Mazda 3 Service Manual: Heater Core Inspection
1. Inspect the heater core for damage, cracks, and water leakage.
-
If there is any malfunction, replace the heater core.
2. Visually inspect the fins for bending.
-
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:
Engine Tune Up [Mzr 2.0, Mzr 2.5]
NOTE:
If the accelerator pedal is depressed continuously for a specified time,
the engine speed may decrease to the idle speed. This is due to the fuel cut
control operation, which prevents overheating, and it does not indicate a malfunction.
Engine Tune-up Preparation
1. Verify ...
Relay Inspection [Mzr 2.0, Mzr 2.5, Mzr 2.3 Disi Turbo]
Relay Type
Connector type
Part name
Type A
Front fog light relay
Headlight relay (HI)
Headlight relay (LO)
Horn relay
TNS relay
A/C relay
AT ma ...
Headlight Leveling
The number of passengers and weight of
cargo in the luggage compartment change
the angle of the headlights.
Auto type
The angle of the headlights will be
automatically adjusted when turning on
the headlights.
The warning/indicator light turns on when
the system has a malfunction.
Refer ...
