64 51 591 Removing and installing/renewing evaporator

WARNING: This page is about a different variant/trim than selected.

Special tools required:

00 9 030

NOTE: Non-coated evaporators were installed in connection with ozone generator on vehicles built before 09/2010.
A coated evaporators without an ozone generator is installed on vehicles built after 09/2010.
The evaporators must not be confused!

Necessary preliminary tasks:

Remove HEATING AND AIR-CONDITIONING UNIT
Remove HEAT EXCHANGER

Release screws (1) on filter housing (2).

Remove microfilter cover (3) in direction of arrow.

Installation note:

Microfilter cover (3) must be correctly engaged in guides on filter housing (2).

Fig 1: Removing Microfilter Cover

Courtesy of BMW OF NORTH AMERICA, INC.

Remove microfilter (1) at tabs in direction of arrow from filter housing (2).

Fig 2: Removing Microfilter From Filter Housing

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1) and remove distributor housing lower section (2).

Fig 3: Identifying Distributor Housing Lower Section And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1) on airbag control unit (2).

Remove airbag control unit (2).

Release all screws on filter housing upper section (2) and remove towards top.

Installation note:

In case of equipment specification with rear air conditioner, ensure correct cable routing of shutoff valve (4).

Fig 4: Identifying Airbag Control Unit, Shutoff Valve, Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Remove evaporator (1) in direction of arrow from distributor housing (2) and set down securely.

Fig 5: Removing Evaporator From Distributor Housing

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement:

Release screws (1) and remove flange (2) with expansion valve (3).

Tightening torque 64 53 2AZ .

Installation note:

Ensure that seals are correctly seated.

Replace sealing rings.

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

Fig 6: Identifying Expansion Valve, Flange And Screws

Courtesy of BMW OF NORTH AMERICA, INC.