Coolant replacement, Page 10 – MAHLE RTI MCX-2 (Rev C) User Manual
Page 11
Page 10
Adapters
TES
T
& O
VE
RF
LO
W
L OW
ER
RA
DIA
TO
R
EM
PT
Y W
AST
E TA
NK
FIL
L R
AD
IAT
OR
& O
VE
RF
LO
W
Hose
EM
PT
Y W
AST
E TA
NK
OF
F
& O
VER
F LO
W
FIL L
R
AD
I ATO
R
EX
CH
ANG
E C
OOL
AN
T
OFF
Radiator
EX
CH
ANG
E C
OOL
AN
T O
R
LO
WE
R R
AD
IAT
OR
& O
VER
F L
OW
SY
ST
EM
VA
CUU
M
OFF
SYS
T E
M P
RES
SU
RE
Green Hose
Black Hose
Radiator
Step
OFF
SY
STE
M P
RE
SSU
RE
EXC
HA
NG
E C
OO
LA
NT
TES
T
FIL
L R
AD
IAT
OR
& O
VE
RFL
OW
EM
PTY
W
AS
TE
TA
NK
LO
W
ER
RA
DIA
TO
R
& O
VE
RFL
OW
Overflow
Water
Pump
OF
F
OF
F
SY
STE
M V
AC
UU
M
& O
VE
RFL
OW
LO
W
ER
RA
DIA
TO
R
EX
CH
AN
GE
CO
OLA
NT O
R
FIL
L R
AD
IAT
OR
& O
VE
RFL
OW
EM
PT
Y W
AST
E T
AN
K
Core
Engine
Block
Heater
Adapter
Hose
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-2 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 control valve to EXCHANGE COOLANT.
5. Press the top of EXCHANGE COOLANT OR FILL RADIATOR & OVERFLOW
selector switch to turn on the pump.
6. 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.