2002 MERCEDES-BENZ C320 malfunction

360 Fuel filler flap, manual release
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Fuel filler flap, manual release
Open the trunk lid and fold right-side taillamp trim
aside. Reach inside and turn the release knob (arrow)
clockwise. Open the fuel filler flap.Emergency operation of sliding / pop-up roof
The sliding / pop-up roof can be opened or closed
manually should an electrical malfunction occur.
The sliding / pop-up roof drive is located behind the
lens (1) of the interior overhead light.
Pry off the lens (1) using a screwdriver.
OM_203.book Seite 360 Donnerstag, 31. Mai 2001 11:57 11

383 Fuels, coolants, lubricants etc. - capacities
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index Engine oils
Engine oils are specifically tested for their suitability in
our engines. Therefore, use only engine oils
recommended by Mercedes-Benz. Information on
recommended brands is available at your authorized
Mercedes-Benz Center.
Please follow Service Booklet recommendations for
scheduled oil changes. Failure to do so could result in
engine damage not covered by the Mercedes-Benz
Limited Warranty.
Engine oil additives
Do not blend oil additives with engine oil. They may be
harmful to the engine operation.
Damage or malfunctions resulting from blending oil
additives are not covered by the Mercedes-Benz Limited
Warranty.Air conditioner refrigerant
R-134a (HFC) refrigerant and special PAG lubricating oil
is used in the air conditioner system.
Never use R-12 (CFC) or mineral-based lubricating oil,
otherwise damage to the system will occur.
Brake fluid
During vehicle operation, the boiling point of the brake
fluid is continuously reduced through the absorption of
moisture from the atmosphere. Under extremely hard
operating conditions, this moisture content can lead to
the formation of bubbles in the system thus reducing
the system’s efficiency.
The brake fluid must therefore be replaced every two
years, preferably in the spring.
It is recommended to use only brake fluid approved by
Mercedes-Benz. Your authorized Mercedes-Benz
Center will provide you with additional information.
OM_203.book Seite 383 Donnerstag, 31. Mai 2001 11:57 11

385 Fuels, coolants, lubricants etc. - capacities
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index Gasoline additives
A major concern among engine manufacturers is carbon
build up caused by gasoline. Mercedes-Benz
recommends the use of only quality gasoline containing
additives that prevent the build up of carbon deposits.
After an extended period of using fuels without such
ad ditives , car bon d ep osits c an bui ld up esp eci ally on t he
intake valves and in the combustion area, leading to
engine performance problems such as:
•warm-up hesitation,
•unstable idle,
•knocking / pinging,
•misfire,
•power loss.
Do not blend other specific fuel additives with fuel.
They only result in unnecessary cost, and may be
harmful to the engine operation.
Damage or malfunctions resulting from poor fuel
quality or from blending specific fuel additives are not
covered by the Mercedes-Benz Limited Warranty.Coolants
The engine coolant is a mixture of water and
anticorrosion / antifreeze, which provides:
•corrosion protection,
•freeze protection,
•boiling protection (by increasing the boiling point).
The cooling system was filled at the factory with a
coolant providing freeze protection to approximately
- 22
°F (- 30
°C) and corrosion protection.
If the antifreeze mixture is effective to - 22
°F (- 30
°C),
the boiling point of the coolant in the pressurized
cooling system is reached at approximately 266
°F
(130
°C).
The coolant solution must be used year round to provide
the necessary corrosion protection and increase in the
boil-over protection. You should have it replaced every
3years.
To provide the important corrosion protection, the
solution must be at least 45% anticorrosion / antifreeze
(equals a freeze protection to approximately - 22
°F
(- 30
°C). If you use a solution that is more than 55%
anticorrosion /antifreeze (freeze protection to
approximately - 49
°F (- 45
°C), the engine temperature
OM_203.book Seite 385 Donnerstag, 31. Mai 2001 11:57 11

389 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
Index
AAdding engine oil .......................................................... 321
Airbags .............................................................................. 73
ANTILOCK BRAKE SYSTEM
Malfunction and warning message ........................ 297
Antilock brake system (ABS) ....................................... 276
Antitheft alarm system ................................................... 46
Ashtrays .......................................................................... 213
Audio system
Button and soft key operation ..................................176
Cassette mode ........................................................... 182
CD changer ................................................................ 187
CD mode ..................................................................... 186
Operating and display elements ............................. 174
Operating safety ........................................................ 173
Operation ....................................................................176
Operation Audio and telephone .............................. 173
Radio mode ................................................................ 179
Telephone operation ................................................. 190Audio systems ................................................................. 108
Cassette player .......................................................... 110
CD Player .................................................................... 109
Radio ........................................................................... 108
Automatic central locking .............................................. 40
Automatic climate control ............................................ 160
Activated charcoal filter ........................................... 168
Adjustable air outlets,
rear passenger compartment ............................. 172
Air recirculation ........................................................ 167
Air volume, manual .................................................. 165
Basic setting ............................................................... 164
Defrosting ................................................................... 166
Display and controls ................................................. 162
Dust filter ................................................................... 164
Economy mode .......................................................... 169
Front center console
storage compartment ventilation ....................... 171
Residual engine heat utilization ............................. 169
Special settings ......................................................... 165
Windows fogged up on the outside ........................ 166
Automatic transmission ................................................251
Fluid level .................................................................. 322
Transmission selector lever,
manually unlocking ............................................ 350
OM_203.book Seite 389 Donnerstag, 31. Mai 2001 11:57 11

394 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
MMaintenance ...................................................................233
Malfunction/warning message memory .....................119
Manual seat ............................................................... 52, 56
Manual transmission ....................................................249
Mechanical key ......................................................... 28, 36
Memory function ............................................................. 95
Mirror, exterior,
parking position, front passenger side ................... 92
Multicontour seat ............................................................ 57
Multifunction display .................................................... 102
Coolant temperature ................................................. 106
Engine oil level indicator ......................................... 106
FSS .............................................................................. 106
Individual settings .................................................... 121
Tire inflation pressure monitor .............................. 106
Trip and main odometer .......................................... 106
Vehicle speed ............................................................. 106
Multifunction steering wheel ...................................... 102
NNavigation system .......................................................... 116
Night security illumination .......................................... 146OOn-board diagnostic system ........................................ 286
Overhead control panel ................................................... 21PPanic button ......................................................................36
Parcel net in front passenger footwell ........................ 216
Parking brake ................................................................ 260
Power windows ............................................................... 197
Blocking of rear door window operation ............... 199
Express opening and closing .................................. 198
Opening and closing ...................................................35
Synchronizing power windows ............................... 199
Problems with your vehicle ............................................ 14
Product information .......................................................... 7
OM_203.book Seite 394 Donnerstag, 31. Mai 2001 11:57 11

396 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
Starter switch .................................................................246
Starting and turning off the engine ............................248
STEER. WHEEL ADJUST. -
malfunction and warning messages ...................... 312
Steering lock
See starter switch ......................................................246
Steering wheel
Easy-entry/exit feature .............................................. 48
Steering wheel adjustment
electrical ....................................................................... 89
manual .......................................................................... 88
Storage compartments and armrests .......................... 207
Storing mirror positions ................................................. 91
Storing seat positions ...................................................... 51
Stowing things in the vehicle ...................................... 314
Sun visors .......................................................................206
Supplemental Restraint System (SRS) ......................... 71
TTechnical data ................................................................ 377
Tele Aid ........................................................................... 234
Emergency calls ........................................................ 235
Information ................................................................ 239
Initiating an emergency call ...................................237Roadside Assistance ................................................ 238
Telephone .........................................................................111
Incoming call ............................................................. 115
Redialing .................................................................... 113
Telephone book ..........................................................111
Telephone, general ........................................................ 225
Telephones and two-way radios .................................. 232
Telescoping steering column -
malfunction and warning messages ...................... 312
The first 1 000 miles (1 500 km) ............................... 233
Tire inflation pressure .................................................. 341
TIREFIT ...................................................................326, 337
Sealing tire with TIREFIT ........................................ 338
Tool kit ............................................................................ 325
Tool kit (C 32 AMG only) ............................................. 326
Tow-away alarm ................................................................47
Towing the vehicle ........................................................ 347
Transmission selector lever,
manually unlocking ................................................. 350
Trip computer ................................................................. 117
Trunk ................................................................................. 41
Opening ........................................................................ 34
Release switch ............................................................. 45
Trunk lamp ....................................................................... 45
OM_203.book Seite 396 Donnerstag, 31. Mai 2001 11:57 11

397 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex Trunk lid
Emergency release ..................................................... 44
Trunk lid emergency release ......................................... 43
UUnlocking the vehicle with remote control ................. 33VVanity mirrors ................................................................ 206
Vehicle keys ...................................................................... 28
Vehicle tools .................................................................... 325
Vehicle tools (C 32 AMG only) ..................................... 326
WWa r n i n g l a m p s
See Malfunction and indicator lamps in the
instrument cluster .............................................. 286
What you should know at the gas station ................. 282
Wheels ............................................................................ 328
Where to find it ................................................................ 13
Window curtain airbag .................................................... 76
Windows
See Power windows ................................................... 197
Windshield washer system .......................................... 323
Wiper blade
Replacing insert ....................................................... 362
Wiper operation
See Combination switch .......................................... 148
OM_203.book Seite 397 Donnerstag, 31. Mai 2001 11:57 11