Porshe 911 (997). Manual - part 855

- Preliminary work
- General warning notes
- Tools and materials
- Removing air-conditioning compressor
- Installing air-conditioning compressor
- Subsequent work
- Checking refrigerant oil in "new" air-conditioning compressor

Preliminary work

Preliminary work for air-conditioning compressor

1. Drain refrigerant for air-conditioning system with a refrigerant

pump.

2. Remove drive belt. →  21 Removing and installing drive belt -

removing.

General warning notes

General warning notes for air-conditioning compressor

WARNING

Safety regulations should be strictly observed when working on air-conditioned vehicles and dealing
with refrigerant.

Danger of injury.

• 

→ →   Safety regulations for working on air-conditioned vehicles and handling refrigerant

→ →   Safety regulations for extraction and filling systems

→ →   Instructions for repairing air-conditioning systems and storing spare parts

3577

Tools and materials

Tools for air-conditioning compressor

Air-conditioning service unit, refer to Special Tools, Commercially Available Tools, Chapter 2.4, No. 96-2)

Removing air-conditioning compressor

Removing the air-conditioning compressor

1. Take out the connector for the compressor from between the intake pipes and pull apart.

2. Remove the three fastening screws -1- from the air conditioning compressor. The rear screw can

only be pulled out after removal.

3. Lift the air-conditioning compressor with the rear fastening screw and pull out of the

engine.

Diagnostic system: reading out fault memory and activating systems

General warning notes for air-conditioning compressor

3578

4. Place the air-conditioning compressor with the lines on the rear support plate and remove the two

fastening screws -1, 2- .

5. Immediately close off connections and lines with suitable plugs.

Installing air-conditioning compressor

Installing the air-conditioning compressor

ATTENTION

Risk of damaging the air-conditioning compressor.

→ The engine must not be started until the air-conditioning system has been

filled.

Note

New compressors are pressurised and are filled with the required amount of oil for the refrigerant
circuit!

• 

The remaining oil quantity in the individual components must therefore be taken into account!

• 

Refrigerant oil from the compressor or refrigerant oil removed by suction from a previously run
air-conditioning system may no longer be used (special-category waste)!

• 

1. If a new compressor is installed, first correct the refrigerant oil quantity in the air-conditioning

compressor.

2. Replace O-rings for the refrigerant lines and wet the new rings with refrigerant

oil.

3. Do not remove the plugs for the lines and compressor connection until shortly before

installation.

Diagnostic system: reading out fault memory and activating systems

Removing the air-conditioning compressor

3579

4. Connect the lines and secure with the fastening screws -1, 2- . → M8: 15 ftlb → M8: 15 ftlb

5. Insert the rear fastening screw into the air-conditioning

compressor.

6. Place the air-conditioning compressor with the rear fastening screw on the engine housing and screw

down with the three fastening screws -1- . → M8: 17 ftlb

7. Connect the plug and place between the pipes of the intake system.

Subsequent work

Subsequent work for the air-conditioning compressor

Install drive belt. →  23 Removing and installing drive belt - installing.

Diagnostic system: reading out fault memory and activating systems

Installing the air-conditioning compressor

3580