2008 MERCEDES-BENZ C300 Transmission

456 Practical hints
Fuses
The electrical fuses in your vehicle serve to
switch off malfunctioning power circuits.
If a fuse is blown, the component(s) and
systems secured by that fuse will stop op-
erating.If a newly inserted fuse blows again, have
the cause determined and rectified at an
authorized Mercedes-Benz Center.
A fuse chart explains the fuse allocation
and fuse amperages. It is located in the
main fuse box in the passenger compart-
ment (
page 457).
The electrical fuses are located in different
fuse boxes:

Fuse box in passenger compartment
(
page 457)

Fuse box in engine compartment
(
page 457)

Fuse box in trunk (page 458)Before replacing fuses:
Depress the parking brake
(
page 134).
Make sure the manual transmission is
in Neutral (
page 136), automatic
transmission* is set to P (
page 140).
The gear position indicator in the ta-
chometer display should be on P.
Turn off all electrical consumers.
Turn off the engine (page 134).
Remove the SmartKey from the starter
switch.
Vehicles with KEYLESS-GO*
(Canada only):
Open the driver’s door.
Warning!G
Only use fuses approved by Mercedes-Benz
with the specified amperage for the system
in question and do not attempt to repair or
bridge a blown fuse. Using other than ap-
proved fuses or using repaired or bridged
fuses may cause an overload leading to a
fire, and/or cause damage to electrical
components and/or systems. Have the
cause determined and remedied at an au-
thorized Mercedes-Benz Center.
iA blown fuse must be replaced by an appro-
priate spare fuse (recognizable by its color or the
fuse rating given on the fuse) of the amperage
recommended in the fuse chart.
Any Mercedes-Benz Center will be glad to advise
you on this subject.
!Switch off the vehicle’s internal electrical
functions (
page 448) when you are working on
the fuses.
iIn case of a blown fuse contact Roadside
Assistance or an authorized Mercedes-Benz
Center.

476 Technical data
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 (USA only), or
inquire at an authorized Mercedes-Benz
Center.
Warning!G
Comply with all valid regulations with re-
spect 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 con-
tact with your skin or clothing.
If a service fluid is swallowed, contact a
physician immediately.
ModelCapacityFuels, coolants, lubricants, etc.
Engine with oil filterAll models8.5 US qt. (8.0 l)Approved engine oils
Manual transmissionC 2301
1Canada only.
1.3 US qt. (1.2 l)MB Manual Transmission Oil
C 230 Sport11.3 US qt. (1.2 l)
C 3001.6 US qt. (1.5 l)
C 300 Sport1.6 US qt. (1.5 l)

477 Technical data
Fuels, coolants, lubricants, etc.
ModelCapacityFuels, coolants, lubricants, etc.
Automatic transmissionC 230 (all models)1
1Canada only.
9.51 US qt. (9.0 l)MB Automatic Transmission Fluid
C 3009.51 US qt. (9.0 l)
C 300 Sport9.51 US qt. (9.0 l)
C 300 4MATIC10.25 US qt. (9.7 l)
C 300 4MATIC Sport10.25 US qt. (9.7 l)
C 35019.51 US qt. (9.0 l)
C 350 Sport9.51 US qt. (9.0 l)
C 350 4MATIC110.25 US qt. (9.7 l)
C 350 4MATIC Sport110.25 US qt. (9.7 l)
Rear axleC 230 (all models)11.06 US qt. (1.0 l)Hypoid gear oil SAE 85 W 90
C 300 (all models)1.06 US qt. (1.0 l)
C 350 (all models)1.16 US qt. (1.1 l)
Front axleC 230 4MATIC (all mod-
els)11.06 US qt. (1.0 l)Hypoid gear oil SAE 85 W 90
C 300 4MATIC (all models)1.16 US qt. (1.1 l)
C 350 4MATIC (all models)1.16 US qt. (1.1 l)

478 Technical data
Fuels, coolants, lubricants, etc.
ModelCapacityFuels, coolants, lubricants, etc.
Power steeringAll models0.85 US qt. (0.8 l)MB Power Steering Fluid
(Chevron Texaco PSF 9109)1
1For detailed information, please refer to the Factory Approved Service Products pamphlet (USA only) or contact an authorized Mercedes-Benz Center.
Front wheel hubsAll modelsapprox. 3.6 oz. (95 g) eachHigh-temperature roller bearing grease
Brake systemAll modelsapprox. 0.53 US qt. (0.5 l)MB Brake Fluid (DOT 4+)
Cooling systemAll models5.07 US qt. (4.8 l)MB 325.0 Anticorrosion/Antifreeze
Fuel tank
including a reserve ofAll models17.43 US gal (66.0 l)
2.11 US gal (8.0 l)Premium unleaded gasoline:
Minimum Posted Octane 91
(Avg. of 96 RON/86 MON)
C 300 and C 300 Sport (with automatic
transmission*), USA only:
Flexible Fuel Vehicle (identified by a label
reading Premium gasoline or E85 only!
on fuel filler flap).
Alternative fuel: Ethanol fuel (E85)
Air conditioning systemAll modelsR-134a refrigerant and special PAG
lubricant oil (never R-12)

482 Technical data
Fuels, coolants, lubricants, etc.
In areas where carbon deposits may be
encountered due to lack of availability of
gasolines which contain these additives,
Mercedes-Benz recommends the use of
additives approved by us for use on
Mercedes-Benz vehicles.
Refer to Factory Approved Service Prod-
ucts pamphlet (USA only), or contact an
authorized Mercedes-Benz Center for a
listing of approved product(s). Follow
directions on product label.
Do not blend other fuel additives with fuel.
This only results in unnecessary cost and
may be harmful to the engine operation.Fuel requirements
Only use premium unleaded fuel:

The octane number (posted at the
pump) must be 91 min. It is an average
of both the Research Octane Number
(RON) and the Motor Octane Number
(MON): (RON+MON)/2. This is also
known as the ANTI-KNOCK INDEX.
Unleaded gasoline containing oxygenates
such as ethanol, IPA, IBA and TBA can be
used provided the ratio of any one of these
oxygenates to gasoline does not exceed
10%; MTBE must not exceed 15%.
The ratio of methanol to gasoline must not
exceed 3% plus additional co-solvents.
Using mixtures of ethanol and methanol is
not allowed. Gasohol, which contains
10% ethanol and 90% unleaded gasoline,
can be used.
These blends must also meet all other fuel
requirements, such as resistance to spark
knock, boiling range, vapor pressure, etc.
Flexible Fuel Vehicles (USA only)
C 300 and C 300 Sport (with automatic
transmission*) are Flexible Fuel Vehicles.
Flexible Fuel Vehicles are identified by a
label reading Premium gasoline or E85
only! on fuel filler flap).
These vehicles are designed to operate on
premium unleaded gasoline or Ethanol fuel
(E85), or on any mixture of these two.
Ethanol fuel (E85) is a mixture of approxi-
mately 85% Ethanol and 15% unleaded
gasoline.
!Damage or malfunction resulting from poor
fuel quality or from blending additional fuel addi-
tives other than those tested and approved by us
for use on Mercedes-Benz vehicles are not cov-
ered by the Mercedes-Benz Limited Warranty.
For a listing of approved products, refer to the
Factory Approved Service Products pamphlet
(USA only) or contact an authorized
Mercedes-Benz Center.Warning!G
Ethanol fuel (E85) and its fumes are highly
flammable, poisonous and burn easily. Etha-
nol fuel can cause serious injuries if ignited
or if you come into contact with it or inhale
fumes of it. Avoid inhalation of Ethanol
fumes and skin contact with Ethanol. Extin-
guish all open flames before fueling. Never
smoke or create sparks close to Ethanol.

487 Index
A
ABS 27, 59
Indicator lamp 59, 374
Messages in display 389, 398
Accelerator position, automatic
transmission 142
Accessory weight 356
Accident 132
Air bags 36
Children 51
Front 39
Front passenger front air bag off
indicator lamp 29, 45
OCS 41
Safety guidelines 38
Side impact 40
Window curtain 40, 41
Air conditioning system see Climate con-
trol system
Air conditioning, Cooling 258, 267
Air conditioning, Refrigerant 478, 480
Air distribution 254, 263
Air pressure see Tire inflation pressure
Air recirculation mode 257, 265Air vents 247
Center air vents 248
Rear center console air vents 249
Air volume 254, 263, 268
Alarm
Audible alarm and flashing exterior
lamps (Panic alarm) 58
Alarm system see Anti-theft systems
Antiglare
Rear view mirrors 100
Anti-theft systems 66
Alarm, visual and audible 66
Anti-theft alarm system 66
Immobilizer 66
Aquaplaning see Hydroplaning
Armrest 284, 286
Ashtrays 291, 292
Aspect ratio 356
Audio Aux mode 220
AUDIO menu (Control system) 158Audio system 176
“911” emergency call 231
Audio and telephone, operation 176
Audio Aux mode 220
Audio control unit 177
Audio display 180
Bluetooth
® operation 222
Call lists 236
CD changer* 208, 214
CD operation 208
CD player 160, 208
CD, fast forward/rewind 219
CD, pause function 218
CD, submenu overview 208
Components 177
Controller 182
Example, how to use 187
Functions during a single call 240
Making calls 237
On/Off 188
Operating 185
Operating and display elements 178
Operating CD player 213
Operating safety 177
Operation 188
Overview 176

488 Index
Phone cook 233
Radio operation 194
Satellite radio* operation 200
Sound settings 189
Surround sound* (Canada only) 190
SYS menu 192
SYS menu, Bluetooth
® settings 192
SYS menu, display settings 192
SYS menu, language settings 193
SYS menu, reset to factory
settings 193
Telephone menu* 222
Volume 189
Auto-dimming*, Rear view mirrors 100
Automatic central locking 80
Activating/deactivating
(Control system) 173
Automatic climate control (3-zone) see Cli-
mate control system
Automatic headlamp mode 109, 172
Automatic lighting control, Interior
lighting 115
Automatic shift program 144Automatic transmission
Accelerator position 142
Emergency operation (limp-home
mode) 146
Fluid 476, 477
Fluid level 328
Gear ranges 143
Gear shifting malfunctions 146
Hill start assist system 246
Kickdown 142
Shifting procedure 139
Starting the engine 127
Transmission fluid 328
Automatic transmission*
Automatic shift program 144
Gear selector lever 138
Gear selector lever control one-touch
gearshifting 145
Gear selector lever positions 140
Program mode selector switch 144
Aux socket 220B
Backrest 281
Backup lamps
Replacing bulbs 430, 431
Bar 356
BAS 60
Batteries, SmartKey
Checking battery condition 78
Replacing 428
Batteries, SmartKey with KEYLESS-GO*
(Canada only)
Checking battery condition 78
Replacing 428
Battery 448
Battery, vehicle 446
Charging 449
Discharged, Jump starting 451
Disconnecting 448
Message in display 399
Reconnecting 450
Removing 449
Bead 356
Beverage holder see Cup holder

493 Index
ESP®62
Four wheel electronic traction system
with ESP
®65
Messages in display 389, 397, 398
Warning lamp 27, 376, 379, 380
ETD 49
Safety guidelines 38
Ethanol fuel
At the gas station 322
Switching fuels 483
Exterior rear view mirrors
Adjusting 97
Auto-dimming on the driver’s
side 99, 100
Fold-in settings 175
Power folding* 98F
Fahrenheit see Temperature display
mode 167
First aid kit 420
Flat tire 440
Lowering the vehicle 445
Mounting the Minispare wheel 441
Preparing the vehicle 440
Flexible fuel vehicles 482
At the gas station 322
Switching fuels 483
Floormats* 294
Fluids
Automatic transmission fluid 476,
477
Brake fluid 478, 480
Capacities 476
Engine coolant 329, 478, 484
Engine oil 328, 476, 480
Power steering fluid 478
Windshield washer and headlamp
cleaning system 479, 486
Fog lamps 431
Messages in display 410
Replacing bulbs 431, 432, 436Four wheel electronic traction system
(4MATIC) with ESP
®65
4MATIC 65
Front air bags 39
Front lamps see headlamps
Front passenger front air bag 39
Messages in display 393
Front passenger front air bag off indicator
lamp 29, 45, 385
Front seats
Heating* 91
Fuel 322, 478, 481
Additives 481
Capacity, Fuel tank 478
Cruising range 483
E85 (Ethanol fuel) 478, 483
Filling the tank 322
Fuel filler flap and cap 322
Fuel reserve warning lamp 27, 150,
380
Gauge 27, 150
Premium unleaded gasoline 478,
481
Requirements, Octane rating 482
Switching (Flexible fuel vehicle) 483