2003 MERCEDES-BENZ C320 4MATIC maintenance

248 OperationMaintenanceCalling up the service indicator
Switch ignition on.
The standard display of the control sys-
tem appears (
page 116).

Press button
k
or
j
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 vehi-
cle is not carried out by an authorized
Mercedes-Benz Center, you can reset the
service indicator yourself.
Switch ignition on.
The standard display of the control sys-
tem appears (
page 116).

Press button
k
or
j
on the mul-
tifunction steering wheel until the FSS
indicator appears in the multifunction
display.

Press the reset knob for about four
seconds.
This message appears in the tachome-
ter:DO YOU WANT TO RESET SERVICE INTER-
VAL? CONFIRM BY PRESSING RESET (R)
BUTTON

To confirm, hold down the reset knob
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 dead-
line, you will need to subtract these
days from the days shown in the ser-
vice indicator.
Do not confuse the service indicator
with the engine oil level indicator
:
.
iIf the service indicator was inadvertent-
ly 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.

316 Technical dataSpare parts serviceThe “Technical data” section provides the
necessary technical data for your vehicle.
Spare parts serviceAll authorized Mercedes-Benz Centers
maintain a stock of original spare parts re-
quired for maintenance and repair work. In
addition, strategically located parts distri-
bution centers provide quick and reliable
parts service.
More than 300 000 different spare parts
for Mercedes-Benz models are available.
Mercedes-Benz original spare parts are
subject to stringent quality inspections.
Each part has been specifically developed,
manufactured or selected for and adapted
to Mercedes-Benz vehicles.
Therefore, Mercedes-Benz original spare
parts should be installed.
!The use of non-genuine parts and
accessories not authorized by
Mercedes-Benz could damage the
vehicle, which is not covered by the
Mercedes-Benz Limited Warranty, or
could compromise the vehicle’s dura-
bility or safety.

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

Fuel level is below half full.


Fuel level is above reserve (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 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 gas-
oline 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 am-
bient temperatures fall below 14°F
(-10°C).
iUse of E85 may reduce your driving
range.

342 Technical termsCOMAND*
(C
ockpit M
anagement and D
ata
System)
Information and operating center for
vehicle sound and communications
systems, including the radio and navi-
gation system, as well as for 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 ad-
just settings.
Cruise control
Driving convenience system for auto-
matically 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 pro-
duced.
Engine oil viscosity
Measurement for the inner friction (vis-
cosity) of the oil at different tempera-
tures. The higher the temperature an
oil can tolerate without becoming thin,
or the lower the temperature it can tol-
erate without becoming viscous, the
better the viscosity.
ESP
(E
lectronic S
tability Pr
ogram)
Improves vehicle handling and direc-
tional stability.
ETD
(E
mergency T
ensioning D
evice)
Device which deploys in certain frontal
and rear collisions exceeding the sys-
tem'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 selector lever.
GPS
(G
lobal P
ositioning S
ystem)
Satellite-based system for relaying
geographic location information to and
from vehicles equipped with special re-
ceivers. Employs CD digital maps for
navigation.
Instrument cluster
The displays and indicator/warning
lamps in the driver’s field of vision, in-
cluding the tachometer, speedometer
and fuel gauge.

358 Index
Exterior lamp switch 101
Front fog lamps 103
High beams 104
Instrument cluster illumination 107
Instruments 107, 108
Interior 105
Locator lighting 103
Low beam 101
Manual headlamp mode 102
Night security illumination 103
Parking lamps 101
Rear fog lamp 103
Settings (control system) 125
Trunk lamp 106
Limiting the gear range 140
Limp Home Mode 143
Loading 196
Instructions 202
Roof rack* 196
Ski sack* 196
Split rear bench seat* 199
Locator lighting 103
Setting 126
Lock button 343Locking 51, 84
Automatic while driving 91
Centrally from inside 92
Fuel filler flap 233
Global, SmartKey 85
Separately the trunk 90
Vehicle in an emergency 286
Loss of keys 87
Loss of Service and Warranty
Information Booklet 317
Low beam headlamps
Messages in display 272
Replacing bulbs 290, 292
Lowering
Vehicle 301
Lubricants
Technical data 329
M
Main dimensions 327
Maintenance 12, 247
Vehicles with E85 fuel 335
Malfunction
Displaying 119
Malfunction memory 118
Calling up 118
Clearing 119Manual headlamp mode 102
Manual operations
Fuel filler flap 287
Interior lighting control 105
Locking the trunk 90
Locking the vehicle 286
Sliding/pop-up roof* 289
Unlocking the driver’s door 285
Unlocking the trunk 91
Unlocking transmission
selector lever 288
Manual seat
Adjusting 33
Adjusting backrest tilt 33
Adjusting head restraint height 33
Adjusting head restraint tilt 34
Adjusting seat cushion tilt 33
Adjusting seat height 33
Front seat head restraints 94
Seat fore and aft adjustment 33
Manual transmission 137
Shifting into reverse 137
Starting with 44
MAXCOOL Maximum cooling 160
MB Tex upholstery
Cleaning 253

364 IndexSelector lever 23
Lock 44
Position
(automatic transmission) 23, 138
Self-test
BabySmart
TM airbag deactivation
system 67
Tele Aid* 210
Service
Calling up the service indicator 248
Major service (Service B) 247
Minor service (Service A) 247
Overdue 247
Spare parts 316
Types 247
When due 247
Service and Warranty Booklet
Loss of 317
Service and warranty information 10
Service indicator 247
Calling up 248
Clearing 247, 248
Service life (tires) 243
Service see maintenance 247
Service System see FSS 247Setting
Convenience functions 121, 129
Cruise control 194
Daytime running lamp mode 125
Higher speed in cruise control 195
Hours (clock) 122
Individual vehicle settings 119
Instrument lighting 107, 108
Interior lighting delayed shut-off 127
Key dependent memory 131
Lamps and lighting
(control system) 125
Language, multifunction display 124
Locator lighting 126
Lower speed in cruise control 195
Miles/kilometers in
speedometer 123
Minutes (clock) 122
Night security illumination 126
Parking position* for exterior rear
view mirrors 131
Slower speed in cruise control 195
Speed in cruise control 195
Speedometer display mode 123
Station selection mode 128
Temperature (Interior) 158Temperature (interior) 150
Temperature indicator 123
Time display mode (Clock) 123
Units
Speedometer 123
Temperature 123
Settings
Convenience functions 129
Factory, SmartKey 85
Individual (SmartKey) 131
Lighting (control system) 125
Menus and submenus 113
Resetting all (control system) 120
Resetting in the submenu 120
Selective 85
Settings menu
Functions in 119
Individual vehicle settings 119
Submenus 120
Shift lock 344
Shifting
Gear selector lever positions 141
Gearshift lever 137
Into optimal gear range
(automatic transmission) 139