2005 MERCEDES-BENZ C CLASS COUPE Air bag

349
Practical hints
What to do if …
Text messagesDisplay message
Possible cause
Possible solution
Front-pass
airbag activated
See Operator’s Manual
Air bag is activated while driving even
though a child, small individual, or object
below the system's weight threshold is on
the front passenger seat, or the front pas-
senger seat is empty. Objects on the seat
or forces acting on the seat may make the
system sense supplemental weight.
Stop the vehicle in a safe location as soon
as possible and check the following:
Make sure that there is nothing
between seat cushion and child seat
and check installation of the child
seat.

Make sure that no objects applying
supplemental weight onto the seat are
present. The system may recognize
such supplemental weight and sense
that an occupant on the front passen-
ger seat is of a heavier weight than ac-
tually present.
(Continued on next page)

350 Practical hintsWhat to do if …Display message
Possible cause
Possible solution
Front-pass
airbag activated
See Operator’s Manual
If performing any of the above corrective steps is
successful, the message
Front-pass airbag
deactivated See Operator’s Manual
will appear
in the multifunction display, confirming the situa-
tion has been remedied. Note that after perform-
ing the corrective steps, it may take up to
60 seconds for the message
Front-pass airbag
deactivated See Operator’s Manual
to appear.
If the message
Front-pass airbag activated
See Operator’s Manual
remains on in the multi-
function display and/or the 56indicator
lamp remains out even after performing the
above corrective steps, have the system checked
as soon as possible by an authorized
Mercedes-Benz Center.
Warning!
G
If the message
Front-pass airbag
activated See Operator’s Manual
re-
mains on in the multifunction display and/or
the 56 indicator lamp remains out
even after performing the above corrective
steps, do not have any children12 years old
and under and other small individuals use
the front passenger seat until the system
has been repaired.

351
Practical hints
What to do if …
Display message
Possible cause
Possible solution
Front-pass
airbag deactivated
See Operator’s Manual
Air bag is deactivated while driv-
ing even though an adult or some-
one larger than a small individual
is occupying the front passenger
seat. Forces acting on the seat
may make the system sense a
decrease in weight.
Stop the vehicle in a safe location as soon as possi-
ble and check the following:
Do not lean on armrests or lift yourself up using
handle over the door. This may make the system
sense that an occupant of a lesser weight than
actually present is on the front passenger seat.

Re-position yourself.

Sit properly belted in a nearly upright position
with your back against the seat backrest.
If performing any of the above corrective steps is
successful, the message
Front-pass airbag
activated See Operator’s Manual
will appear in the
multifunction display, confirming the situation has
been remedied.
(Continued on next page)

352 Practical hintsWhat to do if …Display message
Possible cause
Possible solution
Front-pass
airbag deactivated
See Operator’s Manual
Note that after performing the corrective steps, it
may take up to 60 seconds for the message Front-pass airbag activated See Operator’s
Manual
to appear.
If the message
Front-pass airbag deactivated See
Operator’s Manual
remains on in the multifunction
display and/or the 56indicator lamp re-
mains on even after performing the above corrective
steps, have the system checked as soon as possible
by an authorized Mercedes-Benz Center.
Do not have any passenger use the front passenger
seat until the system has been repaired.
Warning!
G
If the message
Front-pass airbag
deactivated See Operator’s Manual
remains on in the multifunction display
and/or the 56indicator lamp re-
mains illuminated even after performing the
above corrective steps, do not have any pas-
senger use the front passenger seat until
the system has been repaired.

440 Technical termsMultifunction displayDisplay 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.

441
Technical terms
Shift lock
When the vehicle is parked, this lock
prevents the gear selector lever from
being moved out of position P without
SmartKey turned and brake pedal de-
pressed.
Sidewall (
page 325)
SRS (Supplemental R
estraint S
ystem)
Air bags, air bag control unit (with
crash sensor), emergency tensioning
device. Though independent systems,
they are closely interfaced to provide
effective occupant protection. Tele Aid* System
(T
elematic A
larm I
dentification on D
e-
mand)
The Tele Aid system consists of three
types of response: automatic and man-
ual emergency, roadside assistance
and information. Tele Aid is initially
activated by completing a subscriber
agreement and placing an acquain-
tance call.
The Tele Aid system is operational pro-
vided that the vehicle’s battery is
charged, properly connected, not dam-
aged and cellular and GPS coverage is
available.
Tightening torque Force times lever arm (e.g. a lug
wrench) with which threaded fasteners
such as wheel bolts are tightened.
TIN (T
ire I
dentification N
umber)
(
page 325)
Tire load rating (page 325) Tire ply composition and material used
(
page 325)
Tire speed rating (page 325)
Traction (page 325)
Tread (page 325)
Treadwear indicators (page 325)
Uniform Tire Quality Grading Standards (page 326)
Vehicle capacity weight (page 326)
Vehicle maximum load on the tire (page 326)
VIN (Vehicle I
dentification N
umber)
The number set by the manufacturer
and placed on the body to uniquely
identify each vehicle produced.

444 IndexAdjusting sound functions 199
Adjusting the volume 199
Air bags 61Children 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 399 Air recirculation mode 189
Activating 189Climate control 177
Deactivating 190 Climate control 178
Air vents, rear passenger compartment Adjustable 194Climate control 180
Air volume Adjusting 187Climate 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) 437 Anti-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

446 IndexBoltsFor spare wheel 376
Brake Indicator lamp 25
Brake assist system (BAS) 437
Brake fluid 290, 428 Checking 290
Message in display 358
Brake lamp bulbs 385
Brake pads Message in display 358
Brakes 278 Warning lamp 341
Break-in period 276
Bulbs, replacing 384 Additional turn signals 385
Brake lamps 385
Fog lamps 385
Front lamps 385
High beam 385
High beam flasher 385
License plate lamps 385, 392
Low beam 385
Parking lamps 385, 388, 390
Rear fog lamp 385, 390
Rear lamps 385 Side marker lamp 391
Side marker lamps 385, 390
Standing lamps 385, 388, 390
Tail lamp assemblies 385
Tail lamp unit 390
Turn signal lamps 385
Button Audio system 198
C
CAC (Customer Assistance Center) 437
Calling up Range (distance to empty) 152
Service indicator 331
CAN system 437
Capacities Fuels, coolants, lubricants, etc. 426
Cargo compartment Lighting 118
Tie-down rings 253
Cargo tie-down rings 253
Catalytic converter 285
CD changer* 213
CD changer* operation 215
CD player
Operating 131
CD* operation 213 Center console 27
Front passenger front air bag off indica-tor lamp 27, 76, 345
Lower part 28
Upper part 27
Centigrade Setting temperature units 137
Central locking Automatic 97
From inside 98
Switch 98
Switching on/off (control system) 148
Unlocking from inside 98
Central locking switch 98
Changing CDs 213
Key setting 148
Charcoal filter 191 Activating 191
Deactivating 192
Charging Vehicle battery 402
CHECK ENGINE malfunction indicator lamp 342