2005 MERCEDES-BENZ C COUPE sensor

364 Practical hintsWhat to do if …When the message
At next gas station
add 1.0 qt engine oil
(Canada:
1.0 l
)
appears while the engine is running and at
operating temperature, the engine oil level
has dropped to approximately the mini-
mum 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 symbol
Display messages
Possible cause
Possible solution
:
Engine oil level
Visit workshop.
The engine oil has dropped to a critical
level.

Check the engine oil level
(page 294) and add oil as required
(page 293).

If you must add engine oil frequently,
have the engine checked for possible
leaks.
Oil sensor malfunction
Visit workshop.
The measuring system is malfunctioning.

Have the measuring system checked
by an authorized Mercedes-Benz
Center.!The engine oil level warnings should
not be ignored. Extended driving with
the symbol displayed could result in
serious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.

367 Practical hints
What to do if …
Display symbol
Display message
Possible cause
Possible solution
.
High beam left
The left high beam lamp is
malfunctioning.

Replace the bulb as soon as possible.
High beam right
The right high beam lamp is
malfunctioning.

Replace the bulb as soon as possible.
License plate lamp,
left
The left license plate lamp is
malfunctioning.

Replace the bulb as soon as possible.
License plate lamp,
right
The right license plate lamp is
malfunctioning.

Replace the bulb as soon as possible.
Light sensor
Drive to workshop
The lamp sensor is malfunctioning.
The headlamps switch on automatically.

In the control system, set lamp
operation to manual (
page 133).

Switch on headlamps using the
exterior lamp switch (
page 51).

Visit an authorized Mercedes-Benz
Center as soon as possible.

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.

441 Technical terms
Shift lock
When the vehicle is parked, this lock
prevents the gear selector lever from
being moved out of positionP 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.

454 IndexInstrument cluster 24, 119, 439
Cleaning 337
Coolant temperature display 120
Illumination 119
Lamps in 343–344
Multifunction display 123
Outside temperature indicator 121
Selecting language 138
Instrument lighting 119
Instruments and controls see Cockpit
Interior lighting 117
Activating automatic control 117
Deactivating automatic control 117
Delayed shut-off (Control
system) 147
Manual operation 118
Interior rear view mirror
Adjusting 42
Antiglare (manual) 167
Interior storage spaces
Armrest 255
Cup holders 256
Intermittent wiping 54J
Jack 373
Jump starting 404
K
Key dependency memory
Settings 149
Key positions in starter switch 33
Key, mechanical 377
Key, SmartKey
Battery check lamp 92
Checking the batteries 93
Factory setting 92
Global locking 92
Global unlocking 92
Loss of 94
Messages in display 365
Positions in starter switch 33
Remote control 90
Restoring to factory setting 93
Selective setting 92
Starting the engine 48, 49
Unlocking with 32
Kickdown 165, 439
Kilometers/miles in speedometer 137
Kilopascal 324
Km/h or mph in speedometer 137L
Labels, identification 416
Lamp bulbs, exterior 384
Lamps, exterior
Front 385
Light sensor 367
Messages in display 366–370
Rear 385
Lamps, indicator and warning
ABS 340
Air bag Off 66
Battery (SmartKey) 92
Brake 25
Brakes 341
CHECK ENGINE 342
Engine diagnostics 342, 344
ESP 343
Fuel reserve 344
Instrument cluster 343–344
Low beam 25
Seat belts 344
Service indicator 330
SRS 61, 344
Language
Multifunction display 138
Setting 138

455 Index
LATCH child seat anchors 78
Folding back 78, 79
Layout of poly-V-belt drive 417
Leather upholstery
Cleaning 338
License plate lamps
Messages in display 367
Replacing bulbs 385, 392
Light alloy wheels
Cleaning 336
Technical data 420
Light sensor 367
Lighter see Cigarette lighter
Lighting 110
Automatic headlamp mode 111
Combination switch 114
Daytime running lamp mode 112
Exterior lamp switch 110
Front fog lamps 113
High beams 114
Instrument cluster illumination 119
Instruments 119
Interior 117
Interior delayed shut-off (Control
system) 147
Locator lighting 112Low beam 110
Low beam, indicator lamp 25
Manual headlamp mode 111
Night security illumination 112
Parking lamps 110
Rear fog lamp 113
Settings (control system) 144
Limiting the gear range 161
Limp Home Mode 166
Loading 250
Cargo tie-down rings 253
Instructions 252
Roof rack* 250
Split rear bench seat 250
Loading terminology 323
Loading the vehicle 303
Locator lighting 112
Setting 145
Lock buttons 439
Locking 56, 90
Automatic while driving 97
Centrally from inside 98
Fuel filler flap 288
Global, SmartKey 92
Vehicle in an emergency 379
Loss of keys 94Loss of Service and Warranty Information
Booklet 415
Low beam headlamps
Messages in display 368
Replacing bulbs 385, 387
Lowering
Vehicle 400
Lubricants
Technical data 426
Luggage compartment
Closing 95
Closing the lid 95
Opening from inside vehicle 95
Trunk lid emergency release 96
Luggage cover 252