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.
-
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:
Speedometer
The speedometer indicates the speed of the
vehicle.
Speed Unit Selector (Type A
Instrument Cluster)
In some countries, you may have to
change the speed units between km/h and
mph.
Press the speed unit selector for 1.5
seconds or more.
The speed units for the speedometer will
change bet ...
Forward Obstruction Warning (FOW))
Forward Obstruction Warning (FOW) is a system which alerts the driver of a
possible
collision using an indicator and warning sound in the instrument cluster while
the vehicle
is being driven at about 15 km/h or faster (10 mph or faster) and the system's
radar sensor
determines that your veh ...
Air Intake Actuator Inspection [Full Auto Air Conditioner]
1. Connect battery positive voltage to air intake actuator terminal B (or C),
connect terminal C (or B) to ground, and then verify that the air intake actuator
operates as shown in the table.
If the operation condition is not normal, replace the air intake actuator.
...
