327 Controls in detail
Useful features
When the connection is established, the
message
Call Connected appears in the
multifunction display. The Tele Aid system
will transmit data generating the vehicle
identification number, model, color and
location (subject to availability of cellular
and GPS signals).
A voice connection between the Customer
Assistance Center representative and the
occupants of the vehicle will be estab-
lished. Information regarding the operation
of your vehicle, the nearest
Mercedes-Benz Light Truck Center or
Mercedes-Benz USA products and services
is available to you.
For more details concerning the Tele Aid
system, please visit www.mbusa.com and
use your ID and password (sent to you sep-
arately) to learn more (USA only).
iWhile the call is connected, you can change
to the navigation menu by pressing the NAV
button on the COMAND system headunit.
iThe indicator lamp in the Information
button¡ remains illuminated in red for
approximately 10 seconds during the system
self-check after switching on the ignition
(together with the SOS button and the Roadside
Assistance button•).
See system self-check (
page 323) if the
indicator lamp does not come on in red or stays
on longer than approximately 10 seconds.
If the indicator lamp in the Information
button¡ is flashing continuously and there
was no voice connection to the Response Center
established, then the Tele Aid system could not
initiate an Information call (e.g. the relevant
cellular phone network is not available).
The message
Call Failed appears in the
multifunction display.
Information calls can be terminated using
thet button on the multifunction steering
wheel or the END button on the COMAND
system headunit.
!If the indicator lamps do not start flashing
after pressing one of the buttons or remain
illuminated (in red) at any time, the Tele Aid
system has detected a malfunction or the
service is not currently active, and may not
initiate a call. Visit your authorized
Mercedes-Benz Light Truck Center and have the
system checked or contact the Response Center
at 1-800-756-9018 (in the USA) or
1-888-923-8367 (in Canada) as soon as
possible.
414 Practical hints
What to do if …
Lamps in instrument clusterGeneral information:
If any of the following lamps in the instru-
ment cluster fails to come on during the bulb self-check when switching on the
ignition, have the respective bulb checked
and replaced if necessary.
ProblemPossible cause/consequenceSuggested solution
-The yellow ABS indicator lamp
comes on while the engine is
running.ABS has detected a malfunction and has
switched off. The BAS and the ESP® are also
switched off (see messages in multifunction
display).
The brake system is still functioning normally
but without the ABS available.
If the ABS control unit is malfunctioning,
other systems such as the navigation
system* or the automatic transmission may
also be malfunctioning.
Continue driving with added caution.
Wheels may lock during hard braking,
reducing steering capability.
Read and observe messages in the
multifunction display (
page 427).
Have the system checked at an
authorized Mercedes-Benz Light
Truck Center as soon as possible.
Failure to follow these instructions
increases the risk of an accident.
The charging voltage has fallen below
10 volts. The ABS has switched off.
The battery might not be charged sufficiently.When the voltage is above this value
again, the ABS is operational again and
the ABS indicator lamp should go out.
If the ABS indicator lamp does not go out:
Have the generator (alternator) and
the battery checked.
557 Index
Multifunction display
messages 427–466
ABS 429, 436
AIRMATIC* 465
Brake fluid 447
Brake pads 445
Coolant 448–450
Cruise control 430
Doors 452
EBP 446
Engine coolant 448–450
ESP
®435, 436
Fog lamps, Front 456
Fog lamps, Rear 458
Front passenger front air
bag 438–441
Fuel cap 452
Gear selector lever 437
Headlamps 455–460
Hood 452
Key, SmartKey 454
Key, SmartKey with
KEYLESS-GO* 453, 454Lamps 457
Lamps, exterior 455
Low tire pressure 442, 462, 463
Parking brake 446
Parking lamps 458
SmartKey with KEYLESS-GO* 453
SRS 437
Tele Aid* 461
Telephone* 461
Windshield washer fluid 461
Multifunction steering wheel 30, 158
Button operation 158
N
Navigation system* 167
See separate COMAND system
operating instructions
Net, Cargo* 301
Net, Parcel 307
Neutral gear position, Automatic
transmission 190, 194
New vehicle, Break-in period 338
Night security illumination 146, 179
Normal occupant weight 395
Number, Vehicle Identification
(VIN) 524, 525O
Occupant Classification System see OCS
Occupant distribution 395
Occupant safety 70
Active head restraint 86
Air bags 72
Children and air bags 73, 89
Children in the vehicle 87
Fastening the seat belts 50
Front passenger front air bag off
indicator lamp 77, 81, 82
Infant and child restraint systems 88
LATCH-type child seat anchors 91
OCS 77
OCS, Messages in the multifunction
display 438–441
Seat belts 50, 74
OCS 77
Messages in the multifunction
display 438
Self-test 82
