Coolant replacement, Page 11 – MAHLE RTI MCX-2F (Rev A) User Manual
Page 12
Page 11
Adapters
Green Hose
TE
ST
& O
VE
RFL
O W
LOW
ER
RA
DIA
TO
R
EM
PT
Y W
AS
TE
TA
NK
EM
PT
Y W
AS
TE
TAN
K
FIL
L RA
DIA
TO
R &
O
VER
FLO
W
EX
CH
ANG
E C
OOL
ANT
OR
LO
WE
R R
AD
IAT
O R
& O
VER
FLO
W
SY
STE
M V
AC
UU
M
O FF
O F
F
& O
VE
RFL
O W
FILL
RA
D IA
TO
R
EXC
HA
NG
E C
OO
L A
NT
SY
STE
M P
RE
SSU
RE
O FF
Radiator
Black Hose
Radiator
Hose
EM
PTY
W
AS
TE
TAN
K
OFF
SY
STE
M P
RE
SS
UR
E
EX
CH
AN
GE
CO
OLA
NT
TES
T
FIL
L R
AD
IAT
OR
& O
VE
RFL
OW
EM
PTY
W
AS
TE
TAN
K
LO
WE
R R
AD
IAT
OR
& O
VE
RFL
OW
Overflow
Water
Pump
Step
Adapter
Hose
OFF
OF
F
SY
STE
M V
AC
UU
M
& O
VE
RF
LO
W
LO
WE
R R
AD
IAT
OR
EX
CH
AN
GE
CO
OL
AN
T O
R
FIL
L R
AD
IAT
OR
& O
VE
RF
LO
W
Core
Engine
Block
Heater
If the pump is running and the new coolant level does not go down:
Try reversing the connections of the green and black hoses.
COOLANT REPLACEMENT
Once the MCX-2F is connected as described on the preceding pages it is ready to
replace the old coolant with new coolant.
Scales for the tank levels are
graduated in quarts and liters
1 Gallon = 4 Quarts.
1. Determine the capacity and type of coolant for the vehicle cooling system. Refer to
the vehicle Owner’s Manual.
2. Make sure the New Coolant Tank (left slot on front) is filled with the correct coolant
and at a level higher than the amount required to fill the coolant system to full
capacity.
3. Check the Waste Tank (right slot on front) to make sure the level is low enough to
accept the full capacity of coolant in the vehicle cooling system.
4. Turn both valves on front of MCX-2F to EXCHANGE.
5. Turn control valve to EXCHANGE COOLANT.
6. Press the top of EXCHANGE COOLANT OR FILL RADIATOR & OVERFLOW
selector switch to turn on the pump.
7. Watch the level of coolant as it lowers in the New Coolant Tank. Press the bottom
of the EXCHANGE COOLANT OR FILL RADIATOR & OVERFLOW selector switch
when it reaches the correct level. This will stop the transfer of coolant.