Hose/Line HVAC: Service and Repair

1. Disconnect the negative battery cable.
2. Evacuate the refrigerant from the system.




3. Remove the following parts, depending on pipe and hose to be removed.

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.
- Do not allow A/C compressor oil to spill. Operating the A/C compressor without sufficient A/C compressor oil can lead to abnormal noise and cause the A/C compressor to seize.

Front:

Rear:

4. Remove in the order indicated in the table.
5. Install in the reverse order of removal.
6. Perform the refrigerant system performance test.

Refrigerant Lines Removal Note
1. Loosen the nut with two wrenches, then remove the cooler pipe or hose.

Refrigerant Lines Installation Note
1. When installing a new cooler pipe or hose, add a supplemental amount of ND-OIL8 compressor oil from the inlet.

Supplemental amount
10 ml {10 cc, 0.3 fl oz}

2. Apply compressor oil to the 0-rings and connect the joints.
3. Tighten the joints.
1. Tighten the nut or bolt of the joint by hand.
2. Tighten the joint to the specified torque. If it is a nut joint, tighten the nut with a wrench and torque wrench.