Basic System (HVAC): Overview — Basic System (HVAC) — Automatic HVAC System

Basic System (HVAC): Overview Mazda 3 BM

Scheme 1: Identifying HVAC Basic System Components Location - SKYACTIV-G 2.0

Scheme 2: Identifying HVAC Basic System Components Location - MZR 2.0 And MZR 2.5

Scheme 3: Identifying HVAC Basic System Components Location - MZR 2.3 DISI Turbo

Scheme 4: AIR FILTER REMOVAL/INSTALLATION

Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5].) (See BATTERY REMOVAL/INSTALLATION [MZR 2.3 DISI TURBO].) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0].)
Remove the side wall. (See SIDE WALL REMOVAL/INSTALLATION.)
Disconnect the evaporator temperature sensor connector.
Disconnect the power MOS FET connector. (Full-auto air conditioner)
Disconnect the resistor connector. (Manual air conditioner)
Remove in the order indicated in the table. (Scheme 4): Identifying Air Filter Component Removal Sequence
Install in the reverse order of removal.

Scheme 5: Air Filter Installation Note

Insert the air filter projection between the ribs of the A/C unit and assemble the air filter (1) in the order shown in the figure. (Scheme 5): Inserting Air Filter Projection Between Ribs Of A/C Unit And Assemble Air Filter
Assemble the air filter (2) in the order shown in the figure. (Scheme 6): Identifying Air Filter Component Assembly Sequence

Basic System (HVAC): Overview Mazda 3 BM