coolant temperature MERCEDES-BENZ C-CLASS 2002 User Guide

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Malfunction and warning messages
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COOLANT (coolant temperature)
* C = Category, see page 290
1 This may indicate that the poly-V-belt has broken. Should this condition occur, the poly-V-belt must be replaced before continuing
to operate the vehicle. Otherwise, the engine will overheat due to
an inoperative water pump which may result in damage to the
engine. Do not continue to drive the vehicle with this message
displayed. Doing so could result in serious engine damage that is
not covered by the Mercedes-Benz Limited Warranty.
2 The cooling fan for the coolant is faulty. Observe the coolant temperature gauge. See page 137
During severe operating conditions and stop-and-go city
traffic, the coolant temperature may rise close to 120
°C.
The engine should not be operated with the coolant
temperature above 120
°C. Doing so may cause serious
engine damage which is not covered by the
Mercedes-Benz Limited Warranty.
Line 1 Line 2C*
COOLANT STOP, ENGINE OFF!
1
1
COOLANT VISIT WORKSHOP!
2
2
Wa r n i n g !
Driving when your engine is badly overheated can
cause some fluids which may have leaked into the
engine compartment to catch fire. You could be
seriously burned.Steam from an overheated engine can cause serious
burns and can occur just by opening the engine
hood. Stay away from the engine if you see or hear
steam coming from it.Turn off the engine, get out of the vehicle and do
not stand near the vehicle until it cools down.
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Engine compartment
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Hood
Wa r n i n g !
To help prevent personal injury, stay clear of
moving parts when the hood is open and the engine
is running. Be sure the hood is properly closed
before driving. When closing hood, use extreme
caution not to catch hands or fingers.The radiator fan may continue to run for
approximately 30 seconds or even restart after the
engine has been turned off. Stay clear from fan
blades.If you see flames or smoke coming from the engine
compartment, or if the coolant temperature gauge
indicates that the engine is overheated, do not open
the hood. Move away from vehicle and do not open
the hood until the engine has cooled. If necessary,
call a fire department.
The engine is equipped with a transistorized
ignition system. Because of the high voltage it is
dangerous to touch any components (ignition coils,
spark plug sockets, diagnostic socket) of the
ignition system
• with the engine running,
• while starting the engine,
• if ignition is “on” and the engine is turned manually.
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Engine compartment
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Coolant level
1 Coolant expansion tank
To check the coolant level, the vehicle must be parked
on level ground an d the engine stopped.
Check coolant level only when coolant is cold.
The coolant level should reach the black top part of the
reservoir.
See page 381 for antifreeze / anticorrosion mixture. Adding coolant
If coolant has to be added, a 50/50 mixture of water and
MB anticorrosion / antifreeze should be added.
Wa r n i n g !
• In order to avoid possibly serious burns: Use extreme caution when opening the hood if
there are any signs of steam or coolant leaking
from the cooling system, or if the coolant
temperature gauge indicates that the coolant is
overheated.• Do not remove pressure cap on coolant
reservoir if engine temperature is above 194
°F
(90
°C). Allow engine to cool down before
removing cap. The coolant reservoir contains
hot fluid and is under pressure.
• Using a rag, slowly open cap approximately
1/2 turn to relieve excess pressure. If opened
immediately, scalding hot fluid and steam will
be blown out under pressure.• Do not spill antifreeze on hot engine parts. Antifreeze contains ethylene glycol which may
burn if it comes into contact with hot engine
parts.
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Fuels, coolants, lubricants etc. - capacities
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Fuels, coolants, lubricants etc. - capacities
Vehicle components and their respective lubricants must
match. Therefore use only brands tested and recommended
by us. Please refer to the Factory Approved Service Products pamphlet, or inquire at your Mercedes-Benz Center.
Capacity Fuels, coolants, lubricants etc.
Engine with oil filter 7.4 US qt (7.0 l) Recommended engine oils
Automatic transmission 8.5 US qt (8.0 l) Automatic transmission fluid
Rear axle 1.2 US qt (1.1 l) Hypoid gear oil SAE 85 W 90
Power steering approx. 1.1 US qt (1.0 l) MB Power steering fluid
Front wheel hubs approx. 2.1 oz (60 g) each High temperature roller bearing grease
Brake system approx. 0.5 US qt (0.5 l) MB Brake fluid (DOT 4+)
Cooling system approx. 6.4 US qt (6.0 l) MB Anticorrosion / antifreeze
Fuel tank
including a reserve of 16.4 US gal (62.0 l)
2.1 US gal (8.0 l)Premium unleaded gasoline: Posted Octane 91
(Avg. of 96 RON / 86 MON)
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Fuels, coolants, lubricants etc. - capacities
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Air conditioner system R-134a refrigerant and special PAG lubricant (Never R-12)
Windshield washer and
headlamp cleaning system Vehicles 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 r atios, see
page 320.
Capacity Fuels, coolants, lubricants etc.
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Fuels, coolants, lubricants etc. - capacities
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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
additives, carbon deposits can build up especially on the
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
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Index
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Index
Coolant temperature gauge .......................................... 137
Cruise control ................................................................. 268
Cup holder ...................................................................... 210
DDashboard ......................................................................... 22
Door control panel ........................................................... 20
Drive sensibly - Save Fuel ............................................ 257EEasy-entry/exit feature ................................................... 47
Electronic key ................................................................... 29
Electronic main key
Changing batteries ................................................... 351
Synchronizing remote control ................................ 353
Electronic stability program (ESP).............................. 274
Emergency call See Tele Aid ............................................................... 228
Emergency engine shut-down ..................................... 353
Emergency operation of sliding/pop-up roof ............ 354
Emergency tensioning retractor (ETR)......................... 71
Emergency unlocking in case of accident ................... 40
Engine oil consumption ................................................ 142 Engine oil level indicator .............................................. 141
Express opening and closing (power windows) ........ 197
Exterior lamp switch ..................................................... 143
Daytime running lamp mode .................................. 145
Exterior lamps ............................................................... 345 Additional turn signals on the exterior mirror ... 350
Bulbs for high and low beam ................................. 347
Headlamp assembly ................................................. 346
High mounted stop lamp ......................................... 350
License plate lamps ................................................. 349
Parking and standing lamp .................................... 347
Replacing bulbs ........................................................ 345
Side marker lamp, front .......................................... 350
Taillamp assemblies ................................................ 348
Turn signal lamp ...................................................... 347
Exterior mirror adjustment ............................................ 90
Exterior mirror, front passenger side, parking position .......................................................... 91
FFirst aid kit ...................................................................... 310
Flat tire
See Changing wheels .............................................. 327
Flexible service system (FSS) ...................................... 138
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Index
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Index
Center console ............................................................. 24
Dashboard .................................................................... 22
Door control panel ...................................................... 20
Overhead control panel.............................................. 21
Interior............................................................................. 206
Interior lighting.............................................................. 203
JJack................................................................................... 323
Jump starting .................................................................. 338KKeys, changing battery.................................................. 351LLamps, exterior Side marker lamp, front ........................................... 350
Layout of poly-V-belt drive............................................ 371
Lighter ............................................................................. 213
Loading instructions (Vehicle with enlarged cargo area) ........................ 218
Locator lighting .............................................................. 147 Locking the vehicle with remote control...................... 33
Low beams
See Exterior lamp switch ......................................... 143
Luggage cover – removal and installation ................. 217
MMaintenance .................................................................. 227
Malfunction/warning message memory .................... 119
Manual seat................................................................. 51, 55
Manual transmission.................................................... 244
Mechanical key................................................................. 35
Memory function.............................................................. 93
Mirror, exterior, parking position, front passenger side ................................................... 91
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
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