64 52 530 Removing and installing/replacing electric A/C compressor

WARNING: High-voltage system - danger to life!

The following points must be strictly observed prior to starting work :

De-energize the HIGH-VOLTAGE SYSTEM
Observe SAFETY INFORMATION for working with hybrid cars.

WARNING: Danger of injury!

Refrigerant circuit is under high pressure!

Avoid contact with refrigerant and refrigerant oil.

Read and comply with safety information:

Handling REFRIGERANT R134A (TETRAFLUORETHANE)
Handling REFRIGERANT OIL

IMPORTANT: Risk of damage! Restart engine only when air conditioning has been correctly filled.

Read and comply with NOTES ON REPLACING COMPRESSOR .

Follow instructions for OPENING AND REPLACING PARTS IN REFRIGERANT CIRCUIT .

If Air conditioning is opened for more than 24 h: REPLACE DESICCANT INSERT FOR AIR CONDITIONING .

Necessary preliminary tasks:

Release screws (1) from air conditioning lines (2).

Installation note:

Replace sealing rings.

Tightening torque 64 52 1AZ .

Fig 1: Identifying Air Conditioning Lines And Screws

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Release screw (1). Remove holder (2) with air conditioning lines (3) and spacer sleeve (4).

Tightening torque 64 52 6AZ .

IMPORTANT: Risk of damage!

Do not fit holder (2) without spacer sleeve (4).

Fig 2: Identifying Holder, Air Conditioning Lines, Spacer Sleeve, Belt And Screws

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Remove air conditioning lines (3) from electric A/C compressor (5) upwards and place to one side.

Installation note:

Air conditioning lines (3) must not be set against belt (6)!

Check distance between air conditioning lines (3) and belt (6) in area (7)!

If necessary, adjust holder (2) so that distance is at least 2 cm.

Unlock and disconnect high-voltage plug connection (3). Detach high-voltage cable (4) at the location marked with the arrow and set aside.

IMPORTANT: OBSERVE NOTE ON UNLOCKING AND DISCONNECTING different plug connections!

Fig 3: Identifying High-Voltage Plug Connection, High-Voltage Cable And Line

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Unlock plug connection (5) and disconnect.

Unfasten plug connection (2) and disconnect.

NOTE: Raise unlocking device upward. Press unlocking device and pull off plug connection (2) upwards.

Detach line (1) at position marked with arrows and place to one side.

Release screws (1) from electric A/C compressor (2). Remove electric A/C compressor (2).

Tightening torque: 64 52 3AZ .

Release screws (3) and remove both holders (4, 5).

Tightening torque: 12 31 2AZ

Fig 4: Identifying Electric A/C Compressor, Holders And Screws

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Position electric A/C compressor (1) as shown in graphic and feed out upwards.

Fig 5: Identifying Electric A/C Compressor

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After installation:

Evacuate and fill A/C SYSTEM