64 12 160 Removing and installing or replacing complete independent heater with bracket

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WARNING: Risk of burning!
Work on auxiliary heater may only be carried out when it has cooled down.

NOTE: CLAMP OFF coolant hoses on independent heater.

Recycling

Fuel escapes when fuel lines are detached. Have a suitable collecting vessel ready.

Catch and dispose of escaping fuel.

Observe country-specific waste disposal regulations.

Necessary preliminary tasks:

Remove LEFT WHEEL ARCH COVER

Removal:

Unclip intake silencer in marked area (2).

Release screws (2).

Disconnect fuel line (3).

Unlock connector (4) and disconnect.

Fig 1: Identifying Intake Silencer, Fuel Line, Screws And Connector

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Release screws (1).

Unclip the fuel line (2).

Detach the holder (3).

Fig 2: Identifying Holder, Fuel Line And Screws

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Cut open cable straps (1).

Unlock and disconnect connector (2).

Fig 3: Identifying Cable Straps And Connector

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IMPORTANT: Secure auxiliary heater (2) against falling off/down!

Release spring band clamps (1) and detach coolant hoses.

Remove auxiliary heater (2).

Fig 4: Identifying Auxiliary Heater And Spring Band Clamps

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Replacement:

Release spring band clamp (1).

Release screws (2).

Tightening torque 64 12 2AZ .

Slacken clamp (3) and pull off exhaust hose.

Take off holder (4).

Fig 5: Identifying Spring Band Clamp, Holder And Screws

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Unlock and disconnect connector (1).

Pull off air intake hose (2).

Fig 6: Identifying Air Intake Hose And Connector

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Release screws (1).

Tightening torque 64 12 3AZ .

Remove holder (2) from auxiliary heater (3).

Fig 7: Identifying Holder From Auxiliary Heater And Screws

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Installation:

Position auxiliary heater (2) correctly.

Attach coolant hoses and secure by spring band clamps (1).

Fig 8: Identifying Auxiliary Heater And Spring Band Clamps

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Connect connector (2).

Replace and secure cable straps (1).

Fig 9: Identifying Cable Straps And Connector

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Position the holder (3) correctly.

Tighten down the screws (1).

Clip in the fuel line (2).

Fig 10: Identifying Holder, Fuel Line And Screws

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Tighten screws (2).

Tightening torque 64 12 1AZ .

Connect fuel line (3).

Connect the connector (4).

Clip in intake silencer in marked area (2).

Fig 11: Identifying Intake Silencer, Fuel Line, Screws And Connector

Courtesy of BMW OF NORTH AMERICA, INC.

Required reworking:

Install LEFT WHEEL ARCH COVER
Fill and vent cooling system and check for leaks. See 17 00 039 VENTING AND FILLING COOLING SYSTEM WITH VACUUM FILLING UNIT , 17 00 009 CHECKING COOLING SYSTEM FOR WATERTIGHTNESS , 17 00 039 BLEED COOLING SYSTEM AND CHECK FOR WATERTIGHTNESS (N52T, N55) or 17 00 039 VENTING COOLING SYSTEM AND CHECKING FOR WATERTIGHTNESS (N20)