Mercedes-Benz 300 SD Turbo Diesel 1982, Owner'S Manual

Page: 71 / 97

Checking Fuels Coolants Lubricants etc.
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.
Replenishing Coolant
If a small amount of coolant has to be
added (due to evaporation of water),
plain water can be added.
If a larger quantity of co o la nt has to
be added, a 50/50 m ixture o f water
and antifreeze should be used.
Caution:
Do not remove pressure cap on
coolant reservoir if engine tem pera­
ture is above 90° C /1 94° F. Allow
engine to cool down before rem oving
cap. The coolant reservoir contains
hot water and is under pressure.
First turn cap to firs t n o tch to relieve
excess pressure using a rag. If
opened immediately, hot scalding
fluid and steam will be blow n out
under pressure.
The drain plugs fo r the cooling
system are located on the right-hand
side of the engine b lo ck and the
bottom of the radiator.
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