Mersedes-Benz 280 SE 1978, Owner'S Manual

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Checking Fuels Coolants Lubricants etc.
Replenishing Coolant
Open coolant reservoir cap only
when the coolant tem perature is
below 194° F (90° C). First turn
cap to notch number I to relieve
excess pressure. If opened imme­
diately, hot coolant and vapour
would be ejected.
To replenish coolant, the car must
be on level ground.
Pour cold w ater into a hot engine
only if it is running. Both hot and
cold engines can be readily filled
up with hot water.
For antifreeze brands refer to
“ Fuels, Coolants, Lubricants, etc.".
280 SE
The coolant level must reach:
• when the coolant is cold to the
visible m arking in the radiator
fille r neck,
• when the coolant is hot to about
0.4 in. (1 cm) above the marking.
The drain plugs are situated on
the R-H engine side and on the
radiator bottom.
The coolant reservoir with the fille r
neck is separated from the radiator
and located in fron t of the battery.
The coolant level must reach:
• to m arking (1) on the reservoir
if the coolant is cold,
• about 0.8 in. (2 cm) higher if the
coolant is hot.
The drain plugs are on the right
and left side of the engine and
on the radiator bottom.
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