A8 Quattro Sedan V8-4.2L (BGK) (2006)
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Before installing heat exchanger, check condensate drain openings -A- for dirt and clean if necessary.
NOTE:
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Condensate drain must not be impaired by dirt or other deposits.
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Illustration shows drain openings with heat exchangers in position.
Cleaning condensate drain
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Heat exchangers removed:
Insert illuminated angled mirror into opening for heat exchanger and check both drain openings. Clean condensate drains if necessary using a piece
of wire, for example.
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Heat exchangers in position:
With condensate hose detached, clean condensate drains from outside using a piece of wire, for example.
Perform further installation in reverse order, paying attention to the following:
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Check attached foam seal before fitting heat exchanger.
NOTE:
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Seal may curl up on insertion if not correctly bonded on.
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Cold air may flow past heat exchanger if seal is damaged or not properly fitted.
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Secure all connections with standard clamps or with retainers approved for these connections.
NOTE: Clamps -A- and -B- may be difficult to attach with the heating and A/C unit installed.
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Retainers -A- and -C- should be used so as to permit service replacement of heat exchangers with heating and A/C unit in position.