2008 MERCEDES-BENZ C300 4MATIC spare wheel

Contents
At the gas station .............................. 322
Refueling ...................................... 322
Check regularly and
before a long trip.......................... 324
Engine compartment ......................... 325
Hood ............................................ 325
Engine oil ..................................... 327
Transmission fluid level ................ 328
Coolant level ................................ 329
Windshield washer system and
headlamp cleaning system* ......... 330
Tires and wheels ................................ 331
Important guidelines .................... 331
Tire care and maintenance........... 332
Direction of rotation ..................... 334
Loading the vehicle ...................... 334
Recommended tire
inflation pressure ......................... 339
Checking tire inflation pressure ... 341
Tire labeling.................................. 348
Load identification ....................... 352
DOT,
Tire Identification Number (TIN) ... 352
Maximum tire load ....................... 353
Maximum tire inflation pressure .. 354Uniform Tire Quality Grading
Standards (U.S. vehicles) .............. 354
Tire ply material ............................ 356
Tire and loading terminology......... 356
Rotating tires ................................ 359
Winter driving ..................................... 360
Winter tires ................................... 360
Snow chains.................................. 361
Maintenance....................................... 362
Maintenance
service indicator message ............ 362
Calling up the maintenance
service indicator display ............... 363
Resetting the maintenance
service indicator ........................... 363
Vehicle care........................................ 364
Cleaning and care of vehicle ......... 364
Practical hints.................................. 373
What to do if …? ................................. 374
Lamps in instrument cluster ......... 374
Air bag off indicator lamp ............. 385
Vehicle status messages in
the multifunction display .............. 387
Where will I find ...? ............................ 420
First aid kit.................................... 420
Vehicle jack, vehicle tool kit,
luggage bowl, Minispare wheel ..... 420
Unlocking/locking in an emergency .. 424
Unlocking the vehicle ................... 424
Locking the vehicle ....................... 425
Fuel filler flap ................................ 426
Manually unlocking the
transmission gear selector lever ... 426
Resetting activated head restraints.... 427
Replacing SmartKey batteries ............ 428
Replacing bulbs .................................. 430
Bulbs............................................. 431
Replacing bulbs for front lamps .... 432
Replacing bulbs for rear lamps ..... 436
Replacing wiper blades ...................... 438
Removing wiper blades ................. 439
Installing wiper blades .................. 439

Contents
Flat tire .............................................. 440
Preparing the vehicle.................... 440
Mounting the Minispare wheel ..... 441
Battery ............................................... 446
Disconnecting the battery ............ 448
Removing the battery ................... 449
Charging and reinstalling
the battery.................................... 449
Reconnecting the battery ............. 450
Jump starting ..................................... 451
Towing the vehicle ............................. 453
Installing towing eye bolt.............. 455
Fuses ................................................. 456
Fuse box
in passenger compartment .......... 457
Fuse box
in engine compartment ................ 457
Fuse box
in the trunk................................... 458
Technical data................................. 459
Parts service ...................................... 460
Warranty coverage............................. 461
Loss of Service and
Warranty Information Booklet ...... 461
Identification labels ........................... 462
Layout of poly-V-belt drive ................. 464
C 300/C 350 ............................... 464
Engine................................................ 465
Rims and tires.................................... 467
Same size tires ............................. 468
Mixed size tires ............................ 469
Minispare wheel ........................... 471
Electrical system ............................... 473
Main dimensions and weights............ 474
Main dimensions .......................... 474
Weights ........................................ 475
Fuels, coolants, lubricants, etc. ......... 476
Capacities .................................... 476
Engine oils.................................... 480
Engine oil additives ...................... 480
Air conditioning refrigerant .......... 480
Brake fluid .................................... 480
Premium unleaded gasoline ......... 481
Gasoline additives ........................ 481Fuel requirements ........................ 482
Flexible Fuel Vehicles (USA only) . 482
Coolants ...................................... 484
Windshield washer system
and headlamp cleaning system* .. 486
Index................................................. 487

21 At a glance
Exterior view
ItemPage
1Trunk

Unlocking

Opening and closing

Minispare wheel

Vehicle tool kit
269
269
441
420
2Rear lamps431
3Rear window, defrosting265
4Fuel filler flap
Refueling
Gasoline322
322
481
5Doors

Locking and unlocking

Opening and closing

Unlocking/locking in an
emergency
70
70
424
6Exterior rear view mirror

Adjusting97
ItemPage

Auto-dimming rear view
mirrors*

Power folding exterior rear
view mirrors*

Parking position*
(Canada only)
97
100
98
101
7Tires and wheels

Checking tire inflation
pressure

Tire Pressure Monitoring
System (TPMS), (USA only)

Run Flat Indicator (Canada
only)

General information

Minispare wheel

Flat tire
331
341
344
342
331
422
440
8Towing the vehicle
Installing towing eye bolt453
455
ItemPage
9Headlamp cleaning system*112
aFront lamps431
bHood, opening
Engine oil
Coolant
Battery325
327
329
446
cWindshield wipers
Wiper blades, replacing
Wiper blades, cleaning117
438
368
dWindshield
Front window, defrosting
Cleaning with wiper fluid
Cleaning
264
119
368
eRoofs

Power tilt/sliding sunroof

Panorama roof with power
tilt/sliding panel*
273
276

23 At a glance
Storage compartments
ItemPage
1Glove box
Power outlet
Aux socket284
293
220
2Door pocket
3Storage pocket286
4Door pocket
5Hooks on left and right side in
trunk288
6Parcel net on left side in trunk288
7Storage space for Minispare
wheel and vehicle tool kit in
trunk422,
420
8Door pocket
ItemPage
9Storage pocket286
aDoor pocket
bDocument holder in sun visor289
cParcel net in front passenger
footwell285
dAshtray
Cigarette lighter291
292
eCup holder287
fRight storage compartment in
front center armrest284
ItemPage
gRight storage compartment in
front center armrest284
hAshtray in rear passenger
compartment
Power outlet292
293
jCup holder in the rear center
armrest287
kRear center armrest with stor-
age compartment and
cup holder286
287

63 Safety and Security
Driving safety systems
For more information, see “Practical hints”
section (
page 380) and (page 387).Electronic traction system
The electronic traction system is a compo-
nent of ESP
®.
The electronic traction system improves
the vehicle’s ability to utilize available trac-
tion, especially under slippery road condi-
tions by applying the brakes to a spinning
wheel.
When you switch off the ESP
®, the elec-
tronic traction system is still enabled.Switching off the ESP
®
To improve the vehicle’s traction, switch
off the ESP® in driving situations where it
would be advantageous to have the drive
wheels spin and thus cut into surfaces for
better grip such as:

when driving with snow chains

in deep snow

in sand or gravel
!Vehicles without 4MATIC:
Because the ESP® operates automatically, the
engine and ignition must be shut off (SmartKey
in starter switch position0 or1 or KEYLESS-GO
(Canada only) start/stop button* in position0
or1) when

the parking brake is being tested on a brake
test dynamometer

the vehicle is being towed with the front axle
raised
Active braking action through the ESP
® may oth-
erwise seriously damage the brake system.
For information on vehicles with 4MATIC, see
“Four wheel electronic traction system (4MATIC)
with the ESP
®” (e page 65).
Warning!G
If you are driving too fast, the electronic
traction system cannot reduce the risk of an
accident.
The electronic traction system cannot pre-
vent the natural laws of physics from acting
on the vehicle.
Warning!G
The ESP® should not be switched off during
normal driving other than in the circum-
stances described below. Disabling of the
system will reduce vehicle stability in stan-
dard driving maneuvers.
Do not switch off the ESP
® when a
Minispare wheel is mounted.

299 Controls in detail
Useful features
Roadside Assistance button*b
The Roadside Assistance buttonb is
located in the overhead control panel.
1Roadside Assistance buttonb
Press and hold Roadside Assistance
button b (for longer than
2 seconds).
A call to a Mercedes-Benz Roadside As-
sistance dispatcher will be initiated.
The button will flash while the call is in
progress. The message:

Connecting call appears in the
multifunction display
and the audio system is muted.When the connection is established, the
message:

Call connected appears in the multi-
function display
The Tele Aid system will transmit data gen-
erating the vehicle identification number,
model, color and location (subject to avail-
ability of cellular and GPS signals).
A voice connection between the Roadside
Assistance dispatcher and the occupants
of the vehicle will be established.
Describe the nature of the need for as-
sistance.
The Mercedes-Benz Roadside Assistance
dispatcher will either dispatch a qualified
Mercedes-Benz technician or arrange to
tow your vehicle to the nearest authorized
Mercedes-Benz Center. For services such
as labor and/or towing, charges may ap-
ply. Refer to the Roadside Assistance Man-
ual for more information.
These programs are only available in the
USA:

Sign and Drive services: Services such
as jump start, a few gallons of fuel or
the replacement of a flat tire with the
vehicle spare tire are obtainable.
iThe indicator lamp in the Roadside Assis-
tance buttonb remains illuminated in red for
approximately 10 seconds during the system
self-check after switching on the ignition (togeth-
er with the SOS button and the Information
button*}).
See system self-check (
page 296) if the indi-
cator lamp does not come on in red or stays on
longer than approximately 10 seconds.
If the indicator lamp in the Roadside Assistance
buttonb is flashing continuously and no
voice connection to the Response Center was
established, the Tele Aid system could not ini-
tiate a Roadside Assistance call (e.g. the relevant
telephone network is not available). The mes-
sage:

Call failed appears in the multifunction
display for approximately 10 seconds
Roadside Assistance calls can be terminated us-
ing the t button on the multifunction steer-
ing wheel or the respective button for ending a
telephone call on the audio system or the
COMAND* head unit.

332 Operation
Tires and wheels
Tire care and maintenance
Regularly check your tire inflation pressure
at least once a month. For more informa-
tion on checking tire inflation pressure,
see “Recommended tire inflation pres-
sure” (
page 339).Tire inspection
Every time you check the tire inflation
pressure, you should also inspect your
tires for the following:

excessive treadwear (page 333)

cord or fabric showing through the
tire’s rubber

bumps, bulges, cuts, cracks or splits in
the tread or side of the tire
Replace the tire if you find any of the above
conditions.
Make sure you also inspect the spare tire
periodically for condition and inflation.
Spare tires will age and degrade over time
even if never used, and thus should be in-
spected and replaced when necessary.Life of tire
The service life of a tire is dependent upon
varying factors including but not limited to:

Driving style

Tire inflation pressure

Distance driven
Warning!G
Regularly check the tires for damage. Dam-
aged tires can cause tire inflation pressure
loss. As a result, you could lose control of
your vehicle.
Worn, old tires can cause accidents. If the
tire tread is badly worn, or if the tires have
sustained damage, replace them.
Warning!G
Tires and spare tire should be replaced after
6 years, regardless of the remaining tread.

334 Operation
Tires and wheels
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 rotation (spinning) of
the tire.Loading the vehicle
Two labels on your vehicle show how much
weight it may properly carry.
1) The Tire and Loading Information
placard can be found on the driver’s
door B-pillar. This placard tells you im-
portant information about the number
of people that can be in the vehicle and
the total weight that can be carried in
the vehicle. It also contains information
on the proper size and recommended
tire inflation pressures for the original
equipment tires on your vehicle.
2) The certification label, also found on
the driver’s door B-pillar tells you about
the gross weight capacity of your vehi-
cle, called the Gross Vehicle Weight
Rating (GVWR). The GVWR includes the
weight of the vehicle, all occupants,
fuel and cargo. The certification label
also tells you about the front and rear
axle weight capacity, called the Gross
Axle Weight Rating (GAWR). The GAWR
is the total allowable weight that can be carried by a single axle (front or rear).
Never exceed the GVWR or GAWR for
either the front axle or rear axle.
1Driver’s door B-pillar
Following is a discussion on how to work
with the information contained on the Tire
and Loading Information placard with re-
gards to loading your vehicle.
iSpare wheels may be mounted against the
direction of rotation (spinning) even with a unidi-
rectional tire for temporary use only until the reg-
ular drive wheel has been repaired or replaced.
Always observe and follow applicable temporary
use restrictions and speed limitations indicated
on the spare wheel.