64 53 691 Replacing line from evaporator to condenser (N52)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2010 BMW 528xi, 2010 BMW 528i, 2009 BMW 528xi, 2009 BMW 528i, and 2008 BMW 528xi. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Risk of injury!
Refrigerant circuit is under high pressure!
Follow safety instructions for handling R134a refrigerant.
Avoid contact with refrigerant and refrigerant oil.
Follow 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.
If A/C system is opened for more than 24 hours:
Replace 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
Remove fresh air duct
Release expansion tank and place to one side

IMPORTANT: Risk of damage!
Do not place front panel center section (2) on jump start terminals.
Do not kink Bowden cables for engine hood locking.

Release screws (1).

Remove front panel center section (2) in direction of arrow and place to one side.

Fig 1: Releasing Screws

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Feed out rubber grommet (1).

Release nut (2) and detach refrigerant lines (3 and 4) in direction of arrow.

Installation:

Make sure rubber grommet (1) is correctly seated.

Replace sealing rings and moisten with refrigerant oil.

Tightening torque 64 53 7AZ . See 53 CONDENSER AND DRYER .

Fig 2: Identifying Rubber Grommet, Refrigerant Lines And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Expose refrigerant line up to condenser connection.

Release nuts (1) and remove holder (2).

Fig 3: Identifying Holder And Screw

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Release screw (1) and remove refrigerant line (2).

Feed refrigerant line (2) out of engine compartment.

Installation:

Replace sealing rings and moisten with refrigerant oil.

Tightening torque 64 53 6AZ . See 53 CONDENSER AND DRYER .

Replacement:

Modify safety pressure switch.

Fig 4: Identifying Refrigerant Line And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

Evacuate and fill A/C system