Mercedes Benz 2004 c 320 Manual De Usuario

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Operation
Engine compartment
Coolant level
The engine coolant is a mixture of water 
and anticorrosion/antifreeze. To check 
the coolant level, the vehicle must be 
parked on level ground and the engine 
must be cool.
The coolant expansion tank is located on 
the passenger side of the engine compart-
ment. 
1 Coolant expansion tank
Using a rag, turn cap slowly approxi-
mately one half turn to the left to 
release any excess pressure.
Continue turning the cap to the left and 
remove it.
The coolant level is correct if the level 
for cold coolant: reaches the black 
top part of the reservoir
for warm coolant: is approx. 0.6 in 
(1.5 cm) higher
Add coolant as required.
Replace and tighten cap.
For more information on coolant, see 
“Coolants” (
page 356).
Warning!
G
In order to avoid any 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 indi-
cates 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 the cap 
approximately
1
/
2
 turn to relieve excess 
pressure. If opened immediately, scald-
ing 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.