engine oil MERCEDES-BENZ C230 2007 W203 Owner's Manual

Contents
Power tilt/sliding sunroof* ................ 224
Opening and closing
the power tilt/sliding sunroof ...... 224
Synchronizing
the power tilt/sliding sunroof ...... 226
Driving systems ................................. 227
Cruise control............................... 227
Loading .............................................. 230
Roof rack* .................................... 230
Ski sack* (Canada only) ............... 230
Split rear bench seat* .................. 233
Loading instructions ..................... 235
Cargo tie-down rings* .................. 236
Useful features .................................. 237
Storage compartments................. 237
Cup holders .................................. 239
Ashtrays ....................................... 241
Cigarette lighter ........................... 242
Power outlet ................................. 243
Telephone*................................... 244
Tele Aid* ...................................... 247
Garage door opener* ................... 253
Operation......................................... 259
The first 1 000 miles (1 500 km)......... 260
Driving instructions............................ 261
Drive sensibly – save fuel ............. 261
Drinking and driving ..................... 261
Pedals .......................................... 261
Power assistance ......................... 262
Brakes .......................................... 262
Driving off .................................... 263
Parking ......................................... 264
Tires ............................................. 264
Hydroplaning ................................ 265
Tire traction.................................. 265
Tire speed rating .......................... 266
Winter driving instructions ........... 267
Standing water ............................. 268
Passenger compartment .............. 268
Driving abroad.............................. 268
Control and operation
of radio transmitters .................... 268
Catalytic converter ....................... 269
Emission control .......................... 270
Coolant temperature .................... 270At the gas station .............................. 271
Refueling ...................................... 271
Check regularly
and before a long trip................... 273
Engine compartment ......................... 274
Hood ............................................ 274
Engine oil ..................................... 276
Transmission fluid level................ 277
Coolant level ................................ 278
Battery ......................................... 279
Windshield washer system
and headlamp cleaning system* .. 280
Tires and wheels................................ 281
Important guidelines .................... 281
Tire care and maintenance........... 282
Direction of rotation..................... 284
Loading the vehicle ...................... 284
Recommended
tire inflation pressure ................... 289
Checking tire inflation pressure ... 290
MOExtended system* .................. 294
Tire labeling ................................. 295
Load identification ....................... 299
DOT, Tire Identification Number
(TIN) ............................................. 299
Maximum tire load ....................... 301

Contents
Technical data.................................. 395
Parts service ...................................... 396
Warranty coverage ............................. 397
Loss of Service and Warranty
Information Booklet...................... 397
Identification labels............................ 398
Layout of poly-V-belt drive ................. 400
Engine ................................................ 401
Rims and Tires ................................... 403
Same size tires ............................. 404
Mixed size tires ............................ 405
Minispare wheel ........................... 406
Electrical system................................ 407
Main dimensions and weights............ 408
Main dimensions .......................... 408
Weights ........................................ 408Fuels, coolants, lubricants, etc. ......... 409
Capacities .................................... 409
Engine oils.................................... 412
Engine oil additives ...................... 412
Air conditioning refrigerant .......... 412
Brake fluid .................................... 412
Premium unleaded gasoline ......... 413
Gasoline additives ........................ 413
Fuel requirements ........................ 414
Flexible Fuel Vehicles
(C 230/C 230 Sport only) ............ 414
Coolants....................................... 416
Windshield washer and
headlamp cleaning system* ......... 418Index................................................. 419

273 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 278) and see
“Fuels, coolants, lubricants, etc.”
(
page 409).
Brake fluid
Removing fuse box cover (
page 392).Windshield washer and headlamp
cleaning system*
For more information on filling up the
washer reservoir, see “Windshield washer
system and headlamp cleaning system*”
(
page 280).
Engine oil level
For more information on engine oil level,
see “Engine oil” (
page 276).
Vehicle lighting
Check function and cleanliness. For more
information on replacing light bulbs, see
“Replacing bulbs” (
page 367).
Exterior lamp switch (
page 109).
Tire inflation pressure
More information on tire inflation pressure
(
page 290).
iOpening the hood, see (page 274).
!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 324).

274 Operation
Engine compartment
Hood
Opening
Warning!G
Do not pull the release lever while the
vehicle is in motion. Otherwise the hood
could be forced open by passing air flow.
This could cause the hood to come loose
and injure you and/or others.
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
You could be injured when the hood is open
- even when the engine is turned off.
Parts of the engine can become very hot. To
prevent burns, only touch owner serviceable
components described in the Operator’s
Manual and comply with all relevant safety
precautions.
Warning!G
To help prevent personal injury, stay clear of
moving parts when the hood is open and the
engine is running.
The radiator fan may continue to run for
approximately 30 seconds or even restart
after the engine has been turned off. Stay
clear of fan blades.
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

276 Operation
Engine compartment
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.
Checking engine oil level
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 sta-
tionary for at least 5 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
1Oil dipstick
2Upper (max) mark
3Lower (min) mark
To check the engine oil level with the oil
dipstick, do the following:
Open the hood (page 274).
Pull out oil dipstick1.
Wipe oil dipstick1 clean.
Fully insert oil dipstick1 into the
dipstick guide tube.
Pull out oil dipstick1 again after
approximately 3 seconds to obtain ac-
curate reading.
The oil level is correct when it is be-
tween the lower (min) mark3 and
upper (max) mark2 of oil dipstick1.
If necessary, add engine oil.
For adding engine oil, see “Adding en-
gine oil” (
page 277).
For more information on engine oil, see
“Fuels, coolants, lubricants, etc.”
(
page 409).
iDo not use any special lubricant additives,
as these may damage the drive assemblies. Us-
ing special additives not approved by
Mercedes-Benz may cause damage not covered
by the Mercedes-Benz Limited Warranty. More
information on this subject is available at any
Mercedes-Benz Center.iThe filling quantity between the upper and
lower marks on the oil dipstick is approximately
2.1 US qt. (2.0 l).

277 Operation
Engine compartment
For more information on messages in the
multifunction display concerning engine
oil, see the “Practical hints” section
(
page 348).
Adding engine oil
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.
For more information on engine oil, see the
“Technical data” section (
page 409) and
(
page 412).
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.
!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 or
emission control system damage not covered by
the Mercedes-Benz Limited Warranty.
!Excess oil must be siphoned or drained off.
It could cause damage to the engine and emis-
sion control system not covered by the
Mercedes-Benz Limited Warranty.

311 Operation
Maintenance
Clearing the maintenance service
indicator message
The maintenance service indicator is
automatically cleared

after approximately 10 seconds when
you switch on the ignition or when
reaching the maintenance service
threshold while driving

after approximately 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.
The maintenance service indicator
message is cleared and the standard
display appears in the multifunction
display (
page 126).
iVehicles equipped with Maintenance
System (U.S. vehicles. Canada vehicles, depend-
ing on vehicle production date):
The Maintenance System in your vehicle tracks
distance driven and the time elapsed since your
last maintenance service and calculates other
maintenance service work required.
iVehicles equipped with FSS (Flexible Service
S
ystem) only (Canada vehicles, depending on ve-
hicle production date):

FSS evaluates engine temperature, oil level,
vehicle speed, engine speed, distance driven
and the time elapsed since your last service
and calculates other maintenance service
work required.

The interval between maintenance services
depends on your driving habits. A gentle
driving style, moderate engine speeds and
the avoidance of short-distance trips will
lengthen the interval between services.

312 Operation
Maintenance
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 XXXX miles(km)
Service A exceeded by XXX Days
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 display
Switch on the ignition (page 32).
Press buttonè orÿ on the mul-
tifunction steering wheel repeatedly
until the standard display appears in
the multifunction display (
page 121).
Press buttonk orj until the
maintenance service indicator display
with the service symbol9 or½
and the service deadline appears in the
multifunction display.Resetting the maintenance service
indicator
In the event that the maintenance service
on your vehicle is not carried out by an
authorized Mercedes-Benz Center, you can
have the maintenance service indicator
reset. The automotive maintenance facility
carrying out the maintenance service will
find the information for resetting the
maintenance service indicator in the
maintenance-relevant information for your
vehicle. Such information is available from
either your authorized Mercedes-Benz
Center or directly from Mercedes-Benz.
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
message or maintenance service indicator dis-
play.
Do not confuse the maintenance service indica-
tor with the engine oil level indicatorN.
iIf the maintenance service indicator was in-
advertently reset, have an authorized
Mercedes-Benz Center correct it.
Only reset if the proper maintenance service has
been performed. Resetting the system without
performing the proper service as called for by
the maintenance service indicator will result in
engine damage and/or other vehicle damage not
covered by the Mercedes-Benz Limited Warran-
ty.

348 Practical hints
What to do if …
When the message Check oil level at
next gas station
appears while the en-
gine is running and at operating tempera-
ture, 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 specified in the Factory
Approved Service Products pamphlet.
Display symbolDisplay messagePossible cause/consequencePossible solution
±Certain electronic systems are unable to
relay information to the control system.
The following systems may have failed:

Coolant temperature display

Tachometer

Cruise control display
Have the electronic systems checked
by an authorized Mercedes-Benz
Center.
:Check oil level
at next gas stationThe engine oil has dropped to a critical
level.Check the engine oil level
(
page 276) and add oil as required
(
page 277).
If you must add engine oil frequently,
have the engine checked for possible
leaks.
!The engine oil level warnings should not be
ignored. Extended driving with the symbol dis-
played could result in serious engine damage
that is not covered by the Mercedes-Benz Limit-
ed Warranty.

409 Technical data
Fuels, coolants, lubricants, etc.
Fuels, coolants, lubricants, etc.
Capacities
Vehicle components and their respective
lubricants must match. Therefore only use
products tested and approved by
Mercedes-Benz.
Please refer to the Factory Approved
Service Products pamphlet, or inquire at
your Mercedes-Benz Center.
Warning!G
Comply with all valid regulations with
respect to handling, storing, and disposing
of service fluids. Otherwise you could
endanger persons or the environment.
Keep service fluids out of the reach of
children.
For health reasons, you should prevent
service fluids from coming into direct
contact with your eyes or any open wounds.
If a service fluid is swallowed, contact a
physician immediately.
ModelCapacityFuels, coolants, lubricants, etc.
Engine with oil filter8.5 US qt (8.0 l)Approved engine oils
Automatic transmissionC 230 (all models)
C280
C 350 (all models)
C2804MATIC
C3504MATIC9.0 US qt (8.5 l)
9.0 US qt (8.5 l)
9.0 US qt (8.5 l)
8.3 US qt (7.8 l)
8.3 US qt (7.8 l)MB Automatic Transmission Fluid
Manual transmissionC 230 Sport
C 350 Sport1.3 US qt (1.2 l)
1.6 US qt (1.5 l)MB Manual Transmission Oil