Contents Section: Automatic HVAC System All sections

Basic System (HVAC): Overhaul Mazda 3 BL рестайлинг

Automatic HVAC System 6 illustrations ~418 words

A/C UNIT DISASSEMBLY/ASSEMBLY

  1. Disassemble in the order indicated in the table. CAUTION: If a non-specified grease is used, it may result in abnormal noise or improper operation of the links. Apply only the specified grease to each link.
  2. Assemble in the reverse order of disassembly.

A/C Unit Disassembled Sequence With Torque Specifications. Scheme 117

Scheme 117: A/C Unit Disassembled Sequence With Torque Specifications

Scheme 118

Scheme 118: Evaporator Temperature Sensor Assembly Note
  1. Assemble the evaporator temperature sensor as shown in the figure. (Scheme 118): Identifying Evaporator Temperature Sensor Installation CAUTION: When installing the evaporator temperature sensor without replacing the evaporator, assemble the evaporator temperature sensor with the installation position slid to the left of the previous position by 1 line. If the evaporator temperature sensor is assembled to the previously installed position, it may not function due to poor contact of the fin surface with the sensor detection area caused by fin deformation. NOTE: Replace the evaporator in which the evaporator temperature sensor cannot be correctly positioned.

Scheme 119

Scheme 119: Adhesive Polyurethane (2) Assembly Note

Scheme 120

Scheme 120

Scheme 121

Scheme 121
  1. Wrap the low-pressure side of the evaporator pipe with insulator. (With insulator) (Scheme 119): Wrapping Low-Pressure Side Of Evaporator Pipe With Insulator
  2. Assemble the adhesive polyurethane as shown in the figure. (Scheme 120): Assembling Adhesive Polyurethane (1 Of 2) (Scheme 121): Assembling Adhesive Polyurethane (2 Of 2)

Scheme 122

Scheme 122: EXPANSION VALVE REMOVAL/INSTALLATION
  1. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-520388-S24063200782013010300000).) (See «BATTERY REMOVAL/INSTALLATION [MZR 2.3 DISI TURBO]»(ref-520412-S07601908282013010300000).) (See «BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520427-S28538867222013010300000).)
  2. Discharge the refrigerant from the system. (See «REFRIGERANT CHARGING»(ref-520437-S36735399982013010300000).) CAUTION: If moisture or foreign material enters the refrigeration cycle, cooling ability will be lowered and abnormal noise will occur. Always immediately plug all open fittings after removing any refrigeration cycle parts to keep moisture or foreign material out of the cycle.
  3. Disconnect the cooler hose (LO) and cooler pipe. Do not allow compressor oil to spill. (See «REFRIGERANT LINE REMOVAL/INSTALLATION»(ref-520443-S00817590292013010300000).)
  4. Remove the following parts: Front side trim (RH) (See «FRONT SIDE TRIM REMOVAL/INSTALLATION»(ref-520454-S10636860092013010300000).) Front scuff plate (See «FRONT SCUFF PLATE REMOVAL/INSTALLATION»(ref-520454-S34787470772013010300000).) Dashboard under cover (See «DASHBOARD UNDER COVER REMOVAL/INSTALLATION»(ref-520454-S21271611252013010300000).) Glove compartment (See «GLOVE COMPARTMENT REMOVAL/INSTALLATION»(ref-520454-S00904275812013010300000).) Lower panel (passenger-side) (See «LOWER PANEL REMOVAL/INSTALLATION»(ref-520454-S41081192382013010300000).) Side wall (RH) (See «SIDE WALL REMOVAL/INSTALLATION»(ref-520454-S11769586082013010300000).) Shower duct (RH) (See «A/C UNIT REMOVAL/INSTALLATION»(ref-520443-S01420897172013010300000) )
  5. Remove the adhesive polyurethane (2). (See «A/C UNIT DISASSEMBLY/ASSEMBLY»(ref-520443-S25418176522013010300000).)
  6. Remove the bolt A.
  7. Disconnect the evaporator pipe.
  8. Remove the bolt B.
  9. Remove the expansion valve. Do not allow compressor oil to spill. (Scheme 122): Expansion Valve With Torque Specifications
  10. Install in the reverse order of removal.
  11. Perform the refrigerant system performance test. (See «REFRIGERANT SYSTEM PERFORMANCE TEST»(ref-520437-S04122794112013010300000).)