Cooling System: Description and Operation

Coolant System


Risk of scalding due to hot steam and hot coolant:

• The coolant system is under pressure when the engine is warm.

• Wear protective goggles and protective clothing to prevent damage to eyes and scalding.

• Reduce pressure by covering the coolant expansion tank cap with a cloth and carefully opening.


• When doing any repair work, especially in the engine compartment, pay attention to the following due to clearance issues:

• Route lines of all types (for example, fuel, hydraulic, Evaporative Emission (EVAP), coolant, refrigerant, brake fluid and vacuum) and electrical wiring so that the original path is followed.

• To prevent damage to the lines, make sure there is sufficient clearance to all moving or hot components.

• Install only approved clamps for securing hose connections.

• The arrows on the coolant pipes and ends of the coolant hoses must align when installing.