Lowering coolant level, Page 6 – MAHLE RTI MCX-1 (Rev D) User Manual
Page 7

Page 6
VERY IMPORTANT
Open valve on wand only while end is in fluid.
Do not suck air as the pump may loose its prime.
Green Hose
Water
Radiator
Overflow
Pump
Black Hose
Hose
Radiator
Wand
Heater
Engine
Core
Block
OFF
& O
VER
FLO
W
LOW
ER R
ADI
ATO
R
OFF
EXC
HAN
GE
COO
LAN
T O
R
FILL
RA
DIA
TOR
& O
VER
FLO
W
& O
VER
FLO
W
LO
WER
RA
DIA
TO
R
EMP
TY W
AST
E TA
NK
EXC
HAN
GE
CO
OLA
NT
& O
VER
FLO
W
FILL
RA
DIA
TO
R
OFF
EMP
TY W
AST
E T
ANK
EM
PTY
WA
STE
TAN
K
LOW
ER R
ADIA
TOR
& O
VER
FLO
W
FILL
RAD
IATO
R &
OV
ERF
LOW
EXC
HAN
GE C
OO
LAN
T O
R
EM
PTY
WA
STE
TA
NK
OFF
FILL
RA
DIA
TOR
& O
VER
FLO
W
EXC
HAN
GE C
OO
LAN
T
OFF
LOW
ER R
ADIA
TOR
& O
VER
FLO
W
OFF
LOWERING COOLANT LEVEL
WARNING: Coolant in the vehicle cooling system may be extremely hot and
under great pressure. Wear safety glasses and use protective
clothing and gloves. Use extreme caution when removing radiator
cap and hoses.
1. Slowly and carefully remove the cap from the radiator.
2. Remove cap from overflow container.
3. Attach the wand to the black hose. Close the valve.
4. Turn control valve to LOWER RADIATOR & OVERFLOW.
5. Press the top of LOWER RADIATOR & OVERFLOW selector switch to turn on
pump.
6. Use the Wand to empty the overflow container and lower the level of coolant
in the radiator to a level just below the upper hose connecting the radiator to the
engine. Open valve on wand as required.
7. Press bottom of LOWER RADIATOR & OVERFLOW selector switch to turn off
pump.
8. Replace caps on the radiator and overflow container.