While  the  motor  is  cold,  the  coolant  level
must 
always be between the “F (FULL)” and
the “L (LOW)” marks.
FULL
LOW 5. Refit 
the electric motor unit room lid and the
luggage floor carpet by following the remov-
al procedures in reverse.
Hot water heater fluid
A transparent reserve tank (A) is located in the bon-
net room.
The  coolant  level  in  this  tank  should  be  kept  be-
tween the “FULL” and “LOW” marks when meas-
ured while the electric motor is cold.
FULL
LOW To add coolant
The 
cooling system is a closed system and normal-
ly  the  loss  of  coolant  should  be  very  slight.  A  no-
ticeable drop in the coolant level could indicate leak-
age.  If  this  occurs,  we  recommend  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 reserve tank cap (E) and
add coolant. WARNING
l Do 
 not  open  the  reserve  tank  cap  (E)
while  it  is  hot.  The  coolant  system  is  un-
der  pressure  and  any  hot  coolant  escap-
ing could cause severe burns.
Anti-freeze
The 
 coolant contains an ethylene glycol anti-corro-
sion  agent.  Some  parts  of  the  electric  motor  are
cast aluminium alloy, and periodic changing of the
electric motor coolant is necessary to prevent corro-
sion of these parts.
 
Use  “MITSUBISHI  MOTORS  GENUINE  SUPER
LONG  LIFE  COOLANT  PREMIUM”  or  equiva-
lent*.
*:  similar  high  quality  ethylene  glycol  based  non-
silicate, non-amine, non-nitrate and non-borate cool-
ant with long life hybrid organic acid technology
 
MITSUBISHI  MOTORS  GENUINE  Coolant  has
excellent  protection  against  corrosion  and  rust  for-
mation  of  all  metals  including  aluminium  and  can
avoid blockages in the radiator, heater, etc. Because  of  the  necessity  of  this  anti-corrosion
agent, 
the  coolant  must  not  be  replaced  with  plain
water  even  in  summer.  The  required  concentration
of anti-freeze differs depending on the expected am-
bient temperature.
 
Above -35 °C: 50 % concentration of anti-freeze
Below -35 °C: 60 % concentration of anti-freeze CAUTION
l
Do 
 not  use  alcohol  or  methanol  anti-
freeze  or  any  engine  coolants  mixed  with
alcohol  or  methanol  anti-freeze.  The  use
of an improper anti-freeze can cause cor-
rosion of the aluminium components.
l Do not use water to adjust the concentra-
tion of coolant.
l Concentrations  exceeding  60  %  will  re-
sult  in  a  reduction  of  both  the  anti-freeze
and cooling performance.
l Do not top up with water only.
Water  by  itself  reduces  the  rust-protec-
tive  and  anti-freeze  qualities  of  the  cool-
ant  and  has  a  lower  boiling  point.  It  can
also cause damage to the cooling system if
it should freeze. Do not use tapwater, as it
can cause corrosion and rust formation.
During cold weather
If 
 the  temperatures  in  your  area  drop  below  freez-
ing, there is the danger that the coolant in the elec-
tric  motor,  on  board  charger/DC-DC  converter  or
radiator  could  freeze  and  cause  severe  damage  to
the  electric  motor,  on  board  charger/DC-DC  con-
verter  and/or  radiator.  Add  a  sufficient  amount  of
anti-freeze to the coolant to prevent it from freezing. Vehicle care and Maintenance
8-10
8  
OHAE13E1