A4 Quattro Sedan L4-2.0L Turbo (BPG) (2005)
Heater Core: Service and Repair
Heat Exchanger, Installing
Heat Exchanger, Installing
Installing
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With heater core removed, check for contamination of air conditioner (by way of heater core duct).
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Remove any dirt or remnants of escaped coolant from air conditioner (e.g. after removing leaking heater core).
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Check seals - A -, - B - and - C - installed to heater core. Only fit heater core with intact seals.
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Moisten new seals - A - slightly with coolant.
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Insert new seals - A - (included in scope of delivery of heater core) in connections of heater core - B
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Slide heater core - C - into air conditioner.
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Remove old clips - A - from both coolant lines - B - and - C -.
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Install new clips - A - (included in scope of delivery of heater core) to both heater core coolant lines as shown.
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Press both coolant lines - B - and - C - into connections of heater core - D -.
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Re-check position of seals between coolant lines and heater core.