64 11 219 Replacing heater core (air conditioner control)

Unfasten clip from left air duct, twist air duct and pry out.

Fig 1: Removing Left Air Duct

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Installation: 

Fit air duct to end wall, twist and insert at bottom of microfilter.

Fig 2: Installing Left Air Duct

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Unfasten water hoses (1 to 3) on the end wall. Carefully blow through lines to remove remaining coolant from heating element.

Installation: 

Filling and bleeding the cooling system. See 17 00 039 BLEEDING COOLING SYSTEM AND CHECKING FOR LEAKS .

Fig 3: Removing Water Hoses

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Remove center console. See 51 16 200 REMOVING AND INSTALLING ODDMENTS TRAY .

Remove trim for instrument panel (lower section). See 51 45 030 REMOVING AND INSTALLING TRIM FOR INSTRUMENT PANEL (LOWER SECTION) .

Remove steering column. See STEERING COLUMNS .

Unclip air duct (1) on both sides and pull out in direction of arrow.

Fig 4: Releasing Air Duct Clip

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Release screws (1).

Unclip retainers (2) and remove cover for heater element (3) in direction of arrow.

Fig 5: Removing Heater Element Cover

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Detach air flap (1) in direction of arrow from shaft.

Unclip retainer (2).

Release screws (4) and pull housing section (3) in direction of arrow out of guide.

Fig 6: Removing Housing Section From Guide

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Screw on hose clamps (1) and detach pipes in direction of arrow.

Installation: 

Replace sealing rings.

Ensure sealing rings and hose clamps (1) are correctly seated.

Pull out housing section (2) in direction of arrow.

Pull out heater element (3) in direction of arrow.

Fig 7: Detaching Pipes

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