2019 MAZDA MODEL 3 SEDAN coolant reservoir

Engine Compartment Overview
▼Engine Compartment Overview
1. Engine coolant reservoir
2. Engine oil dipstick
3. Brake/Clutch fluid reservoir
4. Battery
5. Fuse block
6. Cooling system cap
7. Engine oil-filler cap
8. Windshield washer fluid reservoir
Maintenance and Care
Owner Maintenance
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Engine Coolant
▼Inspecting Coolant Level
WA R N I N G
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.
Pull over to a safe location, then switch
the ignition 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 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
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 FULL and LOW
marks on the coolant reservoir when the
engine is cool.

If it is at or near LOW, add enough coolant
to the coolant reservoir to provide freezing
and corrosion protec tion and to bring the
level to FULL.
Securely tighten the coolant reservoir tank
cap after adding coolant.
Maintenance and Care
Owner Maintenance
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CAUTION
Radiator coolant will damage paint.
Rinse it off quickly if spilled.
 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.

If the coolant reser voir is empty or new
coolant is required frequently, consult an
Authorized Mazda Dealer.
Brake/Clutch Fluid
▼ Inspecting Brake/Clutch Fluid Level
WA R N I N G
If the brake/clutch fluid level is low, have
the brakes inspected:
A low brake/clutch
fluid level is dangerous.
A low level could indicate brake lining wear
or a brake system leak which could cause
the brakes to fail and lead to an accident.
The brakes and clutch draw fluid from the
same reservoir.
Inspect the fluid level in the reservoir
regularly. It should be kept between the
MAX and MIN lines.
The level normally drops with
accumulated distance, a condition
associated with wear of brake and clutch
linings. If it is exce ssively low, have the
brake/clutch system inspected by an
Authorized Mazda Dealer.
MAX
MIN
Maintenance and Care
Owner Maintenance
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6. Make sure the cooling fan is operating,then turn off the engine after the
temperature has decreased.
7. When cool, check the coolant level. If it is low, look for coolant leaks from
the radiator and hoses.

If you find a leak or other damage, or if
coolant is still leaking:
Stop the engine and call an Authorized
Mazda Dealer.
1. Cooling system cap
2. Cooling fan
3. Coolant reservoir

If you find no problems, the engine is
cool, and no leaks are obvious:
Carefully add coolant as required (page
6-17).
CAUTION
If the engine continues to overheat or
frequently overheats, have the cooling
system inspected. The engine could be
seriously damaged unless repairs are
made. Consult an Authorized Mazda
Dealer.
If Trouble Arises
Overheating
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▼Capacities
(Approximate Quantities)
Item
Capacity
Engine oil SKYAC‐
TIV-G 2.0
With oil filter replacement
4.2 L (4.4 US qt, 3.7 Imp qt)
Without oil filter replacement 4.0 L (4.2 US qt, 3.5 Imp qt)
SKYAC‐
TIV-G 2.5 With oil filter replacement
4.5 L (4.8 US qt, 4.0 Imp qt)
Without oil filter replacement 4.3 L (4.5 US qt, 3.8 Imp qt)
Coolant Manual transmission
6.3 L (6.7 US qt, 5.5 Imp qt)
Automatic
transmission SKYACTIV-G 2.0
6.5 L (6.9 US qt, 5.7 Imp qt)
SKYACTIV-G 2.5 6.6 L (7.0 US qt, 5.8 Imp qt)
Manual transmis‐
sion oil SKYACTIV-G 2.0
1.70 L (1.80 US qt, 1.50 Imp qt)
SKYACTIV-G 2.5 1.65 L (1.74 US qt, 1.45 Imp qt)
Automatic trans‐
mission fluid SKYACTIV-G 2.0
7.6 L (8.0 US qt, 6.7 Imp qt)
SKYAC‐
TIV-G 2.5 U.S.A. and
CanadaWith Cylinder Deactiva‐
tion
7.9 L (8.3 US qt, 7.0 Imp qt)
Without Cylinder Deacti‐
vation 7.6 L (8.0 US qt, 6.7 Imp qt)
Mexico 7.6 L (8.0 US qt, 6.7 Imp qt)
Transfer case oil 0.35 L (0.37 US qt, 0.31 Imp qt)
Rear differential oil 0.35 L (0.37 US qt, 0.31 Imp qt)
Fuel tank U.S.A. and
Canada2WD
50.0 L (13.2 US gal, 11.0 Imp gal)
AWD 48.0 L (12.7 US gal, 10.6 Imp gal)
Mexico 51.0 L (13.5 US gal, 11.2 Imp gal)
Check oil and fluid levels with dipsticks or reservoir gauges.
Specifications
Specifications
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