S40 L4-1.9L Turbo VIN 29 B4204T3 (2001)
Hose/Line HVAC: Procedures
Pipes And Hoses
Introduction
WARNING: Follow applicable safety regulations for working with air conditioning systems.
NOTE:
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Read the instructions on slow and fast leaks.
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Always use new O-rings greased with AC compressor oil.
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Always plug pipes and connections when working with climate control systems.
Overview Of Pipes And Hoses
A1: Hose/pipe between the compressor and evaporator
B1: Pipe between the evaporator and coupling
B2: Hose between the coupling and the refrigerant reservoir
C: Pipe between the refrigerant reservoir and the condenser
D: Hose between the condenser and compressor
Preparation
NOTE:
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O-rings must always be replaced when replacing pipes.
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Hold the pipe in place with your hand when removing and tightening to avoid damaging couplings and pipes.
Bleed the refrigerant from the system.
Oil O-rings with AC compressor oil