Mazda 3 Owners Manual: Engine Coolant

Mazda 3 Owners Manual / Maintenance and Care / Owner Maintenance / Engine Coolant

Inspecting Coolant Level

WARNING Do not use a match or live fl ame in the engine compartment. DO NOT ADD COOLANT WHEN THE ENGINE IS HOT: A hot engine is dangerous. If the engine has been running, parts of the engine compartment can become very hot. You could be burned. Carefully inspect the engine coolant in the coolant reservoir, but do not open it.

Switch the ignition to
off and make sure the fan is not running before attempting to work near the cooling fan: Working near the cooling fan when it is running is dangerous. The fan could continue running indefi nitely even if the engine has stopped and the engine compartment temperature is high. You could be hit by the fan and seriously injured.

Do not remove either
cooling system cap when the engine and radiator are hot: When the engine and radiator are hot, scalding coolant and steam may shoot out under pressure and cause serious injury.

NOTE Changing the coolant should be done by an Authorized Mazda Dealer.

Inspect the antifreeze protection and coolant level in the coolant reservoir at least once a year—at the beginning of the winter season—and before traveling where temperatures may drop below freezing.

Inspect the condition and connections of all cooling system and heater hoses.

Replace any that are swollen or deteriorated.

The coolant should be at full in the radiator and between the F and L marks on the coolant reservoir when the engine is cool.

Mazda 3. Inspecting Coolant Level

If it is at or near L, add enough coolant to the coolant reservoir to provide freezing and corrosion protection and to bring the level to F.

Securely tighten the coolant reservoir tank cap after adding coolant.

CAUTION

Radiator coolant will damage paint.
Rinse it off quickly if spilled.
Use only soft (demineralized) water in the coolant mixture. Water that contains minerals will cut down on the coolant's eff ectiveness.
Do not add only water. Always add a proper coolant mixture.
The engine has aluminum parts and must be protected by an ethylene-glycolbased coolant to prevent corrosion and freezing.
DO NOT USE coolants Containing Alcohol, methanol, Borate or Silicate.
These coolants could damage the cooling system.
DO NOT MIX alcohol or methanol with the coolant. This could damage the cooling system.
Do not use a solution that contains more than 60% antifreeze.
This would reduce eff ectiveness.
If the “FL22” mark is shown on or near the cooling system cap, use of FL-22 is recommended when replacing engine coolant. Using engine coolant other than FL-22 may cause serious damage to the engine and cooling system.

Mazda 3. Inspecting Coolant Level

If the coolant reservoir is empty or new coolant is required frequently, consult an Authorized Mazda Dealer.

Inspecting Engine Oil Level

Be sure the vehicle is on a level surface. Warm up the engine to normal operating temperature. Turn it off and wait at least 5 minutes for the oil to return to the oil pan. Pull out the ...

Brake/Clutch Fluid

Inspecting Brake/Clutch Fluid Level WARNING If the brake/clutch fl uid level is low, have the brakes inspected: A low brake/clutch fl uid level is dangerous. A low level could i ...

Other materials:

Front Seat Belt Removal/Installation [Standard Deployment Control System]
WARNING: Handling the front seat belt (pre-tensioner seat belt) improperly can accidentally deploy the pre-tensioner seat belt, which may seriously injure you. Read the air bag system service warnings and cautions before handling the front seat belt.. WARNING: The side ...

Assist Handle Removal/Installation
Assist Handle Removal 1. Insert a flathead screwdriver into the service hole and remove the assist handle covers. 2. Remove the assist handle in the direction of the arrow (1) and (2), while detach the clip. NOTE: Remove the assist handle by shaking it up and down. Ass ...

Air Bag Module And Pre Tensioner Seat Belt Deployment Procedures [Standard Deployment Control System]
WARNING: A live (undeployed) air bag module or pre-tensioner seat belt may accidentally operate (deploy) when it is disposed of and cause serious injury. Do not dispose of a live (undeployed) air bag module and pre-tensioner seat belt. If the SSTs (Deployment tool and Adapter harn ...