Checking Coolant Level; Adding Coolant - Mercedes-Benz E320 Operator's Manual

Checking Coolant Level

To check the coolant level, the vehicle
must be parked on level ground and
the engine stopped.
Check coolant level only when coolant
is cold.

Adding Coolant

If coolant has to be added, a 50/50
mixture of water and MB
anticorrosion/antifreeze should be
added.
The drain plugs for the cooling system
are located on the right side of the
engine block and at the bottom of the
radiator.
Anticorrosion/antifreeze, see
Coolants in Index.
Warning!
In order to avoid possible serious
burns or injury:
• Use extreme caution when
opening the hood if there are any
signs of steam or coolant leaking
from the cooling system, or if the
coolant temperature gauge
indicates that the coolant is
overheated.
• Do not remove pressure cap on
coolant reservoir if engine
temperature is above 194°F (90°C).
Allow engine to cool down before
removing cap. The coolant
reservoir contains hot fluid and is
under pressure.
• Using a rag, slowly open cap
1
approximately / turn to relieve
2
excess pressure. If opened
immediately, scalding hot fluid
and steam will be blown out
under pressure.
• Do not spill antifreeze on hot
engine parts. Antifreeze contains
etnylene glycol which may burn if
it comes into contact with hot
engine parts.
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