Checking Coolant Level; Adding Coolant - Mercedes-Benz 190 E 2.3 1991 Owner's Manual

1 Coolant reservoir cap
2 Marking for coolant level

Checking Coolant Level

The coolant level can be checked
visually at the transparent coolant re­
servoir.
To check the coolant level, the vehicle
must be parked on level ground.
The coolant level must reach:
The marking (2, arrow) on the reser­
voir when the engine is cold.
Approx. 1 cm (0.4 in) higher when the
engine is at operating temperature.

Adding Coolant

If coolant has to be added, a 50/50
mixture of water and MB anticorrosion/
antifreeze should be used.
Warning!
• Use extreme caution when
opening the hood if there are
any signs of steam or coolant
leaking from the cooling
system.
• Do not remove pressure cap
on coolant reservoir if engine
temperature is above 90 °C
(194°F). Allow engine to cool
down before removing cap.
The coolant reservoir contains
hot fluid and is under pres­
sure.
• Using a rag, turn cap to first
notch to relieve excess pres­
sure. If opened immediately,
hot scalding fluid and steam
will be blown out under pres­
sure possibly causing perso­
nal injury.
• Do not spill antifreeze on hot
engine parts. Antifreeze con­
tains ethylene glycol which
may burn if it comes into con­
tact with hot engine parts. You
can be seriously burned.
The drain plugs for the cooling system
are located on the right-hand side of
the engine block and at the bottom of
the radiator.
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