64 11 206 Removing and installing or replacing heater

WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2007 BMW M5, 2007 BMW 550i, 2007 BMW 530xi, 2007 BMW 530i, and 2007 BMW 525xi. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Draw off refrigerant from A/C system. See 64 50 009 Drawing Off, Evacuating And Filling A/C System (R 134a) .
Remove fresh air duct. See 64 31 053 Removing And Installing Or Replacing Fresh Air Duct .
Remove trim for instrument panel. See 51 45 030 REMOVING AND INSTALLING INSTRUMENT .
Remove temperature sensor for cold-air distributor. See 64 11 916 Replacing Temperature Sensor For Cold-Air Distributor .

WARNING: Follow instructions for working on cooling system. See 17 00... INSTRUCTIONS FOR WORKING ON COOLING SYSTEM .

WARNING: To avoid injury, cover holder (1) on support tube (2).

Fig 1: Identifying Cover Holder And Support Tube

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Unscrew nuts (1).

Installation:

Tightening torque, see 64 53 8AZ in AIR CONDITIONING & HEATING - TIGHTENING TORQUES article.

Detach refrigerant line (2) in direction of arrow.

Unclip refrigerant line (3).

Fig 2: Detaching Refrigerant Line In Direction Of Arrow

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WARNING:

When installing heater, make sure left and right air ducts are correctly seated.
Check left and right air ducts for leaks.
If necessary, reseal left and right air ducts with butylene tape (sourcing reference: BMW Parts Service).
If left and right air ducts are resealed, make sure flaps can move freely.

Feed out rubber grommet (1).

Installation:

Make sure rubber grommet (1) is correctly seated.

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

Fig 3: Detaching Refrigerant Lines

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Installation:

Tightening torque, see 64 53 7AZ in AIR CONDITIONING & HEATING - TIGHTENING TORQUES article.

Replace sealing rings.

Release nuts (5) on right air duct.

Installation:

Tightening torque, see 64 11 4AZ in AIR CONDITIONING & HEATING - TIGHTENING TORQUES article.

Feed out rubber grommet (1).

Installation:

Make sure rubber grommet (1) is correctly seated.

Release spring clamps (2) and detach coolant hoses (3).

IMPORTANT: Carefully blow through aluminum triple pipe to remove remaining coolant from heat exchanger for heating system.

Fig 4: Releasing Spring Clamps And Detach Coolant Hoses

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Installation:

Vent cooling system and check for leaks. See 17 00 005 DRAINING OFF AND TOPPING UP COOLANT .

Release nuts (4) on left air duct.

Installation:

Tightening torque, see 64 11 4AZ in AIR CONDITIONING & HEATING - TIGHTENING TORQUES article.

Disconnect rear compartment air duct (1) in direction of arrow.

Installation:

Make sure rear compartment air duct (1) is correctly seated.

Fig 5: Disconnecting Rear Compartment Air Duct

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Release screws (1).

Remove left air duct (2) in direction of arrow.

Fig 6: Removing Left Air Duct

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Release screws (1).

Remove right air duct (2) in direction of arrow.

Fig 7: Removing Right Air Duct

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Carefully lever out locks (1) and (2).

Detach air distributor (3) in direction of arrow.

Installation:

Make sure air distributor (3) is correctly seated.

Fig 8: Detaching Air Distributor

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IMPORTANT: Follow instructions for handling optical fibers. See 61 00... NOTES ON HANDLING OPTICAL FIBERS .

Necessary preliminary tasks:

Disconnect all necessary cable ties on support tube.
Release wiring harnesses/cable ducts and lay to one side.
If necessary, remove control units/disconnect plug connections.

Installation:

Make sure wiring harnesses/cable ducts are correctly routed and secured.

If necessary, remove CD changer (1). See 65 11 072 REMOVING AND INSTALLING/REPLACING CD CHANGER .

Loosen screws (2).

Set fuse-carrier (3) down in footwell.

Fig 9: Setting Fuse-Carrier Down In Footwell

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Release screws (1).

Installation:

Fig 10: Releasing Screws

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Release screws (1).

Installation:

Tightening torque, see 51 71 15AZ in BODY EQUIPMENT - TIGHTENING TORQUES - 525i & 530i .

Fig 11: Releasing Screws

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Release screws (1).

Installation:

Tightening torque, see 51 71 15AZ in BODY EQUIPMENT - TIGHTENING TORQUES - 525i & 530i .

Fig 12: Releasing Screws

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Unscrew nuts (1).

Installation:

Tightening torque, see 51 71 15AZ in BODY EQUIPMENT - TIGHTENING TORQUES - 525i & 530i .

Fig 13: Unscrew Nuts

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Unscrew nuts (1).

Detach support tube (2) and remove from vehicle with assistance of a second person.

Installation:

Tightening torque, see 51 71 15AZ in BODY EQUIPMENT - TIGHTENING TORQUES - 525i & 530i .

Fig 14: Detaching Support Tube

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If necessary, unlock and disconnect plug connections on heater.

Remove heater (1) in direction of arrow.

Installation:

Make sure heater (1) is correctly seated.

Fig 15: Removing Heater

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Installation:

Make sure condensate drain (1) is correctly seated in grommet (2).

Fig 16: Identifying Condensate Drain Is Correctly Seated In Grommet

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