Engine Coolant

Inspecting Coolant Level

WARNING.

Do not use a match or live flame 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.

Turn off the ignition switch and


Turn off the ignition switch 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 indefinitely 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


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.

If it's at or near L, add enough coolant to


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

CAUTION.

paint. Radiator coolant will damage
paint.

Rinse it off quickly if spilled.

water in the coolant mixture. Use only soft (demineralized)
water in the coolant mixture.

Water that contains minerals will cut down on the coolant's effectiveness.

a proper coolant mixture. Don't add only water. Always add
a proper coolant mixture.

and must be protected by an The engine has aluminum parts
and must be protected by an ethylene-glycol-based coolant to prevent corrosion and freezing.

Alcohol, methanol, Borate or DO NOT USE coolants Containing
Alcohol, methanol, Borate or Silicate.

These coolants could damage the cooling system.

with the coolant. This could DO NOT MIX alcohol or methanol
with the coolant. This could damage the cooling system.

more than 60% antifreeze. Don't use a solution that contains
more than 60% antifreeze.

This would reduce effectiveness.

NOTE.

If the “FL22” mark is shown on or near the cooling system cap, use FL22 type engine coolant. If engine coolant other than FL22 type is used, the engine coolant must be replaced earlier than the specified replacement interval indicated in the scheduled maintenance.

If the coolant reservoir is empty or new


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

    See also:

    Going & Stopping
    All Mazda5s have a 2.3-liter four-cylinder engine that makes 153 horsepower and 148 pounds-feet of torque. It's a smooth-revving unit that's strong enough for its purposes, but it doesn't have a w ...

    Cargo & Towing
    If it's not carrying six occupants, the Mazda5's measly cargo area can be expanded to 44 cubic feet by folding the third-row seat down. Fold the second- and third-row seats and there's 70.9 cubic ...

    Towing Description
    We recommend that towing be done only by an Authorized Mazda Dealer or a commercial tow-truck service. Proper lifting and towing are necessary to prevent damage to the vehicle. Government and loc ...