Engine oil MERCEDES-BENZ C240 2005 W203 Owner's Manual

ContentsOperation......................................... 263
The first 1 000 miles (1 500 km) ......... 264
Driving instructions ............................ 265
Drive sensibly – save fuel ............. 265
Drinking and driving ..................... 265
Pedals .......................................... 265
Power assistance ......................... 265
Brakes .......................................... 266
Driving off..................................... 267
Parking ......................................... 267
Tires ............................................. 268
Hydroplaning ................................ 268
Tire traction .................................. 269
Tire speed rating .......................... 269
Winter driving instructions ........... 270
Standing water ............................. 271
Passenger compartment .............. 272
Driving abroad .............................. 272
Control and operation of radio
transmitters.................................. 272
Catalytic converter ....................... 273
Emission control........................... 273
Coolant temperature .................... 274At the gas station .............................. 275
Refueling ...................................... 275
Check regularly and before
a long trip ..................................... 277
Engine compartment ......................... 278
Hood ............................................ 278
Engine oil ..................................... 279
Transmission fluid level ................ 282
Coolant level ................................ 283
Battery ......................................... 284
Windshield washer system and
headlamp cleaning system* ......... 285
Tires and wheels ................................ 286
Important guidelines .................... 286
Life of tire..................................... 287
Direction of rotation ..................... 287
Checking tire inflation pressure ... 287
Rotating tires ............................... 289Winter driving .................................... 290
Winter tires .................................. 290
Block heater (Canada only) .......... 291
Snow chains................................. 291
Maintenance...................................... 292
Clearing the maintenance
service indicator .......................... 293
Maintenance service term
exceeded ..................................... 293
Calling up the maintenance
service indicator .......................... 293
Resetting the maintenance
service indicator .......................... 294
Vehicle care....................................... 295
Cleaning and care of the
vehicle ......................................... 295

ContentsTechnical data.................................. 373
Parts service ...................................... 374
Warranty coverage ............................. 375
Loss of Service and Warranty
Information Booklet...................... 375
Identification labels............................ 376
Layout of poly-V-belt drive ................. 377
C 230 Kompressor (all models) .... 377
C 240 (all models)/
C 320 (all models)/
C 55 AMG..................................... 377
Engine ................................................ 378
Rims and Tires ................................... 380
Same size tires ............................. 381
Mixed size tires ............................ 382
Minispare wheel ........................... 383
Collapsible tire
(C 55 AMG only) ........................... 383
Electrical system................................ 384
Main dimensions................................ 385
Weights .............................................. 386Fuels, coolants, lubricants, etc. ......... 387
Capacities .................................... 387
Engine oils.................................... 390
Engine oil additives ...................... 390
Air conditioning refrigerant .......... 390
Brake fluid .................................... 390
Premium unleaded gasoline ......... 391
Fuel requirements ........................ 391
Gasoline additives ........................ 392
Flexible Fuel Vehicles ................... 392
Coolants....................................... 394
Windshield washer and
headlamp cleaning system* ......... 396
Consumer information ....................... 397
Uniform tire quality grading ......... 397
Technical terms............................... 399Index................................................. 405

125 Controls in detail
Control system
Menus, submenus and functions
Menu1
Menu2
Menu3
Menu4
Menu5
Menu6
Menu7
Standard display
AUDIO
NAV*
Vehicle status
message memory
Settings
Trip computer
Telephone*
(page 126)
(page 127)
(page 130)
(page 130)
(page 132)
(page 148)
(page 150)
Commands/submenusDigital speedometer
or outside tempera-
ture
Select radio
station
Activate route
guidance
Call up vehicle mal-
function, warning
and system status
messages stored in
memory
Reset to factory
settings
Fuel consumption
statistics after
start
Load phone
book
Call up maintenance
service display
Select satellite
radio station*
(USA only)
Instrument clus-
ter submenu
Fuel consumption
statistics since
the last reset
Search for
name in
phone book
Check engine oil
level
Operate the
CD player*
Time/Date
submenu
Call up range
Lighting
submenuVehicle
submenuConvenience
submenu

126 Controls in detailControl system
Standard display menu
In the standard display, the main odometer
and the trip odometer are shown in the
multifunction display.
1Trip odometer
2Main odometerIf you see another display, press
buttonè orÿ repeatedly until the
standard display appears.
You can select the functions in the
standard display menu with buttonk
orj.
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
Display digital speedometer or
outside temperature
127
Calling up maintenance service
display
292
Checking engine oil level
280

277 Operation
At the gas station
Check regularly and before a long trip
1Coolant
2Brake fluid (fuse box cover removed)
3Windshield washer and headlamp
cleaning system*Coolant
For normal replenishing, use water (pota-
ble water quality). For more information,
see “Coolant level” (
page 283) and see
“Fuels, coolants, lubricants, etc.”
(
page 387).
Brake fluid
Removing fuse box cover (
page 370).Windshield washer and headlamp
cleaning system*
For more information on filling up the
washer reservoir, see “Windshield washer
system and headlamp cleaning system*”
(
page 285).
Engine oil level
For more information on engine oil level,
see “Engine oil” (
page 279).
Vehicle lighting
Check function and cleanliness. For more
information on replacing light bulbs, see
“Replacing bulbs” (page 344).
Exterior lamp switch (page 109).
Tire inflation pressure
More information on tire inflation pressure
(
page 287).
iOpening the hood, see (
page 278).
!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 303).

279 Operation
Engine compartment
Closing
Let the hood drop from a height of
approximately 1ft (30cm).
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.
Engine 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.
Warning!
G
If you see flames or smoke coming from the
engine compartment, or if the coolant tem-
perature gauge 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.
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.

280 OperationEngine compartmentChecking engine oil level with the
control system
When checking the oil level

the vehicle must be parked on level
ground


with the engine at operating tempera-
ture, the vehicle must have been
stationary for at least five minutes with
the engine turned off


with the engine not at operating tem-
perature yet, the vehicle must have
been stationary for at least 30 minutes
with the engine turned off
To check the engine oil level via the
multifunction display, do the following:

Switch on ignition (
page 33).
The standard display (
page 121) should
appear in the multifunction display.

Press buttonk orj on the
steering wheel until the following
message is seen in the multifunction
display:One of the following messages will
subsequently appear in the indicator:


Engine oil level
OK


Add 1.0 qt engine oil
for max. oil level(Canada:
1.0 l
)


Add 1.5 qts engine oil
for max. oil level(Canada:
1.5 l
)


Add 2.0 qts engine oil
for max. oil level(Canada:
2.0 l
)

If necessary, add engine oil.
For adding engine oil see (
page 281).
More information on engine oil can be
found in the “Technical data” section
(
page 387) and (
page 390).
Other display messages
If the SmartKey is not turned to position2
in the starter switch, the following
message will appear:
Switch ignition on to
check engine oil level
Switch on ignition (
page 33).
iIf you want to interrupt the checking
procedure, press thek orj
button on the multifunction steering
wheel.

281 Operation
Engine compartment
If you see the message:Observe waiting time
If engine is at operating temperature,
wait five minutes before repeating
check procedure.

If engine is not at operating tempera-
ture yet, wait 30 minutes before
repeating check procedure.
If you see the message:
Engine oil level
Not when engine on
Turn off the engine.

If the engine is at operating tempera-
ture, wait five minutes before checking
oil.

If the engine is not at operating temper-
ature yet, you must wait 30 minutes
before checking oil.If there is excess engine oil with the engine
at operating temperature, the following
message will appear:
Engine oil level
Reduce oil level
Have excess oil siphoned or drained
off. Contact an authorized
Mercedes-Benz Center.
More information on messages in the
display concerning engine oil can be found
in the “Practical hints” section
(
page 320) and (
page 321).Adding engine oil
!Excess oil must be siphoned or drained
off. It could cause damage to the
engine and catalytic converter not
covered by the Mercedes-Benz Limited
Warranty.
!Only use approved engine oils and oil
filters required for vehicles with
Maintenance System (U.S. vehicles) or
FSS (Canada vehicles). For a listing of
approved engine oils and oil filters,
refer to the Factory Approved Service
Products pamphlet in your vehicle
literature portfolio, or contact an
authorized Mercedes-Benz Center.
Using engine oils and oil filters of
specification other than those
expressly required for the Maintenance
System (U.S. vehicles) or FSS (Canada
vehicles), or changing of oil and oil filter
at change intervals longer than those
called for by the Maintenance System
(U.S. vehicles) or FSS (Canada
Vehicles) will result in engine damage
not covered by the Mercedes-Benz
Limited Warranty.

282 OperationEngine compartmentC 230 Kompressor (all models)1Filler cap
Unscrew filler cap1 from filler neck.

Add engine oil as required. Be careful
not to overfill with oil.
Be careful not to spill any oil when adding.
Avoid environmental damage caused by oil
entering the ground or water.

Screw filler cap1 back on filler neck.
C 240 (all models), C 320 (all models),
C55AMG1Filler cap
Unscrew filler cap1 from filler neck.

Add engine oil as required. Be careful
not to overfill with oil.Be careful not to spill any oil when adding.
Avoid environmental damage caused by oil
entering the ground or water.

Screw filler cap1 back on filler neck.
More information on engine oil can be
found in the “Technical data” section
(
page 387) and (
page 390).
Transmission fluid level
The transmission fluid level does not need
to be checked. If you notice transmission
fluid loss or gear shifting malfunctions,
have an authorized Mercedes-Benz Center
check the transmission.
!Excess oil must be siphoned or drained
off. It could cause damage to the
engine and catalytic converter not
covered by the Mercedes-Benz Limited
Warranty.
!Excess oil must be siphoned or drained
off. It could cause damage to the
engine and catalytic converter not
covered by the Mercedes-Benz Limited
Warranty.

293 Operation
Maintenance
Clearing the maintenance service indicator
The maintenance service indicator is
automatically cleared

after ten seconds when you switch on
the ignition or when reaching the main-
tenance service threshold while driving


after 30 seconds, once the suggested
maintenance service term has passed
You can also clear it yourself.
1Reset button

Press reset button1 on the
instrument cluster.
Maintenance service term exceeded
If you have exceeded the suggested
maintenance service term, you will see the
following message in the multifunction
display:Service A exceeded by XX Days
Service A exceeded by XX Miles
(Km)
In addition, a signal sounds when the
message appears.
Any authorized Mercedes-Benz Center will
reset the maintenance service indicator
following a completed maintenance
service.Calling up the maintenance service
indicator
Switch on ignition (
page 33).
The standard display of the control
system appears (
page 121).

Press buttonk orj on the
multifunction steering wheel until the
maintenance service indicator with the
service symbol9 or´ and the
service deadline appears in the
multifunction display.iIf the battery is disconnected, the days
of disconnection will not be included in
the count shown by the maintenance
service indicator. To arrive at the true
maintenance service deadline, you will
need to subtract these days from the
days shown in the maintenance service
indicator.
Do not confuse the maintenance
service indicator with the engine oil
level indicator:.