Checking Coolant Level; Adding Coolant - Mercedes-Benz 300 SD-Turbo Diesel 1985 Owner's Manual

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Checking Fuels
Federal version

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 m ust 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 tem perature.
76
Coolants
Lubricants etc.
California version

Adding Coolant

If a small amount of coolant has to be
added (due to evaporation of w ate r),
plain water can be used.
If a larger quantity of coolant has to
be added, a 50/50 m ixture of water
and anticorrosion/antifreeze should
be used.
Warning!
Do not remove pressure cap on
coolant reservoir if engine tem pera­
ture is above 90° C/194° F. Allow
engine to cool down before removing
cap. The coolant reservoir contains
hot water and is under pressure.
Using a rag, turn cap to firs t notch to
relieve excess pressure. If opened
immediately, hot scalding fluid and
steam will be blown out under
pressure.
The drain plugs fo r the cooling
system are located on the right-hand
side of the engine block and the
bottom of the radiator.

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