64 53 733 Replacing double pipe

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WARNING: Risk of injury!
Refrigerant circuit is under high pressure!
Follow safety instructions for handling R 134a refrigerant. , see 64 50... Safety instructions for handling refrigerant R134a .
Avoid contact with refrigerant and refrigerant oil.
Follow safety instructions for handling refrigerant oil. , see 64 50... Safety instructions for handling refrigerant oil .

IMPORTANT: Risk of damage!
Restart engine only when A/C system has been correctly filled.
Follow instructions for opening and replacing parts in refrigerant circuit! See 64 52... Instructions for opening and replacing parts in refrigerant circuit .
If A/C system is opened for more than 24 hours:Replace desiccant insert for A/C system , see 64 53 517 Replacing desiccant insert for A/C system .

Necessary preliminary tasks:

Drawing off, evacuating and filling the A/C system are not included in the time value given for this work operation, see 64 50 009 Drawing off, evacuating and filling A/C system (R 134a) .

Release screw (1).

Installation:

Check that rubber seal is correctly seated.

Tightening torque 64 53 1AZ , see 64 53 REFRIGERANT LINES AND EXPANSION VALVE .

Fig 1: Identifying Rubber Seal And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1) and remove refrigerant lines.

Remove refrigerant line from double pipe holder (2).

Installation:

Replace all sealing rings and moisten with refrigerant oil.

Tightening torque 64 53 5AZ. See 64 53 REFRIGERANT LINES AND EXPANSION VALVE .

Fig 2: Identifying Double Pipe Holder And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

Evacuate and fill A/C system , see 64 50 009 Drawing off, evacuating and filling A/C system (R 134a) .