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:
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 ...
Front Lower Arm Inspection
1. Remove the front lower arm from the vehicle..
2. Inspect the arm for bending or damage, and the ball joint for excessive looseness.
If there is any malfunction, replace the front lower arm.
3. Rotate the ball joint stud 5 times. Install the SST to the ball
joint stud, measure t ...
A/C Unit Removal/Installation
1. Set the air mix mode to MAX COLD.
2. Disconnect the negative battery cable..
3. Discharge the refrigerant..
4. Drain the engine coolant..
5. Remove the plug hole plate.
6. Remove the charge air cooler cover. (MZR 2.3 DISI Turbo).
7. Remove the insulator. (MZR 2.3 DISI Turbo)
8. ...
