A8 Quattro Sedan V8-4.2L (AUX) (2001)
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Remove 4 securing screws -A- (in passenger compartment).
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Remove 2 securing nuts -B- (in passenger compartment).
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Remove air conditioner housing complete (to interior).
CAUTION! Immediately plug open connections on A/C components and lines to prevent dirt and moisture contamination.
NOTE:
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Check that damper element -C- is correctly located.
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Check coolant hoses to the heater cores (bottom hose = coolant supply, top hose = coolant return).
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Always replace gasket -A- (between plenum and air conditioner housing).
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When installing the air conditioner housing, do not pinch the wiring to the servo motors (in plenum) and do not damage gasket -A- at the stay
bolts.
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Connect coolant hoses to the engine correctly (pay attention to marking made).
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Coolant pump -V50- of pump valve unit must not be operated until after bleeding the cooling system (dry running causes damage to the pump).
For this reason, do not plug in the 2-pin connector to the pump valve unit until after bleeding the cooling system.
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Bleed cooling system
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Check that grommets for coolant hoses between engine compartment and plenum are correctly located after installation.
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Check that condensation drain hoses are correctly located.