Section 03
ENGINE
Subsection 05
(COOLING SYSTEM)
03-05-4
VMR2004_128_03_05A.FM
DRAINING THE SYSTEM
To drain cooling system, partially unscrew cooling
drain plug
no. 1
on the engine MAG side and re-
move radiator cap
no. 11
.
1. Cooling drain plug
CAUTION:
If the drain plug is removed com-
pletely, pay attention to the gasket ring
no. 2
.
Never use the gasket ring a second time. Always
install a new one.
When cooling system is drained completely, screw
the cooling drain plug and torque it to 10 N•m
(89 lbf•
in
).
COOLANT REPLACEMENT
Recommended Coolant
Use Bombardier premixed coolant (P/N 293 600
038) or a blend of 50% antifreeze with 50% water.
Do not reinstall radiator cap.
CAUTION:
To prevent rust formation or freezing
condition, always replenish the system with the
Bombardier premixed coolant or with 50% anti-
freeze and 50% water. Do not use tap water,
straight antifreeze or straight water in the sys-
tem. Tap water contains minerals and impuri-
ties which build up in the system. During cold
weather, straight water causes the system to
freeze while straight antifreeze thickens and
does not have the same efficiency. Always use
ethylene glycol antifreeze containing corrosion
inhibitors specifically recommended for alumi-
num engines.
System Capacity
Refer to TECHNICAL DATA.
Coolant Replacement Procedure
Drain the system completely.
Pinch radiator inlet hose
no. 14
between radiator
and thermostat housing with a large hose pincher
(P/N 529 032 500).
1. Hose pincher
Unscrew bleeding screw on top of thermostat
housing.
1. Bleeding screw area
2. Water temperature switch
WARNING
Never drain or refill cooling system when en-
gine is hot.
1
R400motr231A
WARNING
To avoid potential burns, do not remove the
radiator cap or loosen the engine drain plug
if the engine is hot.
1
V07C0AA
1
R400motr134A
2
