2001 MERCEDES-BENZ C320 coolant temperature

356 Fuels, coolants, lubricants etc. - capacities
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
Air conditioner system R-134a refrigerant and special PAG lubricant
(Never R-12)
Windshield washer and
headlamp cleaning systemVehicles without headlamp
cleaning system:
Capacity approx. 3.2 US qt
(3.0 l)
Vehicles with headlamp
cleaning system:
Capacity approx. 6.4 US qt
(6.0 l)MB Windshield washer concentrate1
1 Use MB Windshield Washer Concentrate “S” and water for temperatures above freezing or MB Windshield Washer Concentrate “S” and
commercially available premixed windshield washer solvent / antifreeze for temperatures below freezing. Follow suggested mixing ratios, see
page 303.
Capacity Fuels, coolants, lubricants etc.

359 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

365 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
BBabySmart
TM airbag deactivation system ..................... 62
Battery ............................................................................. 316
Block heater ....................................................................252
Brake assist system (BAS) ............................................257
CCellular telephone ......................................................... 210
Center console .................................................................. 18
Central locking switch .................................................... 33
Central locking system ................................................... 25
Automatic central locking ......................................... 34
Central locking switch ............................................... 33
Choosing global or selective mode ........................... 27
Doors ............................................................................. 31
General notes ............................................................... 24
Locking and unlocking with remote control .......... 27
Mechanical keys .......................................................... 30
Obtaining replacement keys ..................................... 23
Summer opening/convenience feature ................... 29
Vehicle keys ................................................................. 22
Check regularly and before a long trip ......................266
Checking engine oil level ............................................. 300Climate control ............................................................... 138
Adjustable air outlets,
rear passenger compartment ............................. 159
Air recirculation ........................................................ 144
Basic setting ............................................................... 142
Defrosting ................................................................... 143
Display and controls ................................................. 140
Dust filter ................................................................... 141
Economy mode .......................................................... 145
Front center console storage
compartment ventilation ..................................... 158
Residual engine heat utilization ............................. 145
Special settings ......................................................... 142
Windows fogged up on the inside .......................... 143
Windows fogged up on the outside ........................ 144
COMAND, radio, telephone and two-way radio ......... 218
Combination switch ....................................................... 134
Control and operation of radio transmitters .............. 218
Coolant level ...................................................................301
Coolant temperature gauge ..........................................124
Cruise control ................................................................ 254
Cup holder ....................................................................... 197

368 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
MMaintenance ................................................................... 219
Malfunction/warning message memory .................... 109
Manual seat ............................................................... 45, 48
Manual transmission ....................................................233
Memory function ............................................................. 85
Mirror, exterior, parking position,
front passenger side ................................................... 82
Multicontour seat ............................................................ 49
Multifunction display ...................................................... 92
Coolant temperature ................................................... 96
Engine oil level indicator ........................................... 96
FSS ................................................................................ 96
Individual settings ..................................................... 111
Tire inflation pressure monitor ................................ 96
Trip and main odometer ............................................ 96
Vehicle speed ............................................................... 96
Multifunction steering wheel ........................................ 92NNavigation system .......................................................... 106
Night security illumination ......................................... 132
OOn-board diagnostic system ........................................ 268
Overhead control panel ................................................... 15PPanic button ......................................................................30
Parcel net in front passenger footwell ....................... 202
Parking brake ................................................................ 243
Power windows ............................................................... 184
Blocking of rear door window operation ............... 186
Express opening and closing .................................. 185
Opening and closing ...................................................29
Synchronizing power windows ............................... 186
Problems with your vehicle .............................................. 8
Product information .......................................................... 1RRain sensor ..................................................................... 135
Rear passenger compartment
adjustable air outlets ................................................ 159
Rear window defroster .................................................. 157
Rear window sunshade ................................................. 191