Mercedes Benz 2008 c300 Manuale Utente

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 Cap
2 Coolant expansion tank
3 Fluid level bridge

왘

Using a rag, turn cap

1 slowly approx-

imately a half-turn counterclockwise to 
release any excess pressure.

왘

Continue turning the cap

1 counter-

clockwise and remove it.

The coolant level is correct if the level

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for cold coolant: reaches the white 
marking (plastic bridge)

3 inside the 

coolant expansion tank

2

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for warm coolant: is approximately 
0.6 in (1.5 cm) higher

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Add coolant as required.

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Replace and tighten cap

1.

For more information on coolant, see the 
“Technical data” section (

G

In order to avoid potentially serious burns:

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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.

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Do not remove pressure cap on coolant 
reservoir if coolant temperature is 
above 158°F (70°C). Allow engine to 
cool down before removing cap. The 
coolant reservoir contains hot fluid and 
is under pressure.

앫

Using a rag, slowly open the cap approx-
imately a half-turn to relieve excess 
pressure. If opened immediately, scald-
ing hot fluid and steam will be blown out 
under pressure.

앫

Do not spill antifreeze on hot engine 
parts. Antifreeze contains ethylene gly-
col which may burn if it comes into con-
tact with hot engine parts.