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The compressor's low-pressure hose

The compressor's low-pressure hose


To remove

Important

Both the receiver and the compressor oil absorb moisture from the air which cannot be removed. All connections which are opened should therefore be plugged immediately.



1. Cars with a turbo engine: Place the car on a lift.

2. Drain the AC system of refrigerant.

3. Cars with a turbo engine: Remove the hose between the charge air cooler and the throttle body.

4. Remove the low-pressure pipe from the clip on the front cross-member.


5. Remove the clip holding the low-pressure side's service connection.

6. Remove the nut securing the low-pressure pipe to the service connection.

7. Plug the openings.

8. Remove the screw securing the low-pressure pipe to the compressor and lift up the pipe. On certain variants it might be easier to remove the high-pressure pipe first and then remove the low-pressure pipe.


9. Plug the openings.


To fit



1. Refit the low-pressure pipe. On certain variants it might be easier to remove the high-pressure pipe first and then refit the low-pressure pipe.

2. Lubricate a new O-ring with synthetic vaseline. Remove the plug from the compressor's low-pressure side and fit the O-ring in place.

3. Screw the low-pressure pipe to the compressor.

Tightening torque: 20 Nm (14.8 lbf ft)

4. Fit the low-pressure pipe in the connection to the low-pressure side's service connection and tighten the nut.


Tightening torque: 34 Nm (25.1 lbf ft)

5. Press the low-pressure pipe into the clip on the front cross-member.

6. Refit the service connection in the holder and press on the clip.

7. Cars with a turbo engine: Fit the hose between the charge air cooler and the throttle body and tighten the hose clips.


8. Fill up with compressor oil, carry out vacuum pumping of the AC system and fill up with refrigerant.