2003 MERCEDES-BENZ E320 WAGON phone

194 Tele Aid
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
If the indicator lamp in the Information button¡ is
illuminated 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 “INFO – CALL FAILED” appears
in the multifunction display.
Information calls can be terminated using the
ìbutton on the multifunction steering wheel.
Important!
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 fault
or the service is not currently active, and may not
initiate a call. Visit your Mercedes-Benz 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.Upgrade Signals
Tele Aid system processes calls using the following
priority.
•Automatic emergency – First priority
•Manual emergency – Second priority
•Roadside assistance – Third priority
•Information – Fourth priority
Should a higher priority call be initiated while you are
connected, an upgrade (alternating) tone will be heard,
and the appropriate indicator lamp will flash. If certain
information such as vehicle identification number or
customer information is not available, the operator may
need to retransmit. During this time you will hear a
beep and voice contact will be interrupted. Voice contact
will resume once the retransmission is completed. Once
a call is concluded, a beep will be heard and the
appropriate indicator lamp will stop flashing. The
COMAND system operation will resume (only vehicles
with COMAND).

195 Tele Aid
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Important!
If the indicator lamp continues to flash or the system
does not reset, contact the Response Center at
1-800-756-9018 (in the USA) or 1-888-923-8367 (in
Canada), or Mercedes-Benz Customer Assistance at
1-800-FOR-MERCedes (1-800-367-6372) in the USA or
Customer Service at 1-800-387-0100 in Canada.
Notes:
The indicator lamp in the respective button flashes until
the call is concluded. Calls can only be terminated by a
Response Center or Customer Assistance Center
representative except Roadside Assistance and
Information calls, which can also be terminated by
pressing ìbutton on the multifunction steering
wheel.When a Tele Aid call has been initiated, the audio
system or the COMAND system audio (only vehicles
with COMAND) is muted and the selected mode (radio,
tape or CD) pauses. The optional cellular phone (if
installed) switches off. If you must use this phone, the
vehicle must be parked. Disconnect the coiled cord 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.

196 Tele Aid
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Remote door unlock
In the case you have your vehicle locked unintentionally
(e.g. key inside vehicle), and no other key is available,
contact the Mercedes-Benz Response Center at
1-800-756-9018 (in the USA) or 1-888-923-8367 (in
Canada). You will be asked to provide your password
which you provided when you completed the subscriber
agreement.
Then return to your vehicle and pull tailgate recessed
handle for minimum of 20 seconds until the SOS button
is flashing. The message “EMERGENCY CALL -CALL
CONNECTED” appears in the multifunction display.
As an alternative, you may unlock the vehicle via
Internet using the ID and password sent to you shortly
after the completion of your Acquaintance Call.
The Response Center will then unlock your vehicle with
the remote door unlocking feature.Notes:
The remote door unlock feature is available if the
relevant cellular phone network is available.
The SOS button will flash and the message
“EMERGENCY CALL – CALL CONNECTED” will appear
in the multifunction display to indicate receipt of the
door unlock command.
Once the vehicle is unlocked, a Response Center
specialist will attempt to establish voice contact with the
vehicle occupants.
If the tailgate recessed handle was pulled for more than
20 seconds before door unlock authorization was
received by the Response Center, you must wait
15 minutes before pulling the tailgate recessed handle
again.

273 Engine compartment
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Checking engine oil level
E 320 shown
1Oil dipstick
2Oil filler cap
To check the engine oil level, park vehicle on level
ground, with engine at normal operational temperature.
Check engine oil level approximately 5 minutes after
stopping the engine, allowing for the oil to return to the
oil pan.The engine oil level can be checked by either the oil
dipstick or via the multifunction display in the
instrument cluster.
Wipe oil dipstick clean prior to checking the engine oil
level. Fully insert dipstick in tube, and remove after
three seconds to obtain accurate reading.
The oil level must be between the lower
mark (min) and the upper mark (max)
on the oil dipstick.
Fill quantity between upper and lower dipstick marking
level is approximately 2.1 US qt (2.0 l).
Do not overfill the engine.
Excessive oil must be drained or siphoned. It could
cause damage to engine and catalytic converter not
covered by the Mercedes-Benz Limited Warranty.
See malfunction and warning messages on page 261 if
an engine oil level display appears on the multifunction
display when the engine is running.
Note:
See page 117 for engine oil level indicator.
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336 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
Index
AABS (Antilock brake system) .......................................227
Malfunction indicator lamp ..................................... 248
ABS-SYSTEM - malfunction and warning
messages .................................................................... 253
Adjusting steering wheel ................................................ 81
Air conditioner refrigerant ........................................... 330
Air distribution .............................................................. 130
Air volume ...................................................................... 130
Airbag deactivation system ............................................ 65
AIRBAG OFF indicator lamp ........................................249
Airbags .............................................................................. 68
Alarm system ..............................................................39, 41
Anticorrosion/antifreeze ................... 220, 275, 328, 332
Antilock brake system (ABS) .......................................227
Malfunction indicator lamp ..................................... 248
Antitheft alarm system ................................................... 39
Aquaplaning ................................................................... 217
Armrest, rear bench ...................................................... 162
Ashtrays .......................................................................... 166
Center console, front ................................................ 166
Rear doors .................................................................. 167Audio system .................................................................. 135
Anti-theft system ....................................................... 137
Button and soft key operation ................................. 138
Cassette mode ............................................................ 143
CD changer ................................................................. 148
CD mode ..................................................................... 147
Operating and display elements ............................. 136
Operating safety ........................................................ 135
Operation – audio and telephone ........................... 135
Radio mode ................................................................ 141
Telephone operation ................................................. 151
Audio systems ................................................................... 97
Cassette player ............................................................ 99
CD player ......................................................................98
Radio .............................................................................97
Automatic central locking .............................................. 35
Automatic climate control ............................................ 126
Activated charcoal filter ........................................... 132
Air distribution .......................................................... 130
Air recirculation ........................................................ 131
Air volume .................................................................. 130
Basic setting ............................................................... 129
Defogging windows ................................................... 129
Defrosting ...................................................................129
Display and controls .................................................128
Dust filter ................................................................... 131

337 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex Economy ..................................................................... 129
Front center console compartment ventilation .... 133
Rear passenger compartment adjustable
air outlet ................................................................ 134
Rear window defroster ............................................. 130
Residual engine heat utilization (REST) ............... 132
Special settings ......................................................... 129
Automatic transmission ...............................................203
Emergency operation ............................................... 211
Fluid level ................................................................... 274
Program mode selector switch ............................... 210
Selector lever position ..............................................206
Transmission selector lever, manually
unlocking .............................................................. 296
BBabySmart
TM airbag deactivation system ..................... 65
Self-test ......................................................................... 65
BAS (Brake assist system) ............................................ 225
Malfunction indicator lamp ..................................... 247
Battery .............................................................................289
Battery recycling ....................................................... 290
BATTERY / ALTERNATOR - malfunction and
warning messages ....................................................252
Block heater .................................................................... 221BRAKE ASSIST - malfunction and warning
messages ................................................................... 253
Brake assist system (BAS) ........................................... 225
Malfunction indicator lamp .................................... 247
Brake fluid ..................................................................... 330
BRAKE FLUID - malfunction and warning
messages ................................................................... 254
BRAKE LINING WEAR - malfunction and warning
messages ................................................................... 254
Brake pad wear .............................................................. 254
Brake warning lamp ..................................................... 245
Brake fluid low ......................................................... 245
Brakes .................................................... 214, 225, 227, 230
Bulbs
Replacing bulbs ........................................................ 297
CCapacities
Fuels, coolants, lubricants etc. .............................. 328
Cargo tie-down rings ..................................................... 178
Catalytic converter ......................................................... 198
CD changer ...................................................................... 148
Audio systems ..............................................................97
Cellular telephone .......................................................... 179
Center console .................................................................. 20

338 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
Central locking switch .................................................... 34
Central locking system ................................................... 27
Automatic central locking ......................................... 35
Choosing global or selective mode ........................... 30
Electronic key .............................................................. 25
Locking and unlocking .............................................. 29
Mechanical keys .......................................................... 31
Remote control ............................................................ 25
Summer opening/convenience feature ................... 30
CHECK ENGINE malfunction indicator lamp ............ 244
Check regularly and before a long trip ...................... 241
Checking engine oil level
Via engine oil level indicator ...................................117
Via oil dipstick ...........................................................273
Child restraint ..................................................... 57, 65, 77
Child seat
Infant and child restraint systems ........................... 77
Cleaning and care of the vehicle ................................. 314
Clock, setting ...................................................................110
Coin holder in glove box lid ......................................... 163
COMAND, radio, telephone and two-way radio ........ 186
Combination switch ...................................................... 122
Consumer information .................................................. 334
Control and operation of radio transmitters ............. 186
COOLANT (coolant level) - malfunction and
warning messages ....................................................256Coolant level ................................................................... 274
Adding coolant .......................................................... 275
Checking ..................................................................... 274
COOLANT TEMP. - malfunction and warning
messages ................................................................... 257
Coolant temperature gauge ............................................90
Coolants .......................................................................... 332
Anticorrosion/antifreeze quantity ........................ 333
Cruise control ................................................................ 222
Cup holder
In center console ....................................................... 165
In glove box lid .......................................................... 163
In rear bench armrest ............................................... 162
DDaytime running lamps ................................................120
Standing water
Driving instructions .................................................221
DISPLAY DEFECTIVE (engine control unit) -
malfunction and warning messages ......................251
DISPLAY DEFECTIVE (several systems) - malfunction
and warning messages ............................................. 251
Display illumination ........................................................89
Doors ..................................................................................32
Drinking and Driving .................................................... 213

343 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex Multifunction display ...................................................... 92
Audio systems ............................................................. 97
Engine oil level indicator ........................................... 96
FSS (Flexible service system) ................................... 96
Individual settings .....................................................110
Malfunction message memory ............................... 108
Navigation system ..................................................... 105
Telephone ................................................................... 100
Trip and main odometer ............................................ 96
Trip computer ............................................................ 106
Vehicle speed ............................................................... 96
Multifunction steering wheel ........................................ 92
Setting the audio volume ..........................................113
NNavigation system - Multifunction display ................ 105
Night security Illumination ......................................... 120OOn-board diagnostic system .........................................244
Operator’s manual ............................................................. 8
Outside temperature indicator ...................................... 90
Overhead control panel ................................................... 21
PPanic button ...................................................................... 31
Parcel net in front passenger footwell ........................ 178
Parking ............................................................................ 216
Parking assist (Parktronic) .......................................... 234
Malfunction ............................................................... 238
Parktronic switch ..................................................... 238
Sensors ...................................................................... 235
Warning indicators .................................................. 236
Parking brake ............................... 212, 214, 216, 231, 245
PA R K I N G B R A K E - m a l f u n c t i o n a n d
warning messages ................................................... 255
Power assistance ............................................................ 214
Power seats, front ............................................................. 42
Power windows ............................................................... 154
Blocking of rear door window operation ............... 155
Opening and closing ...................................................30
Synchronizing ........................................................... 156
Problems with your vehicle ............................................ 14
Product information .......................................................... 7