Mitsubishi MOTORS OUTLANDER PHEV 2021, Owner'S Manual

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Engine coolant/Plug-in hybrid EV system coolant
11-6 Maintenance
11
E01000503772
A transparent engine coolant reserve tank (A)
and EV cooling system reserve tank (B) is
located in the engine compartment.
The coolant level in this tank should be kept
between the “LOW” and “FULL” marks
when measured while the engine and the
plug-in hybrid EV system are cold.
The cooling system is a closed system and
normally the loss of coolant should be very
slight. A noticeable drop in the coolant level
could indicate leakage. If this occurs, we rec-
ommend you to have the system checked as
soon as possible.
If the level should drop below the “LOW”
level on the reserve tank, open the lid and add
coolant.
Also, if the reserve tank is completely empty,
remove the radiator cap (C) or the reserve
tank cap (D) and add coolant until the level
reaches the filler neck.
The engine coolant and the plug-in hybrid EV
system coolant contains an ethylene glycol
anti-corrosion agent. Some parts of the
engine and the plug-in hybrid EV system are
cast aluminium alloy, and periodic changing
of the engine coolant and the plug-in hybrid
EV system coolant are necessary to prevent
corrosion of these parts.
NOTE
 Use of additives is not recommended since
they may reduce the effectiveness of addi-
tives already included in the engine oil. It
may result in failure of the mechanical
assembly.
Engine coolant/Plug-in
hybrid EV system coolant
To check the coolant level
To add coolant
FULL
LOW
FULL
LOW
WARNING
 Do not open the radiator cap (C) and the
reserve tank cap (D) while the engine and
the plug-in hybrid EV system are hot. The
coolant system is under pressure and any
hot coolant escaping could cause severe
burns.
Anti-freeze
Use “MITSUBISHI MOTORS GENUINE
SUPER LONG LIFE COOLANT PRE-
MIUM” or equivalent*.