Coolant replacement – MAHLE RTI MCX-2F User Manual
Page 12
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Page 11
If the pump is running and the new coolant level does not go down:
Try reversing the connections of the green and black hoses.
FIL
L R
AD
IAT
OR
& O
VE
RFL
OW
EXC
HA
NG
E C
OO
LA
NT O
R
OFF
EM
PTY
W
AS
TE
TA
NK
OF
F
& O
VER
FLO
W
FIL
L R
AD
IAT
OR
EX
CH
AN
GE
CO
OL
AN
T
OFF
EM
PT
Y W
AS
TE
TA
NK
Black Hose
Green Hose
OF
F
SY
ST
EM
P
RE
SS
URE
EX
CHA
NGE
CO
OLA
NT
FIL
L RA
DIA
TO
R
& O
VER
FLO
W
OFF
OFF
SYS
TE
M V
ACU
UM
& O
VER
FL
OW
LO
WER
R
AD
IATO
R
EX
CH
ANG
E C
OO
L A
NT
OR
FILL
RAD
IAT
OR
& O
VE
RFL
OW
EM
PT
Y W
AST
E TA
NK
EM
PTY
WA
ST
E T
AN
K
L O
WE
R R
ADI
AT
OR
& O
VE
RF
LO
W
TES
T
Block
Engine
SY
STE
M V
AC
UU
M
Hose
Adapter
Step
Pump
Water
Overflow
& O
VE
RFL
OW
LO
WE
R R
AD
IAT
OR
TES
T
SY
STE
M P
RE
SS
UR
E
Hose
Radiator
Radiator
Adapters
Heater
Core
LO
W
ER
RA
DIA
TO
R
& O
VE
RFL
OW
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.