Mercedes-Benz 2004 E 320 Automobile User Manual


 
286
Operation
Engine compartment
1 Coolant expansion tank
̈ Using a rag, turn the cap slowly approx-
imately one half turn to the left to re-
lease any excess pressure.
̈ Continue turning the cap to the left and
remove it.
The coolant level is correct if the level:
ț for cold coolant: reaches the black
top part of the reservoir
ț for warm coolant: is approximately
0.6 in (1.5 cm) higher
̈ Add coolant as required.
̈ Replace and tighten cap.
More information on coolant can be found
in the “Technical data” section
(
page 405).
Warning! G
In order to avoid any possibly serious burns:
ț 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.
ț 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.
ț Using a rag, slowly open the cap approx-
imately
1
/
2
turn to relieve excess pres-
sure. If opened immediately, scalding
hot fluid and steam will be blown out un-
der pressure.
ț 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.