2005 MERCEDES-BENZ C COUPE tire pressure

399 Practical hints
Flat tire

Open flap1 on electric air pump.

Pull out electrical plug3 and air hose
with pressure gauge4.

Remove the valve cap from valve.

Screw air hose4 onto the tire valve.

Insert electrical plug3 into vehicle
cigarette lighter socket.

Turn the SmartKey in the starter switch
to position1.

Press I on electric air pump switch 2.
The electric air pump should now
switch on and inflate the spare tire.

Inflate the spare tire to approximately
36 psi (2.5 bar).
This takes about five minutes for the
spare tire. Air hose4 and union
nut5 can become hot during infla-
tion. Exercise proper caution to avoid
burning yourself when using the equip-
ment.

Press0on electric air pump switch2.

Turn the SmartKey in the starter switch
to position0.

If the tire pressure is above 36 psi
(2.5 bar), release excess tire pressure
using the vent screw.

Detach the electric air pump.

Store the electrical plug and the air
hose behind the flap and place the air
pump back in the trunk.
!Do not operate the electric air pump
longer than six minutes without
interruption. Otherwise it may over-
heat.
You may operate the electric air pump
again after it has cooled off.
Warning!
G
Follow recommended inflation pressures.
Do not overinflate tires. Overinflated tires
can result in sudden deflation (blowout) be-
cause they are more likely to become punc-
tured or damaged by road debris, potholes,
etc.
Do not underinflate tires. Underinflated tires
wear unevenly, adversely affect handling
and fuel economy, and are more likely to fail
from being overheated.

419 Technical data
Rims and Tires
Rims and Tires
Use only tires and rims which have been
specifically developed for your vehicle and
tested and approved by Mercedes-Benz.
Other tires and rims can have detrimental
effects, such as

poor handling characteristics


increased noise


increased fuel consumption
!Moreover, tires and rims not approved
by Mercedes-Benz may, under load, ex-
hibit dimensional variations and differ-
ent tire deformation characteristics
that could cause them to come into
contact with the vehicle body or axle
parts. This may result in damage to the
tires or the vehicle.
iFurther information on tires and rims is
available at any authorized
Mercedes-Benz Center. A placard with
the recommended tire inflation
pressures is located on the driver’s
door B-pillar. Some vehicles may have
supplemental tire inflation pressure
information for driving at high speeds
(page 310) or for vehicle loads less
than the maximum loaded vehicle con-
dition. If such information is provided,
it can be found on the placard located
on the inside of the fuel filler flap. The
tire inflation pressure should be
checked regularly and should only be
adjusted on cold tires. Follow tire
manufacturer’s maintenance recom-
mendation included with vehicle.

437 Technical terms
ABS
(A
ntilock B
rake S
ystem)
Prevents the wheels from locking up
during braking so that the vehicle can
continue to be steered.
Accessory weight
(
page 323)
Air pressure
(page 323)
Alignment bolt
Metal pin with thread. The centering
pin is an aid used when changing a tire
to align the wheel with the wheel hub.
Aspect ratio
(page 323)
Bar
(page 323)
BAS
(Brake A
ssist S
ystem)
System for potentially reducing braking
distances in emergency braking situa-
tions. The system is activated when it
senses an emergency based on how
fast the brake is applied.Bead
(
page 323)
Bi-Xenon headlamps*
Headlamps which use an electric arc as
the light source and produce a more in-
tense light than filament headlamps.
Bi-Xenon headlamps produce low
beam and high beam.
CAC
(Customer A
ssistance C
enter)
Mercedes-Benz customer service cen-
ter, which can help you with any ques-
tions about your vehicle and provide
assistance in the event of a break-
down.
CAN system
(C
ontroller A
rea N
etwork)
Data bus network serving to control ve-
hicle functions such as door locking or
windshield wiping.Cockpit
All instruments, switches, buttons and
indicator/warning lamps in the passen-
ger compartment needed for vehicle
operation and monitoring.
Cold tire inflation pressure
(
page 323)
Collapsible tire
An especially compact spare tire that
must be inflated with a provided air
pump before using. It should only be
used to bring the vehicle to the nearest
service station.
COMAND*
(Cockpit M
anagement and D
ata Sys-
tem)
Information and operating center for
vehicle sound and communications
systems, including the radio and navi-
gation system, as well as other optional
equipment (CD changer, telephone,
etc.).

439 Technical terms
GPS*
(G
lobal P
ositioning S
ystem)
Satellite-based system for relaying
geographic location information to and
from vehicles equipped with special re-
ceivers. Employs CD digital maps for
navigation.
GVW
(G
ross V
ehicle W
eight)
(
page 324)
GVWR
(Gross V
ehicle W
eight R
ating)
(
page 324)
Instrument cluster
The displays and indicator/warning
lamps in the driver’s field of vision, in-
cluding the tachometer, speedometer
and fuel gauge.Kickdown
Depressing the accelerator past the
point of resistance shifts the transmis-
sion down to the lowest possible gear.
This very quickly accelerates the vehi-
cle and should not be used for normal
acceleration needs.
Kilopascal (kPa)
(
page 324)
Lock button
Button on the door which indicates
whether the door is locked or un-
locked. Pushing the lock button down
on an individual door from inside will
lock that door.
Maintenance System (U.S. vehicles)
Maintenance service indicator in the
multifunction display that informs the
driver when the next vehicle mainte-
nance service is due. The Maintenance
System in your vehicle tracks distance
driven and the time elapsed since your
last maintenance service, and calls for
the next maintenance service accord-
ingly.Maximum load rating
(
page 324)
Maximum loaded vehicle weight
(page 324)
Maximum tire inflation pressure
(page 324)
Memory function*
Used to store three individual seat,
steering wheel and mirror positions for
each SmartKey.
MON
(Motor O
ctane N
umber)
The Motor Octane Number for gasoline
as determined by a standardized meth-
od. It is an indication of a gasoline's
ability to resist undesired detonation
(knocking). The average of both the
MON (Motor Octane Number) and
->RON (Research Octane Number) is
posted at the pump, also known as
ANTI-KNOCK INDEX.

440 Technical termsMultifunction display
Display field in the instrument cluster
used to present information provided
by the control system.
Multifunction steering wheel
Steering wheel with buttons for operat-
ing the control system.
Normal occupant weight
(
page 324)
OCS
(Occupant C
lassification S
ystem)
The system automatically turns the
front passenger front air bag on or off
based on the classified occupant size
category determined by weight sensor
readings from the seat.
Overspeed range
Engine speeds within the red marking
of the tachometer dial. Avoid this en-
gine speed range, as it may result in se-
rious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.Poly-V-belt drive
Drives engine-components (alternator,
AC compressor, etc.) from the engine.
Power train
Collective term designating all compo-
nents used to generate and transmit
motive power to the drive axles, includ-
ing


engine


clutch/torque converter


transmission


transfer case


drive shaft


differential


axle shafts/axles
Production options weight
(
page 324)
Program mode selector switch
Used to switch the automatic transmis-
sion between standard operation S and
winter operation C.PSI
(P
ounds per s
quare i
nch)
(
page 325)
Recommended tire inflation pressure
(page 325)
Restraint systems
Seat belts, child restraints, lower an-
chors and tethers for children (LATCH).
As independent systems, their protec-
tive functions complement one
another.
Rim
(page 325)
RON
(Research O
ctane N
umber)
The Research Octane Number for gaso-
line as determined by a standardized
method. It is an indication of a gaso-
line's ability to resist undesired detona-
tion (knocking). The average of both
the ->MON (Motor Octane Number)
and RON (Research Octane Number) is
posted at the pump, also known as AN-
TI-KNOCK INDEX.

444 IndexAdjusting sound functions 199
Adjusting the volume 199
Air bags 61
Children 62
Front 65
Front passenger front air bag off indica-
tor lamp 27, 76, 345
Passenger 65
Safety guidelines 64
Side impact 66
Window curtain 66
Air conditioner refrigerant 428
Air conditioning (cooling)
Turning off 192
Climate control 179
Turning on 192
Climate control 179
Air distribution
Adjusting 186
Climate control 176
Air pressure 323
Air pressure see Tire inflation pressure
Air pump, electric
Turning on 399Air recirculation mode 189
Activating 189
Climate control 177
Deactivating 190
Climate control 178
Air vents, rear passenger compartment
Adjustable 194
Climate control 180
Air volume
Adjusting 187
Climate control 176
Alarm
Audible 80, 87, 88
Canceling 87, 88
Visual 86
Alarm system
Anti-theft 86
Alignment bolt 396
Alignment bolt (vehicle tool kit) 437
Anticorrosion/antifreeze 433
Antiglare
Automatic* 168
Manual 167
Antilock brake system (ABS) 437Anti-theft alarm system
Arming 86
Canceling alarm 87, 88
Disarming 87
Anti-theft systems 86
Anti-theft alarm system 86
Immobilizer 86
Tow-away alarm 87
Aquaplaning 281
Armrest
Storage spaces 255
Ashtrays
Center console 257
Rear seat 258
Aspect ratio 323
ATF (automatic transmission fluid) 296
AUDIO menu 129
Selecting radio station 130
Selecting satellite radio* station 130

447 Index
Checking
Brake fluid 290
Coolant level 290, 296, 359
Headlamp cleaning fluid 290
Oil level 290, 292
Tire inflate pressure 290
Vehicle lighting 290
Windshield washer fluid 290
Child safety 70
Air bags 62
Front passenger front air bag off indica-
tor lamp 27, 76, 345
Infant and child restraint systems 66,
70
LATCH child seat anchors 78
OCS 73
Child seat anchors see LATCH child seat
anchors
Cigarette lighter 259
Cleaning
Cup holders 337
Gear selector lever 337
Hard plastic trim items 337
Headlamps 167
Headliner 337
Instrument cluster 337Leather upholstery 338
Light alloy wheels 336
MB Tex upholstery 338
Plastic and rubber parts 338
Seat belts 337
Steering wheel 337
Upholstery 338
Windows 336
Windshield 54
Wiper blades 336
Wood trims 338
Cleaning tires 302
Climate control 172
Adjusting air distribution and
volume 176
Defogging windshield 176
Defrosting 177
Rear window defroster 170
Setting the temperature 175
Clock 25, 139
Closing
Ashtray, center console 258
Cup holder 257
Glove box 254
Hood 292
Luggage compartment 95Panorama roof with power tilt/sliding
panel* in an emergency 381
Panorama roof with power tilt/sliding
panel* with SmartKey 244
Storage compartment, armrest 255
Trunk lid 95
Windows 238
Windows with SmartKey 239
Cockpit 22, 437
Cockpit management and data system
(COMAND*) 437
Cold tire inflation pressure 323
Collapsible tire 437
Collapsible wheel chock 375
COMAND* see separate operating
instructions 437
Combination switch 114
Turn signals 52
Windshield wipers 53
Comfort driving
Transmission program mode 164
Control and operation of radio
transmitters 284

456 IndexM
Main dimensions 424
Maintenance
Vehicles with E85 fuel 432
Maintenance service
Overdue 331
Types 331
Maintenance service indicator
Calling up 331, 332
Clearing 331, 332
Maintenance System (USA
vehicles) 330, 439
Malfunction
Displaying 132
Malfunction memory
Calling up 132
Clearing 133
Manual headlamp mode 111
Manual operations
Fuel filler flap 379
Interior lighting control 118
Locking the vehicle 379
Panorama roof with power tilt/sliding
panel* 381
Unlocking the driver’s door 377
Unlocking the trunk lid 378Unlocking transmission gear selector
lever 380
Manual seat
Adjusting 36
Adjusting backrest tilt 36
Adjusting head restraint height 37
Adjusting head restraint tilt 37, 39
Adjusting seat cushion tilt 36
Adjusting seat height 36
Front seat head restraints 102
Seat fore and aft adjustment 36
Manual transmission 157
Shifting into reverse 158
Starting with 48
MAXCOOL maximum cooling 188
Maximum load rating 324
Maximum loaded vehicle weight 324
Maximum tire inflation pressure 324
MB Tex upholstery
Cleaning 338
Mechanical key 377
Memory function* 107, 439
Recalling positions from
memory 108
Storing exterior rear view mirror park-
ing position 109Storing key dependent settings 108
Menus 124
AUDIO 129
In control system 126, 127
NAVI* 131
Settings menu 133
Standard display 128
Submenus 125
TEL* 153
Trip computer 151
Vehicle status message memory
menu 132
Microphone
Hands-free microphone 29
Miles/kilometers in speedometer
Setting 137
Mirrors
Adjusting 42
Auto-dimming* for rear view
mirrors 168
Exterior rear view mirror parking
position* 150, 169
Exterior rear view mirrors 42
Interior rear view mirror 42, 167
Storing exterior rear view mirror park-
ing position* 109