Mazda 3 Service Manual: Heater Core Inspection
1. Inspect the heater core for damage, cracks, and water leakage.
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If there is any malfunction, replace the heater core.
2. Visually inspect the fins for bending.
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If there is any bending, use the end of a flathead screwdriver to straighten the fins.
3. Visually inspect the heater hose for deformation.
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Repair with pliers if there is deformation. If there is any malfunction, replace the heater core.
HVAC SST
49 B061 014
Spring Lock Coupling Disconnect Tool
49 G061 001
Spring Lock Coupling Disconnect Tool
49 B061 015A
Holder
...
Rear Heat Duct Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Upper panel.
b. Shift lever knob (MTX).
c. Selector lever knob (ATX).
d. Shift panel.
e. Side wall.
f. Consol ...
Other materials:
Washer Fluid Level Sensor Inspection
1. Disconnect the negative battery cable..
2. Remove the front bumper..
3. Verify that continuity between the washer fluid-level sensor terminals is
as indicated in the table.
If not as specified, replace the washer fluid-level sensor.
...
Fastening the Seat Belt
Pull the seat belt tongue to the desired
length.
Insert it into the seat belt buckle until
you hear a click sound.
Adjust the belt length.
To lengthen the belt, hold the seat belt
tongue at a right angle to the webbing
and pull. To shorten, pull the loose end
of the webbin ...
Adjusting the Vents
Directing airflow
To adjust the direction of airflow, move the
adjustment knob.
NOTE
When using the air conditioner under
humid ambient temperature conditions,
the system may blow fog from the vents.
This is not a sign of trouble but a result
of humid air being suddenly cooled.
The ...
