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Home >> Infiniti >> 2008 >> M35 V6-3.5L (VQ35DE) >> Repair and Diagnosis >> Heating and Air Conditioning >> Hose/Line HVAC >> Service and Repair >> High-Pressure Flexible Hose

High-Pressure Flexible Hose

Removal and Installation of High-pressure Flexible Hose

REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove engine cover.
3. Remove air cleaner case and air duct.




4. Remove mounting bolt from high-pressure flexible hose bracket.




5. Disconnect one-touch joint between high-pressure flexible hose and condenser.
a. Set a disconnector (SST: 9253089912) on A/C piping.
b. Slide a disconnector backward until it clicks.
c. Slide A/C piping backward and disconnect it.

CAUTION: Cap or wrap the joint of condenser and high-pressure flexible hose with suitable material such as vinyl tape to avoid the entry of air.

6. Remove low-pressure pipe (VK45DE).




7. Remove mounting nut from high-pressure flexible hose, and then remove high-pressure flexible hose.

CAUTION: Cap or wrap the joint of compressor and high-pressure flexible hose with suitable material such as vinyl tape to avoid the entry of air.

INSTALLATION
Installation is basically the reverse order of removal.

CAUTION:
- Replace O-rings of high-pressure flexible hose with new ones, and then apply compressor oil to it when installing it.
- Female-side piping connection is thin and easy to deform. Slowly insert the male-side piping straight in axial direction.
- Insert piping securely until a click is heard.
- After piping connection is completed, pull male-side piping by hand to make sure that connection does not come loose.
- When recharging refrigerant, check for leaks
.

High-pressure flexible hose bracket mounting bolt : 4.2 N.m (0.43 kg-m, 37 in-lb)