A3 L4-2.0L Turbo (BPY) (2006)
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Check position of grommet - C - in bulkhead for proper seating.
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Seal flange for coolant pipes to heater core - A - and for expansion valve (to evaporator) - B - at pass-through of grommet - C - with silicon
adhesive sealant if necessary (to prevent water from penetrating).
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Connect coolant hoses properly to heater core. Observe markings:
A Supply hose from cylinder head
B Return to the coolant pump
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Reinstall all components removed in reverse order, with the exception of cover for connections on heater core and driver side storage
compartment.