maintenance MERCEDES-BENZ C320S 2004 W203 User Guide

266 OperationMaintenanceThe Mercedes-Benz Center will reset the
service indicator following a completed
service.Calling up the service indicator
Switch on ignition.
The standard display of the control
system appears (
page 113).

Press buttonk orj on the mul-
tifunction steering wheel until the FSS
indicator appears in the multifunction
display.
Resetting the service indicator
In the event that the service on your
vehicle is not carried out by an authorized
Mercedes-Benz Center, you can reset the
service indicator yourself.
Switch on ignition.
The standard display of the control
system appears (
page 113).

Press buttonk orj on the mul-
tifunction steering wheel until the FSS
indicator appears in the multifunction
display.

Press reset button for about three
seconds.
This message appears in the multifunc-
tion display:SERVICE INTERVAL?
RESET WITH R BUTTON FOR 3 SEC.

To confirm, press reset button until you
hear a signal.
The service indicator now displays the
reset interval.
iIf the battery is disconnected, the days
of disconnection will not be included in
the count shown by the service indica-
tor. To arrive at the true service
deadline, you will need to subtract
these days from the days shown in the
service indicator.
Do not confuse the service indicator
with the engine oil level indicator:.
iIf the service indicator was
inadvertently reset, have a
Mercedes-Benz Center correct it.
Only reset if the proper service has
been performed. Resetting the system
without performing proper service as
called for by the FSS will cause the FSS
to incorrectly determine the next
service interval which will result in
engine damage not covered by the
Mercedes-Benz Limited Warranty.

319 Practical hints
Flat tire
The jack take-up brackets are located
directly behind the front wheel housings
and in front of the rear wheel housings.
1Jack
2Take-up bracket
Place jack1 on firm ground.

Position jack1 under take-up
bracket2 so that it is always vertical
(plumb-line) as seen from the side,
even if the vehicle is parked on an
incline.

Jack up the vehicle until the wheel is a
maximum of 1.2 in (3 cm) from the
ground. Never start engine while
vehicle is raised.Removing the wheel
1Alignment bolt

Unscrew upper-most wheel bolt and
remove.

Replace this wheel bolt with alignment
bolt1 supplied in the tool kit.

Remove the remaining bolts.

Remove the wheel.
Warning!
G
The jack is intended only for lifting the
vehicle briefly for wheel changes. It is not
suited for performing maintenance work
under the vehicle.

Never start the engine when the vehicle
is raised.


Never lie down under the raised vehicle.
!Do not place wheel bolts in sand or dirt.
This could result in damage to the bolts
and wheel hub threads.

355 Technical data
Fuels, coolants, lubricants, etc.
When switching fuels, make sure:

Fuel level is below half full.


Fuel level is above reserve (fuel reserve
warning lamp is not lit).


Amount of added fuel is more than
5 gallons (20 liters).


Ignition is off during refill.


Immediately after refueling engine is
started and operated for at least five
minutes.
These precautions and recommendations
are supposed to prevent any difficulties
when starting and operating the engine
which otherwise may be experienced
before the engine has fully adapted to the
different fuel.
If in spite of these recommendations the
engine does not perform properly, adding
more gasoline [at least 3 gallons
(12 liters)] to the fuel may improve the
engine behavior.Cold weather performance
It is possible that starting times will signif-
icantly increase at temperatures
below 32°F (0°C). At low temperatures
the use of a block heater (Canada only) is
recommended (see your authorized
Mercedes-Benz Center for further
information). Rough idling may also be
experienced at such temperatures before
the engine is fully warmed up.
Hot weather performance
At ambient temperatures above 95°F
(35°C) start times may increase and be
accompanied by a rough idle following the
start.Cruising range
E85 fuel contains less energy per gallon
than gasoline. To ensure that engine per-
formance with Ethanol fuel is similar to
that when using gasoline, the engine must
burn more Ethanol fuel. As a result, it is to
be expected that the fuel consumption will
increase when using E85 compared to
gasoline operation.
Maintenance
Please inform your Mercedes-Benz Center
if you use or have used E85 fuel when your
vehicle is delivered for maintenance or
repairs.
!E85 fuel is unsuitable for use when
ambient temperatures fall below 14°F
(-10°C).
iUse of E85 may reduce your driving
range.

362 Technical termsCOMAND*
(C
ockpit M
anagement and D
ata
System)
Information and operating center for
vehicle sound and communications
systems, including the radio and the
navigation system, as well as other
optional equipment (CD changer*,
telephone*, etc.).
Control system
The control system is used to call up
vehicle information and to change
component settings. Information and
messages appear in the multifunction
display. The driver uses the buttons on
the multifunction steering wheel to
navigate through the system and to
adjust settings.
Cruise control
Driving convenience system for
automatically maintaining the vehicle
speed set by the driver.Engine number
The number set by the manufacturer
and placed on the cylinder block to
uniquely identify each engine
produced.
Engine oil viscosity
Measurement for the inner friction
(viscosity) of the oil at different temper-
atures. The higher the temperature an
oil can tolerate without becoming thin,
or the lower the temperature it can
tolerate without becoming viscous, the
better the viscosity.
ESP
(E
lectronic S
tability P
rogram)
Improves vehicle handling and
directional stability.
ETD
(E
mergency T
ensioning D
evice)
Device which deploys in certain frontal
and rear collisions exceeding the
system's threshold to tighten the
seat belts.
->SRSFSS
(F
lexible S
ervice S
ystem)
Service indicator in the multifunction
display that informs the driver when
the next vehicle maintenance service
is due.
Gear range
Number of gears which are available to
the automatic transmission for shifting.
The automatic gear shifting process
can be adapted to specific operating
conditions using the gear selector
lever.
GPS
(G
lobal P
ositioning S
ystem)
Satellite-based system for relaying
geographic location information to and
from vehicles equipped with special
receivers. Employs CD digital maps for
navigation.

382 IndexLighting 102
Automatic headlamp mode 103
Combination switch 105
Daytime running lamp mode 104
Door entry lamps 108
Exterior lamp switch 102
Front fog lamps 105
High beams 106
Instrument cluster illumination 109
Instruments 109
Interior 107
Locator lighting 104
Low beam 102
Manual headlamp mode 103
Night security illumination 104
Parking lamps 102
Rear fog lamp 105
Settings (control system) 129
Trunk lamp 108
Limiting the gear range 144
Limp Home Mode 147Loading 209
Instructions 214
Roof rack* 209
Ski sack* 209
Split rear bench seat* 212
Locator lighting 104
Setting 130
Lock button 363
Locking 50, 82
Automatic while driving 90
Centrally from inside 91
Fuel filler flap 249
Global, SmartKey 83
Separately the trunk 89
Vehicle in an emergency 306
Loss of keys 85
Loss of Service and
Warranty Information Booklet 337
Low beam headlamps
Messages in display 295
Replacing bulbs 310, 312
Lowering
Vehicle 321Lubricants
Technical data 349
M
Main dimensions 347
Maintenance 12, 265
Vehicles with E85 fuel 355
Malfunction
Displaying 122
Malfunction memory 122
Calling up 122
Clearing 122
Manual headlamp mode 103
Manual operations
Fuel filler flap 308
Interior lighting control 107
Locking the trunk 89
Locking the vehicle 306
Sliding/pop-up roof* 309
Unlocking the driver’s door 305
Unlocking the trunk 90, 306
Unlocking transmission
gear selector lever 308

389 Index
Seat cushion depth
Adjusting 97
Seat heating*
Switching off 98
Switching on 98
Seats 92
Adjusting 32
Easy entry/exit feature* 92
Heating* 98
Manual seat 33
Multicontour seat* 97
Power seat* 35
Split rear bench seat* 212
Selecting
Display 129
Selector lever see gear selector lever
Self-test
BabySmart
TM
airbag deactivation system 66
Tele Aid* 224Service
Calling up the service indicator 266
Major service (Service B) 265
Minor service (Service A) 265
Overdue 265
Spare parts 336
Types 265
When due 265
Service and Warranty Booklet
Loss of 337
Service and warranty information 10
Service indicator 265
Calling up 266
Clearing 265, 266
Service life (tires) 261
Service see Maintenance
Service System see FSSSetting
Convenience functions 125, 133
Cruise control 207
Daytime running lamp mode 129
Higher speed in cruise control 208
Hours (clock) 126
Individual vehicle settings 123
Instrument lighting 109
Interior lighting delayed shut-off 132
Key dependent memory 135
Lamps and lighting
(control system) 129
Language, multifunction display 128
Locator lighting 130
Lower speed in cruise control 208
Miles/kilometers in
speedometer 128
Minutes (clock) 126
Night security illumination 131
Parking position* for exterior
rear view mirrors 136
Speed in cruise control 208