A8 Quattro Sedan V8-4.2L (BVJ) (2008)
Housing Assembly HVAC: Removal and Replacement
Removing
Removing
NOTE:
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On removal, note down bolt lengths and assignment for re-installation.
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All cable ties and other wiring harness fasteners released or cut open on removing air conditioner unit are to be re-attached in same position on
installation.
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Drain refrigerant circuit:
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Switch ignition on.
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Move power seats to rearmost position.
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Switch off ignition.
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Remove dust and pollen filter
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Remove E-box cover and engine control module.
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Remove dome brace with reinforcement to cowl panel trim.
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Remove windshield wiper completely.
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Remove pump valve unit.
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Protect driver and passenger seat using seat cover.
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Disconnect negative terminal clamp from Battery A.
NOTE:
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Before disconnecting Battery A, obtain anti-theft radio security code if necessary.
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On vehicles with electrically adjustable seats, move the seats back as far as possible before disconnecting the Battery A.
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Remove dash panel complete with dash panel cross member.
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Remove brake master cylinder and brake booster.
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Remove complete foot pedal assembly with mounting bracket.
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Disconnect refrigerant lines from evaporator connection.
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Remove Rotation Rate Sensor G202
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Remove brackets - A - and - B - (depending on A/C unit version, only brackets - B - or - A - are installed).
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Remove air guides to footwell vents.
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Disconnect evaporator drain hoses from heating and A/C unit
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Disconnect harness connectors to heating and A/C unit.