oil MERCEDES-BENZ C320 4MATIC WAGON 2004 S203 User Guide

261 Operation
Tires and wheels
Life of tire
The service life of a tire is dependent upon
varying factors including but not limited to:

Driving style


Tire pressure


Distance driven
Direction of rotation
Unidirectional tires offer added advan-
tages, such as better hydroplaning perfor-
mance. To benefit, however, you must
make sure the tires rotate in the direction
specified.
An arrow on the sidewall indicates the
intended direction of tire rotation.Checking tire inflation pressure
Correct the tire pressure only when tires
are cold.
Regularly check your tire pressure at
intervals of no more than 14 days. If the tires are warm you should only
correct the tire pressure if it is too low for
current operating conditions.
A table on the fuel filler flap lists the
specified tire inflation pressures for warm
and cold tires as well as for various
operating conditions.
Warning!
G
Tires and spare tire should be replaced after
six years, regardless of the remaining tread.!Keep unmounted tires in a cool, dry
place with as little exposure to light as
possible. Protect tires from contact
with oil, grease and gasoline.
Warning!
G
If the tire pressure drops repeatedly:

Check the tires for punctures from
foreign objects.


Check to see whether air is leaking from
the valves or from around the rim.
iThe pressures listed for light loads are
minimum values offering high driving
comfort.
Increased inflation pressures listed for
heavier loads may also be used for light
loads. These higher pressures produce
favorable handling characteristics. The
ride of the vehicle, however, will be
somewhat harder. Never exceed the
max. values or inflate tires below the
min. values listed in the fuel filler flap.

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 111).

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 111).

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

Press the 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.

267 Operation
Vehicle care
Vehicle care
Cleaning and care of the vehicle
While in operation, even while parked, your
vehicle is subjected to varying external
influences which, if gone unchecked, can
attack the paintwork as well as the under-
body and cause lasting damage.Such damage is caused not only by
extreme and varying climatic conditions,
but also by:


Air pollution


Road salt


Tar


Gravel and stone chipping
To avoid paint damage, you should
immediately remove:


Grease and oil


Fuel


Coolant


Brake fluid


Bird droppings


Insects


Tree resins, etc.
Frequent washing reduces and/or elimi-
nates the aggressiveness and potency of
the above adverse influences.More frequent washings are necessary to
deal with unfavorable conditions:


near the ocean


in industrial areas (smoke, exhaust
emissions)


during winter operation
You should check your vehicle from time to
time for stone chipping or other damage.
A n y d a m a g e s h o u l d b e r e p a i r e d a s s o o n a s
possible to prevent corrosion.
In doing so, do not neglect the underbody
of the vehicle. A prerequisite for a thor-
ough check is a washing of the underbody
followed by a thorough inspection. Dam-
aged areas need to be re-undercoated.
Your vehicle has been treated at the facto-
ry with a wax-base rustproofing in the body
cavities which will last for the lifetime of
the vehicle. Post-production treatment is
neither necessary nor recommended by
Mercedes-Benz because of the possibility
of incompatibility between materials used
in the production process and others
applied later.
Warning!
G
Many cleaning products can be hazardous.
Some are poisonous, others are flammable.
Always follow the instructions on the partic-
ular container. Always open your vehicle’s
doors or windows when cleaning the inside.
Never use fluids or solvents that are not
designed for cleaning your vehicle.

272 OperationVehicle careCloth upholstery
Clean with soft bristle brush, or use a
dry-shampoo cleaner in case of excessive
dirt.
MB Tex upholstery
Pour Mercedes-Benz approved Interior
Care onto soft lint-free cloth and apply
with light pressure.
Plastic and rubber parts
Do not use oil or wax on these parts.
Wood trims
Dampen cloth using water and use damp
cloth to clean wood trims in your vehicle.
Do not use solvents like tar remover or
wheel cleaner nor polishes or waxes as
these may be abrasive.

291 Practical hints
What to do if …
Display symbol
Display messages
Possible cause
Suggested solution
:
USA only:ADD 1.0 Qt. ENGINE OIL
WHEN NEXT REFUELING!Canada only:ADD 1.0 LITER ENG. OIL
WHEN NEXT REFUELING!
The engine oil level is too low.

Add engine oil (
page 256) and check
the engine oil level (
page 254).
ENGINE OIL LEVEL
STOP, ENGINE OFF!
There is no oil in the engine. There is a
danger of engine damage.

Carefully bring the vehicle to a halt as
soon as possible.

Turn off the engine.

Add engine oil (
page 256) and check
the engine oil level (
page 254).
ENGINE OIL LEVEL
REDUCE OIL LEVEL
You have added too much engine oil.
There is a risk of damaging the engine or
the catalytic converter.

Have oil siphoned or drained off.
Observe all legal requirements with
respect to its disposal.
ENGINE OIL
VISIT WORKSHOP!
It may be that there is water in the engine
oil.

Have the engine oil checked.

292 Practical hintsWhat to do if …When the message
ADD 1.0 Qt. ENGINE
OIL WHEN NEXT REFUELING!
(Canada:
1.0 LITER
) appears while the engine is
running and at operating temperature, the
engine oil level has dropped to
approximately the minimum level.When this occurs, the warning will first
come on intermittently and then stay on if
the oil level drops further.
Visually check for oil leaks. If no obvious oil
leaks are noted, drive to the nearest
service station where the engine oil should
be topped to the required level with an
approved oil.
Display symbol
Display messages
Possible cause
Suggested solution
:
ENGINE OIL LEVEL
VISIT WORKSHOP!
The engine oil has dropped to a critical
level.

Check the engine oil level
(page 254) and add oil as required
(page 256).

If you must add engine oil frequently,
have the engine checked for possible
leaks.
ENGINE OIL SENSOR
VISIT WORKSHOP!
The measuring system is malfunctioning.

Have the measuring system checked
by an authorized Mercedes-Benz
Center.!The engine oil level warnings should
not be ignored. Extended driving with
the symbol displayed could result in
serious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.

298 Practical hintsWhat to do if …Display symbol
Display message
Possible cause
Possible solution
_
STEERING WHEEL ADJ.
LOCK!
The steering column is not properly
locked.

Lock steering column (
page 37).
STEERING OIL
VISIT WORKSHOP!
The steering gear oil level is too low.
There is a danger of steering gear
damage.

Have the system checked by an
authorized Mercedes-Benz Center.
Warning!
G
If the level of steering gear oil in reservoir is
too low, the steering power assistance could
fail. Much greater effort will then be needed
to turn the steering wheel.
Do not add steering oil without checking the
steering system.
Do not drive the vehicle. Have the system
checked at your authorized Mercedes-Benz
Center as soon as possible.

311 Practical hints
Replacing bulbs
Rear lamps Notes on bulb replacement


Only use 12 volt bulbs of the same type
and with the specified watt rating.


Switch lights off before changing a bulb
to prevent short circuits.


Always use a clean lint-free cloth when
handling bulbs.


Your hands should be dry and free of oil
and grease.


If the newly installed bulb does not
come on, visit an authorized
Mercedes-Benz Center.


Have the LEDs and bulbs for the
following lamps replaced by an
authorized Mercedes-Benz Center:

Additional turn signals in the
exterior rear view mirrors


High mounted brake lamp


Xenon lamps


Front fog lamps
Lamp
Type
7
High mounted brake
lamp
LED
8
Brake lamp
P21W
9
Turn signal lamp
PY 21 W
a
Backup lamp
P21W
b
Tail, parking,
standing and side
marker lamp
P21/5W
c
License plate lamps
C5W
d
Rear fog lamp,
driver’s side
P21/4W
Warning!
G
Keep bulbs out of reach of children.
Bulbs and bulb sockets can be very hot.
Allow the lamp to cool down before
changing a bulb.
Halogen lamps contain pressurized gas.
A bulb can explode if you:

touch or move it when hot


drop the bulb


scratch the bulb
Wear eye and hand protection.
Because of high voltage in Xenon lamps, it is
dangerous to replace the bulb or repair the
lamp and its components. We recommend
that you have such work done by a qualified
technician.

321 Practical hints
Flat tire
Mounting the new wheel
1Wheel bolt for light alloy rims
2Wheel bolt for Minispare wheel or other
steel rims (located in vehicle tool kit)
Clean contact surfaces of wheel and
wheel hub.

Guide Minispare wheel onto alignment
bolt and push it on.

Insert wheel bolts and tighten them
slightly.
!Wheel bolts2 must be used when
mounting the Minispare wheel or other
steel rims. The use of any wheel bolts
other than wheel bolts2 for the
Minispare wheel or other steel rims will
physically damage the vehicle’s
brakes.
!To avoid paint damage, place wheel flat
against hub and hold it there while
installing first wheel bolt.Warning!
G
Always replace wheel bolts that are
damaged or rusted.
Never apply oil or grease to wheel bolts.
Damaged wheel hub threads should be
repaired immediately. Do not continue to
drive under these circumstances! Contact
an authorized Mercedes-Benz Center or call
Roadside Assistance.
Incorrect wheel bolts or improperly tight-
ened wheel bolts can cause the wheel to
come off. This could cause an accident.
Make sure to use the correct mounting
bolts.

346 Technical dataFuels, coolants, lubricants, etc.
Fuels, coolants, lubricants, etc.Capacities
Vehicle components and their respectivelubricants must match. Therefore only use
brands tested and approved by
Mercedes-Benz.Please refer to the Factory Approved
Service Products pamphlet, or inquire at
your Mercedes-Benz Center.
Model
Capacity
Fuels, coolants, lubricants, etc.
Engine with oil filter
C240
C320
C2404MATIC
C3204MATIC
7.9 US qt (7.5 l)
7.9 US qt (7.5 l)
7.4 US qt (7.0 l)
7.4 US qt (7.0 l)
Approved engine oils
Automatic transmission
8.5 US qt (8.0 l)
MB Automatic Transmission Oil
Rear axle
1.2 US qt (1.1 l)
Hypoid gear oil SAE 85 W 90
Front axle
C2404MATIC
C3204MATIC
0.5 US qt (0.46 l)
Hypoid gear oil SAE 85 W 90
Transfer case
C2404MATIC
C3204MATIC
approx. 0.62 US qt (0.59 l)
MB Transfer case fluid
Power steering
approx. 1.1 US qt (1.0 l)
MB Power Steering Fluid (Pentosin CHF 11S)
Front wheel hubs
approx. 2.1 oz (60 g) each
High temperature roller bearing grease
Brake system
0.5 US qt (0.5 l)
MB Brake Fluid (DOT 4+)
Cooling system
approx. 6.8 US qt (6.4 l)
MB 325.0 Anticorrosion/Antifreeze Agent