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Home >> Audi >> 2000 >> A6 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 12 (4.2L V8 5V Bi-Turbo (Engine Code: BCY)) >> Engine - Assembly >> Engine, removing and installing >> Notes

Engine, removing and installing: Notes

WARNING: This page is about a different car, the 2003 Audi RS 6. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Before beginning repairs on electrical system:
  • Obtain anti-theft radio security code.
  • Switch ignition off.
  • Disconnect battery Ground (GND) strap.
  • On vehicles equipped with Audi Telematics by OnStar®, switch-off emergency (back-up) battery for Telematic/Telephone Control Module prior to disconnecting vehicle battery. See Telematics in ON BOARD DIAGNOSTIC (OBD) .
  • After reconnecting vehicle battery, re-code and check operation of anti-theft radio. Also check operation of clock and power windows according to Repair Manual and/or Owner's Manual.
  • After reconnecting vehicle battery on vehicles equipped with Audi Telematics by OnStar®, switch-on emergency (back-up) battery for Telematic/Telephone Control Module. See Telematics in ON BOARD DIAGNOSTIC (OBD) .
WARNING: Ignition must be switched OFF when:
  • Disconnecting ignition wires.
  • Disconnecting fuel injection system wiring.
  • Connecting or disconnecting test equipment leads.
  • Disconnecting battery.
  • Washing engine or engine compartment
CAUTION: Whenever working on fuel supply or fuel injection systems, always observe following rules of cleanliness:
  • Thoroughly clean fuel supply lines and hose connections and surrounding area before disconnecting.
  • Place removed components on a clean surface and cover. Use plastic sheeting or paper. Do not use fluffy rags that could leave lint.
  • Install only clean components. Do not remove replacement parts from packaging until immediately before installing them. Do not use parts that have been stored without packaging (for example in tool boxes, etc.)
  • Avoid working with compressed air when fuel system is open.
  • Replace all tie wraps that were cut and install them in same location from where they were removed.
CAUTION: A/C refrigerant circuit must only be opened by specially trained technicians using proper tools and equipment.
  • DO NOT open air conditioning refrigerant circuit.
  • Disconnect A/C refrigerant line brackets and support points only.
  • Set A/C compressor carefully aside. Avoid damage from bending lines or kinking hoses. Refrigerant lines kink easily.
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