Mazda 6. Manual — part 376

REFRIGERANT SYSTEM SERVICE PROCEDURES

U–13

U

10. Verify that the intersection of the pressure reading

of the SST (49 C061 001) and ambient
temperature is in the shaded zone.

• If not as specified, troubleshoot the refrigerant

system. (See

U–64 TROUBLESHOOTING

INDEX

.)

End Of Sie

REFRIGERANT SYSTEM PERFORMANCE TEST

A6E851401039W02

1. Perform refrigerant pressure check. (See

U–12 REFRIGERANT PRESSURE CHECK

.)

• If they are correct, go to next step.

• If not as specified, troubleshoot the refrigerant system. (See

U–64 TROUBLESHOOTING INDEX

.)

2. Place a dry-bulb thermometer in the driver-side center ventilator outlet.
3. Warm up the engine and run it at a constant 1,500 rpm.
4. Set the fan speed to MAX HI.
5. Turn the A/C switch on.
6. Set the RECIRCULATE mode.
7. Set the temperature control to MAX COLD.
8. Set the VENT mode.
9. Close all the doors and all the windows.

10. Wait until the air conditioner output temperature stabilizes.

Stabilized condition

• The A/C compressor is repeatedly turned on and off based on the A/C compressor control of center panel

(manual air conditioner) or climate control unit (full-auto air condtioner).

11. Record driver-side center ventilator outlet temperature.
12. Determine and record ambient temperature.
13. Verify that the temperature reading is in the

shaded zone.

• If the performance is not within the shaded

zone, troubleshoot the refrigerant system.
(See

U–64 TROUBLESHOOTING INDEX

.)

End Of Sie

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U–14

BASIC SYSTEM

BLOWER UNIT REMOVAL/INSTALLATION

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1. Disconnect the negative battery cable.
2. Remove the dashboard. (See

S–82 DASHBOARD REMOVAL/INSTALLATION

.)

3. Remove the A/C unit. (See

U–15 A/C UNIT REMOVAL/INSTALLATION

.)

4. Remove the blower unit.
5. Install in the reverse order of removal.

End Of Sie

BLOWER UNIT DISASSEMBLY/ASSEMBLY

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1. Disassemble in the order indicated in the table.

Caution

• Apply only the specified grease to the link. Otherwise abnormal noise or improper operation may

result.

.

2. Assemble in the reverse order of disassembly.

End Of Sie

BASIC SYSTEM

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1

Air filter cover

2

Air filter

3

Blower motor

4

Air intake actuator

5

Air intake crank

6

Air intake door

7

Polyurethane protector

8

Blower case (1)

9

Blower case (2)

A6E8516W002

BASIC SYSTEM

U–15

U

AIR FILTER REMOVAL/INSTALLATION

A6E851661140W03

1. Remove the glove compartment.
2. Remove in the order indicated in the table.

3. Install in the reverse order of removal.

End Of Sie

AIR FILTER INSPECTION

A6E851661140W04

1. Remove the air filter.
2. Inspect the air filter.

• If the air filter is damaged, excessively dirty, or foul smelling, replace the air filter.

Note

• The air filter cannot be reused by cleaning it with water or compressed air.

• Replace the air filter at the following interval, depending on operating conditions.

End Of Sie

A/C UNIT REMOVAL/INSTALLATION

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1. Disconnect the negative battery cable.
2. Discharge the refrigerant from the system. (See

U–9 RECOVERY

.) (See

U–9 CHARGING

.)

3. Drain the engine coolant. (See

E–4 ENGINE COOLANT REPLACEMENT

.)

4. Remove the dashboard. (See

S–82 DASHBOARD REMOVAL/INSTALLATION

.)

5. Remove the theft-deterrent control module. (See

T–86 THEFT-DETERRENT CONTROL MODULE REMOVAL/

INSTALLATION

.)

Caution

• If moisture or foreign material enters the refrigeration cycle, cooling ability will be lowered and

abnormal noise will occur. Always immediately plug open fittings after removing any refrigeration
cycle parts to keep moisture or foreign material out of the cycle.

1

Air filter cover

2

Air filter

A6E8516W018

Destinations

Type

Interval (year or

km {miles})

Europe (L.H.D.
U.K.) specs.

Aldehyde, pollen,
and a dust removal

1 or 20,000

{12,500}

Pollen, and a dust
removal

2 or 40,000

{25,000}

GCC specs.

—

1 or 20,000

{12,500}

U–16

BASIC SYSTEM

6. Remove in the order indicated in the table. Do not

allow compressor oil to spill.

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