visit workshop!
BAS or the BAS display is mal-
functioning.
Continue driving with added caution.
Visit an authorized
Mercedes-Benz Center as soon as possible.
Failure to follow these instructions increases the 
risk of accident. 
     
        
        Page 261 of 376
261 Practical hints
What to do if …
Left display
Right display
Possible cause
Possible solution
ESP
Defective!
Visit workshop!
The ESP is deactivated because of 
a malfunction or an interrupted 
power supply. The SBC brake sys-
tem is still functioning normally. 
The ABS may still be operational.
With the vehicle stationary, turn the steering 
wheel completely to the left and then to the 
right to synchronize the ESP.
If the ESP message does not go out:
Continue driving with added caution.
Visit an authorized 
Mercedes-Benz Center as soon as possible.
Failure to follow these instructions increases the 
risk of accident.
Display defective 
Visit workshop!
ESP or the ESP display is malfunc-
tioning.
Continue driving with added caution.
Visit an authorized
Mercedes-Benz Center as soon as possible.
Failure to follow these instructions increases the 
risk of accident. 
     
        
        Page 262 of 376
262 Practical hintsWhat to do if …Left display
Right display
Possible cause
Possible solution
Distronic
External fault
Reactivate!
Distronic* is switched off and is 
temporarily unavailable.
Try activating Distronic* again later.
Clear sensor!
See Owner’s Man.
Distronic* is switched off be-
cause the Distronic* cover in the 
radiator grille is dirty.
Clean the Distronic* cover in the radiator grille 
(page 246).
Restart the vehicle.
Visit workshop!
Distronic* is malfunctioning or 
the display is malfunctioning.
Visit an authorized
Mercedes-Benz Center as soon as possible.
P
Selector lever
to P!
You have turned off the engine 
with the KEYLESS-GO* 
start/stop button* and opened 
the driver’s door.
Place the selector lever in position P.
Cruise
Control
Visit workshop!
Cruise control or Distronic* is 
malfunctioning.
Have the cruise control or Distronic* checked 
by an authorized Mercedes-Benz Center. 
     
        
        Page 263 of 376
263 Practical hints
What to do if …
Left display
Right display
Possible cause
Possible solution
G 
Display defective
The instrument cluster display is 
malfunctioning.
Continue driving with added caution.
Visit an authorized Mercedes-Benz Center as 
soon as possible.
L 
Visit workshop!
One or more main functions of the 
Tele Aid system are malfunctioning.
Have the Tele Aid system checked by an au-
thorized Mercedes-Benz Center.
# 
Battery/Alternator
Stop vehicle!
The battery is malfunctioning.
The SBC brake system requires elec-
trical energy and therefore has only 
limited operation. Considerably 
greater brake pedal force is required 
and the stopping distance is in-
creased.
S t o p  t h e  v e h i c l e  a s  s o o n a s  i t  i s  s a f e  t o  d o  s o .  
Adjust driving to be consistent with reduced 
braking responsiveness.
Notify an authorized Mercedes-Benz Center. 
     
        
        Page 265 of 376
265 Practical hints
What to do if …
Left display
Right display
Possible cause
Possible solution
2 
Brake lining wear!
Visit workshop!
The brake pads have reached their 
wear limit.
Have the brake pads replaced as soon as 
possible.
T
 Brake defective!
Stop vehicle!
The SBC brake system is in emer-
gency operation mode. Consider-
ably greater brake pedal force is 
required and the stopping distance 
is increased.
The maximum speed is limited to 
55 mph (90 km/h).
Do not drive any further. 
Stop the vehicle and notify an authorized 
Mercedes-Benz Center.
Significantly greater force must be applied 
to the brake pedal.
Call for roadside assistance.
Reduced
brake effect
Start engine!
The battery has insufficient voltage 
and cannot supply sufficient power 
to the SBC brake system.
Start the engine.
As soon as the engine is running, the mes-
sage disappears.
!Brake pad thickness must be visually 
checked by a qualified technician at the 
intervals specified in the Service book-
let.