oil temperature 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

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

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.

321 Practical hints
What to do if …
When the message
At next gas station
add 1.0 qt engine oil
(Canada:
1.0 l
)
appears while the engine is running and at
operating temperature, the engine oil level
has dropped to approximately the mini-
mum 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 specified in the Factory
Approved Service Products pamphlet.
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 280) and add oil as required
(page 281).

If you must add engine oil frequently,
have the engine checked for possible
leaks.
Oil sensor malfunction
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.

388 Technical dataFuels, coolants, lubricants, etc.
Model
Capacity
Fuels, coolants, lubricants, etc.
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
C 230 Kompressor (all models)
C240 (all models)
C320 (all models)
C55AMG
approx. 5.9 US qt (5.6 l)
approx. 6.8 US qt (6.4 l)
approx. 6.8 US qt (6.4 l)
approx. 12.8 US qt (12.0 l)
MB 325.0 Anticorrosion/antifreeze agent
Fuel tank
including
a reserve of
16.4 US gal (62.0 l)
2.1 US gal (8.0 l)
Premium unleaded gasoline:
Minimum Posted Octane 91
(Avg. of 96 RON/86 MON)Flexible Fuel Vehicle (identified by a label
reading Premium gasoline or E85 only! on
fuel filler flap):
Alternative fuel: Ethanol fuel (E85)

389 Technical data
Fuels, coolants, lubricants, etc.
Model
Capacity
Fuels, coolants, lubricants, etc.
Air conditioning system
R-134a refrigerant and special PAG lubricant oil
(never R-12)
Windshield washer
3.2 US qt (3.0 l)
MB Windshield Washer Concentrate
1
Windshield washer and
headlamp cleaning system*
6.4 US qt (6.0 l)
1Use MB Windshield Washer Concentrate “S” and water for temperatures above freezing point or MB Windshield Washer Concentrate “S” and commercially available
premixed windshield washer solvent/antifreeze for temperatures below freezing point. Follow suggested mixing ratios (page 396).

394 Technical dataFuels, coolants, lubricants, etc.Coolants
The engine coolant is a mixture of water
and anticorrosion/antifreeze, which
provides:

Corrosion protection


Freeze protection


Boiling protection (by increasing the
boiling point)
The cooling system was filled at the factory
with a coolant providing freeze protection
to approximately -22°F (-30°C) and
corrosion protection.
If the antifreeze mixture is effective
to -22°F (-30°C), the boiling point of the
coolant in the pressurized cooling system
is reached at approx. 266°F (130°C).The coolant solution must be used
year-round to provide the necessary corro-
sion protection and increase boil-over
protection. Refer to Maintenance Booklet
for replacement interval.
Coolant system design and coolant used
determine the replacement interval. The
replacement interval published in the
Maintenance Booklet is only applicable
if MB 325.0 anticorrosion/antifreeze
solution or other Mercedes-Benz approved
products of equal specification (see
Factory Approved Service Products
pamphlet) are used to renew the coolant
concentration or bring it back up to the
proper level.
To provide important corrosion protection,
the solution must be at least 45%
anticorrosion/antifreeze [equivalent to
freeze protection to approx. -22°F
(-30°C)]. If you use a solution that is more than 55%
anticorrosion/antifreeze [freeze
protection to approx. -49°F (-45°C)], the
engine temperature will increase due to
the lower heat transfer capability of the
solution. Therefore, do not use more than
this amount of anticorrosion/antifreeze.
If the coolant level is low, water and
MB 325.0 anticorrosion/antifreeze should
be used to bring it up to the proper level
(have cooling system checked for signs of
leakage). Please make sure the mixture is
in accordance with label instructions.
The water in the cooling system must meet
minimum requirements, which are usually
satisfied by normal drinking water. If you
are not sure about the water quality,
consult an authorized Mercedes-Benz
Center.

400 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 that
automatically maintains 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 (Canada vehicles)
(F
lexible S
ervice S
ystem)
Maintenance service indicator in the
multifunction display that informs the
driver when the next vehicle mainte-
nance service is due. FSS evaluates
engine temperature, oil level, vehicle
speed, engine speed, distance driven
and the time elapsed since your last
maintenance service, and calls for the
next maintenance service accordingly.
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.

431 Index
Technical data
Air conditioning refrigerant 390
Brake fluid 390
Coolant 387, 388
Coolants 394
Electrical system 384
Engine 378
Engine oil additives 390
Engine oils 390
Flexible fuel vehicles 392
Fuel requirements 391
Fuels 387, 388
Gasoline additives 392
Lubricants 387
Main dimensions 385
Premium unleaded gasoline 391
Rims and tires 380
Weights 386
Windshield washer 389
Windshield washer and headlamp
cleaning* system 389, 396Tele Aid* 248
Emergency calls 250
Hands-free microphone 29
Information 253
Initiating an emergency
call manually 251
Message in display 328
Remote door unlock 255
Roadside Assistance 252
SOS button 251
Stolen Vehicle Recovery
services 256
System self-check 249
Tele Aid System 249, 403
Upgrade scenario 254
Telematics* 403
Telephone* 26, 247
Answering a call 151
Dialing a number from
the phone book 152
Ending a call 152
Hands-free microphone 29Loading phone book 152
Message in display 328
Operation 150, 208
Redialing 153
Temperature
Display mode 135
Grades of tires 398
Setting interior temperature 177
Setting units in display 135
Tires 288
Tie-down rings* (Trunk) 240
Tightening torque
(Wheel bolts) 359, 403
Tilt
Head restraint, manual seat 37
Head restraint, power seat* 39
Tilt/sliding sunroof*
Closing 227, 341
Closing with SmartKey 229
Messages in display 328
Opening 227, 341
Opening with SmartKey 229
Stopping 229
Synchronizing 230