Polaris 450 S Offroad Vehicle User Manual

Engine Cooling System
Coolant Level
The recovery bottle is located on the right side of
the vehicle under the front fender. The fluid level
must be maintained between the FULL and ADD
marks on the side panel (when the fluid is cool).
As coolant operating temperature increases, the
expanding (heated) excess coolant is forced out of
the radiator, past the pressure cap, and into the
recovery bottle. As engine coolant temperature
decreases, the contracting (cooled) coolant is
drawn back up from the tank, past the pressure
cap, and into the radiator.
NOTE: Some coolant level drop on new machines is
normal, as the system is purging itself of
trapped air. Observe coolant levels and
maintain as recommended by adding coolant
to the recovery bottle.