A8L Quattro Sedan W12-6.0L (BSB) (2005)
Housing Assembly HVAC: Overhaul
Bottom Section of Housing and Air Distributor Housing, Disassembly and Reassembly
Bottom Section Of Housing And Air Distributor Housing, Disassembly And Reassembly
1. Seal
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Replace
2. Frame with recirculated-air opening
3. Wiring harness for heating and A/C unit
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Different versions on vehicles with or without Rear A/C Control Head (Climatronic) E265, vehicles manufactured up to and as of 12.03
(different A/C units and grommets, gradual introduction) Parts Catalog
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Electrical connections on heating and A/C unit:
NOTE:
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Mark all connectors before disconnecting from electrical components (risk of interchange)
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After assembly, reattach all wiring harness brackets removed.
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Seal grommets in plenum chamber through which wiring harness is routed into A/C unit (to Fresh Air Blower Control Module J126) or
beneath covers (to Air Flow Flap Motor V71 and to Recirculation Flap Motor V113) with silicone adhesive sealant D 176 001 A3 (to prevent
ingress of water through or past grommet into A/C unit or actuator).
4. Housing lower part
5. Pipe bracket
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For upper left coolant pipe
6. Pipe bracket
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For coolant pipe, lower left
7. Oval head self-tapping screw
8. Pipe bracket
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For right coolant lines
9. Grommet
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For coolant pipe, lower left
10. Grommet
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For upper left coolant pipe
11. Grommet
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For right coolant lines