Service Port HVAC: Service and Repair

Service valve (at the member) and needle valve

Removal
- Disconnect the battery negative lead.
- Drain the refrigerant from the system.
- Remove the pipe between the expansion valve and the junction point/side member.

Installation
Install.

The needle valve in the service valve

Removal







- Remove the valve cap
- Unscrew the needle jet. Use special tool 9511204.

Installation
Install in reverse order.

NOTE: Use only your thumb and index finger when tightening the service valve using the valve needle tool 981 1994-4. This is to prevent damage to the seal for the valve.

- Vacuum pump the system and leak test.
- Fill the system with refrigerant and check for leaks.
- Connect the battery negative lead.
Tighten the valve cap. Tighten to 6 Nm