2004 MERCEDES-BENZ C320 4MATIC WAGON oil

ContentsOperation......................................... 237
The first 1 000 miles (1 500 km) ......... 238
Driving instructions ............................ 239
Drive sensibly – save fuel ............. 239
Drinking and driving ..................... 239
Pedals .......................................... 239
Power assistance ......................... 239
Brakes .......................................... 240
Driving off..................................... 241
Parking ......................................... 241
Tires ............................................. 242
Hydroplaning ................................ 242
Tire traction .................................. 243
Tire speed rating .......................... 243
Winter driving instructions ........... 244
Standing water ............................. 245
Passenger compartment .............. 245
Driving abroad .............................. 245
Control and operation of radio
transmitter ................................... 246
Catalytic converter ....................... 246
Emission control........................... 247
Coolant temperature .................... 248At the gas station .............................. 249
Refueling ...................................... 249
Check regularly and before
a long trip ..................................... 251
Engine compartment ......................... 252
Hood ............................................ 252
Engine oil ..................................... 254
Transmission fluid level ................ 256
Coolant level ................................ 257
Battery ......................................... 258
Windshield washer system and
headlamp cleaning system* ......... 259
Tires and wheels ................................ 260
Important guidelines .................... 260
Life of tire..................................... 261
Direction of rotation ..................... 261
Checking tire inflation pressure ... 261
Rotating wheels ........................... 262Winter driving .................................... 263
Winter tires .................................. 263
Block heater (Canada only) .......... 264
Snow chains................................. 264
Maintenance...................................... 265
Clearing the service indicator ...... 265
Service term exceeded ................ 265
Calling up the service indicator .... 266
Resetting the service indicator .... 266
Vehicle care....................................... 267
Cleaning and care of the vehicle .. 267

ContentsTechnical data.................................. 335
Spare parts service ............................ 336
Warranty coverage ............................. 337
Loss of Service and Warranty
Information Booklet...................... 337
Identification labels............................ 338
Layout of poly-V-belt drive ................. 339
C 240/C 320 (all models) ............ 339
Engine ................................................ 340
Rims and Tires ................................... 341
Same size tires ............................. 342
Minispare wheel ........................... 342
Electrical system................................ 343
Main Dimensions ............................... 344
Weights .............................................. 345Fuels, coolants, lubricants, etc. ......... 346
Capacities .................................... 346
Engine oils.................................... 348
Engine oil additives ...................... 348
Air conditioning refrigerant .......... 348
Brake fluid .................................... 348
Premium unleaded gasoline ......... 349
Fuel requirements ........................ 349
Gasoline additives ........................ 350
Flexible Fuel Vehicles ................... 350
Coolants....................................... 352
Windshield washer and headlamp
cleaning* system ......................... 354
Consumer information ....................... 355
Uniform tire quality grading ......... 355
Technical terms............................... 357Index................................................. 363

115 Controls in detail
Control system
Menus, submenus and functions
Menu1
Menu2
Menu3
Menu4
Menu5
Menu6
Menu7
Standard display
AUDIO
NAVI*
Malfunction
memory
Settings
Trip computer
Telephone*
Commands/submenusCoolant
temperature display
Select radio station
Activate route
guidance
Call up malfunc-
tion messages
Reset to factory
settings
Fuel consumption
statistics after
start
Load phone
book
Digital speedometer
Operate CD
player*
Instrument clus-
ter submenu
Fuel consumption
statistics since
the last reset
Search for
name in
phone book
Call up FSS
Operate cassette
player
Lighting
submenu
Call up range
Check engine oil
level
Vehicle
submenuConvenience
submenu

116 Controls in detailControl system
Standard display menu
You can select the functions in the
standard display menu with buttonk
orj.
The following functions are available:
Display digital speedometer
Press buttonj twice.
The current vehicle speed is shown in
the multifunction display.
AUDIO menu
The functions in the
AUDIO
menu operate
the audio equipment which you currently
have turned on.
If no audio equipment is currently turned
on, the message
AUDIO OFF
is shown in the
display.
The following functions are available:
iThe headings used in the menus table
are designed to facilitate navigation
within the system and are not neces-
sarily identical to those shown in the
control system displays.
The first function displayed in each
menu will automatically show you
which part of the system you are in.
Function
Page
Call up coolant temperature
display
108
Call up digital speedometer
116
Call up FSS
265
Check engine oil level
254
Function
Page
Select radio station
117
Select satellite radio station*
117
Operate CD player*
118
Operate cassette player
119

229 Controls in detail
Useful features
Remote door unlock
In case you have locked your vehicle unin-
tentionally (e.g. SmartKey inside vehicle),
and the reserve SmartKey is not handy:
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 pass-
word which you provided when you
completed the subscriber agreement.

Then return to your vehicle and pull the
tailgate recessed handle for a minimum
of 20 seconds until the SOS button is
flashing.
The message
EMERGENCY CALL –
CALL CONNECTED appears in the multi-
function display.
As an alternative, you may unlock the vehi-
cle 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.
iWhen a Tele Aid call has been initiated,
the audio system or the COMAND* sys-
tem audio 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. Dis-
connect 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 com-
mands 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.
iThe remote door unlock feature is avail-
able if the relevant cellular phone net-
work 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.

251 Operation
At the gas station
Check regularly and before a long trip
1Coolant level
For more information on coolant, see
“Coolant level” (
page 257).
2Brake fluid (fuse box cover removed)
Removing fuse box cover
(
page 333).
3Windshield washer and headlamp
cleaning system*
For more information on filling up the
washer reservoir, see “Windshield
washer system and headlamp cleaning
system*” (
page 259).Engine oil level
For more information on engine oil level,
see “Engine oil” (
page 254).
Opening hood (
page 252).
Vehicle lighting
Check function and cleanliness. For more
information on replacing light bulbs, see
“Replacing bulbs” (page 310).
Exterior lamp switch (page 100).
Tire inflation pressure
More information on tire inflation pressure
(
page 261).
!If you find that the brake fluid in the
brake fluid reservoir has fallen to the
minimum mark or below, have the
brake system checked for brake pad
thickness and leaks immediately.
Notify an authorized Mercedes-Benz
Center immediately. Do not add brake
fluid as this will not solve the problem.
For more information, see “Practical
hints” (
page 275).

253 Operation
Engine compartment
Closing
Let the hood drop from a height of
approximately 1 ft (30 cm).
The hood will lock audibly.

Check to make sure the hood is fully
closed.
If you can raise the hood at a point
above the headlamps, then it is not
properly closed. Open it again and let it
drop with somewhat greater force.
Warning!
G
If you see flames or smoke coming from the
engine compartment, or if the coolant tem-
perature display indicates that the engine is
overheated, do not open the hood. Move
away from vehicle and do not open the hood
until the engine has cooled. If necessary,
call the fire department.
Warning!
G
The engine is equipped with a transistorized
ignition system. Because of the high voltage
it is dangerous to touch any components
(ignition coils, spark plug sockets, diagnos-
tic socket) of the ignition system

with the engine running


while starting the engine


if ignition is “on” and the engine is
turned manually
Warning!
G
Be careful that you do not close the hood on
anyone.

254 OperationEngine compartmentEngine oil
The amount of oil your engine needs will
depend on a number of factors, including
driving style. Higher oil consumption can
occur when

the vehicle is new


the vehicle is driven frequently at
higher engine speeds
Engine oil consumption checks should only
be made after the vehicle break-in period.Checking engine oil level with the
control system
When checking the oil level the vehicle
must


be parked on level ground


be at normal operating temperature


have been stationary for at least five
minutes with the engine turned off
To check the engine oil level via the
multifunction display, do the following:

Turn the SmartKey in the starter switch
to position2.
The standard display (
page 111) should
appear in the multifunction display.

Press buttonk orj on the
steering wheel until the following
message is seen in the multifunction
display:ENGINE OIL LEVEL
MEASURING NOW
MEASURE. CORRECT
ONLY IF VEH. LEVEL
One of the following messages will
subsequently appear in the indicator:

ENGINE OIL LEVEL
OK


ADD 1.0 Qt. TO
REACH MAX. OIL LEVEL!(Canada:
1.0 LITER
)


ADD 1.5 Qts. TO
REACH MAX. OIL LEVEL!(Canada:
1.5 LITERS
)


ADD 2.0 Qts. TO
REACH MAX. OIL LEVEL!(Canada:
2.0 LITERS
)
iDo not use any special lubricant addi-
tives, as these may damage the drive
assemblies. Using special additives not
approved by Mercedes-Benz will
restrict your warranty entitlement.
More information on this subject is
available at any Mercedes-Benz
Center.