Mercedes-Benz 300 SD-Turbo Diesel 1985, Owner'S Manual

Page: 78 / 105

Checking Fuels Coolants Lubricants etc.
Federal version
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.
>
Checking Coolant Level
The coolant level can be checked
visually at the transparent coolant
reservoir.
To check the coolant level, the vehicle
m ust 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.
Adding Coolant
If a small am ount of coolant has to be
added (due to evaporation of w a te 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.
California version
76