64 11 207 Replacing heater core

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

Special tools required: 00 9 030

WARNING: Follow NOTES FOR REPAIR WORK ON COOLING SYSTEM .

Necessary preliminary tasks:

Unlock and detach coolant lines (1).

Carefully blow through twin pipes to remove remaining coolant from heater core.

Installation note:

Make sure coolant lines (1) are correctly seated.

Vent cooling system and check for watertightness. See VENTING COOLING SYSTEM AND CHECKING FOR WATER LEAKS .

Fig 1: Identifying Coolant Lines

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Remove INSTRUMENT PANEL TRIM at bottom left.

Release screws (1) and feed out cover (2) towards bottom.

Fig 2: Releasing Screws (1) And Feeding Out Cover (2) Toward Bottom

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NOTE: Have cloths or paper towels ready in order, if necessary, to catch escaping coolant.

Release screws (1) and pull out heater core (2) approx. 10 mm. Release screw (5).

Unclip holder (3) and remove.

Carefully pull twin pipes (4) out of heater core (2) and if necessary catch escaping coolant.

Carefully pull out heater core (2).

Installation note:

Fins of heater core (2) must not be damaged.

Make sure heater core (2) is correctly seated.

Fig 3: Identifying Screws, Heater Core, Twin Pipes And Holder

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Installation note:

Replace sealing rings (1).

Use special tool 00 9 030 to fit sealing rings (1) without damaging them.

Make sure twin pipes (3) are correctly seated on heater core (2).

Fig 4: Identifying Sealing Ring, Heater Core And Twin Pipes

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