Checking Coolant Level; Adding Coolant - Mercedes-Benz 380 SE 1984 Owner's Manual

Checking Fuels Coolants

Checking Coolant Level

The coolant level can be checked
visually at the transparent coolant
reservoir.
To check the coolant level, the
vehicle must be parked on level
ground.
The coolant level must reach:
The marking (1, arrow) on the reser­
voir when the engine is cold.
Approx. 2 cm/0.8 in higher when the
engine is at operating temperature.
72
Lubricants etc.

Adding Coolant

If a small amount of coolant has to
be added (due to evaporation of
water), plain water can be used.
If a larger quantity of coolant has to
be added, a 50/50 mixture of water
and anti-corrosion/antifreeze should
be used.
Warning:
Do not remove pressure cap on
coolant reservoir if engine tempera­
ture is above 90° C/194° F. Allow
engine to cool down before remo­
ving cap. The coolant reservoir
contains hot water and is under
pressure.
Using a rag, turn cap to first notch to
relieve excess pressure. If opened
immediately, hot scalding fluid and
steam will be blown out under pres­
sure.
The drain plugs are situated on the
right and left side of the engine and
on the radiator bottom.