Removing and installing or replacing expansion valve

Special tools required:

WARNING: Injury hazard!

Refrigerant circuit is under high pressure!

Follow safety instructions for handling R134a refrigerant. Refer to: R134A REFRIGERANT or TETRAFLUORETHANE REFRIGERANT R134A

Avoid contact with refrigerant and refrigerant oil.

Follow SAFETY INSTRUCTIONS for handling refrigerant oil.

IMPORTANT: Risk of damage!

Restart engine only when air conditioning has been correctly filled.

Follow INSTRUCTIONS for opening and replacing parts in refrigerant circuit.

NOTE: If air conditioning is opened for more than 24 hours: Replace DESICCANT INSERT for heating and air conditioning system.

Preliminary work needed:

Removal:

Remove plug connections (1) upwards out of cover (2).

Remove cover (2).

Courtesy of BMW OF NORTH AMERICA, INC.

Unscrew the screws (1).

Remove refrigerant lines (2).

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1) and screw in special tool 64 1 140.

Release screw (2) and feed out expansion valve (3) towards front.

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

NOTE: Replace all sealing rings on twin pipes (2).

Use special tool 00 9 030 to mount sealing rings without damaging them.

Carefully insert expansion valve (1).

Grip mounting plate (3) with special tool 64 1 140 and secure expansion valve (1) with a screw.

Courtesy of BMW OF NORTH AMERICA, INC.

Release special tool 64 1 140.

Tighten screws (1 and 2) on expansion valve (3).

NOTE: Make sure expansion valve is correctly seated on seal.

Courtesy of BMW OF NORTH AMERICA, INC.

Position refrigerant lines (2).

Tighten down screws (1).

NOTE: Replace sealing rings.

Use special tool 00 9 030 to install sealing rings without damaging them.

Courtesy of BMW OF NORTH AMERICA, INC.

Position cover (2) correctly.

Insert plug connections (1) downwards in cover (2).

Courtesy of BMW OF NORTH AMERICA, INC.

Required reworking: