Coolant Level; Adding Coolant - Mercedes-Benz CL 55 AMG Operator's Manual

Coolant level

1 Coolant expansion tank
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.
The coolant level should reach the black top part of the
reservoir.
See page 403 for antifreeze/anticorrosion mixture.
Engine compartment
Instruments
Operation
and controls
1
Instrument
Driving
cluster display

Adding coolant

If coolant has to be added, a 50/50 mixture of water and
MB anticorrosion/antifreeze should be added.
Warning!
• In order to avoid possibly serious burns:
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 approximately 1/2
turn to relieve 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 ethylene glycol which may
burn if it comes into contact with hot engine
parts.
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