A8L Quattro Sedan W12-6.0L (BSB) (2005)
Heater Core: Service and Repair
Right Heat Exchanger (Front Passenger's Side), Removing and Installing
Right Heat Exchanger (front Passenger's Side), Removing And Installing
NOTE: Remove left heat exchanger first.
Removing
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Perform preparatory work involved with heat exchanger removal.
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Remove glove compartment.
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Remove footwell vent.
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Cover carpet under heat exchanger with impermeable sheeting and absorbent paper.
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Slightly moisten contact surface between both coolant pipes -D- and -E- at grommet -C- from inside as well with silicone lubricant (to ensure that
pipes can be moved without changing position of grommet; this illustration shows pipes as viewed from plenum chamber).
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Remove clamps -A- and -B-.
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Take both coolant pipes out of heat exchanger.
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Push both coolant pipes towards plenum chamber.
NOTE: As grommet has been moistened slightly with silicone lubricant in area of coolant pipe penetration, pipes can be moved without grommet
being pushed out of heating and A/C unit.
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Screw out bolts -C-.
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Detach holder.
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Pull heat exchanger -D- out of heating and A/C unit.
Installing