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Structural View

WARNING: This page is about a different car, the 2018 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Structural View Of HVAC Basic System Components Location
G12233490Courtesy of MAZDA MOTORS CORP.
COMPONENT DESCRIPTION

1 Driver-side front heat duct
(See FRONT HEAT DUCT REMOVAL/INSTALLATION .)
2 A/C unit
(See A/C UNIT REMOVAL/INSTALLATION .)
(See A/C UNIT DISASSEMBLY/ASSEMBLY .)
3 Airflow mode main link
(See AIRFLOW MODE MAIN LINK REMOVAL .)
(See AIRFLOW MODE MAIN LINK INSTALLATION .)
4 Passenger-side front heat duct
(See FRONT HEAT DUCT REMOVAL/INSTALLATION .)
5 Blower fan controller
(See BLOWER FAN CONTROLLER REMOVAL/INSTALLATION .)
(See BLOWER FAN CONTROLLER INSPECTION .)
6 Blower unit
(See BLOWER UNIT REMOVAL/INSTALLATION .)
(See BLOWER UNIT DISASSEMBLY/ASSEMBLY .)
7 Air filter
(See AIR FILTER REMOVAL/INSTALLATION .)
(See AIR FILTER INSPECTION .)
8 Blower motor
(See BLOWER MOTOR REMOVAL/INSTALLATION .)
(See BLOWER MOTOR INSPECTION .)
9 Passenger-side rear heat duct
(See REAR HEAT DUCT REMOVAL/INSTALLATION .)
10 Rear vent duct (With rear vent duct)
(See REAR VENT DUCT REMOVAL/INSTALLATION .)
11 Driver-side rear heat duct
(See REAR HEAT DUCT REMOVAL/INSTALLATION .)