Lock carrier, removing

See Caution before beginning repairs on electrical system  in ENGINE, REMOVING AND INSTALLING .

• Move gear selector lever into position "N".
• Obtain code on vehicles with coded radio/integrated radio and navigation system.
• Turn off ignition and remove ignition key.
• Turn battery cover latches (arrows) counter-clockwise.
  Fig 1: Identifying Battery Cover Latches

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• Lift upward on cover to remove.
• Disconnect ground strap on negative terminal -arrow- of battery.
  Fig 2: Disconnecting Ground Strap On Negative Terminal -Arrow- Of Battery

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• Recover refrigerant from refrigerant circuit:

  See A/C REFRIGERANT SYSTEM (R-134A), DISCHARGING .

  WARNING: Steam or hot coolant can escape when opening expansion tank cap. Cover cap with cloth, and open carefully.
• Open cap on coolant expansion tank.
• Remove both front wheels.
• Release fasteners -1- to -4- and remove noise insulation.
Fig 3: Removing Noise Insulation
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• Unbolt left bracket for noise insulation (arrows).
  Fig 4: Unbolting Left Bracket For Noise Insulation

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• Remove front bumper:

  See FRONT BUMPER (AUDI RS6) .

• Disconnect wiring harness above air ducts.
• Remove air cowls -1- in front of both charge air coolers.
Fig 5: Removing Air Cowls In Front Of Both Charge Air Coolers
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• Place drip tray V.A.G 1306 below engine.
• Turn drain valve (arrow) on radiator counterclockwise. If necessary attach drain hose to connection.
Fig 6: Locating Coolant Drain Valve (Arrow) On Radiator
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• Remove drain plugs (arrows) and drain coolant from engine block.
Fig 7: Removing Drain Plugs (Arrows) And Drain Coolant From Engine Block
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• Disconnect coolant hose -2- and drain remaining coolant. See Fig 8.
• Disconnect coolant hose -1- at Valve for coolant circulation -N214-.
  Fig 8: Disconnecting Coolant Hoses

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• Extract hydraulic fluid from power-assisted steering reservoir using V.A.G 1358 A.
• Place container underneath connecting points to catch escaping fluid.
• Detach hydraulic hoses for power assisted steering (arrows).
  Fig 9: Detaching Hydraulic Hoses For Power Assisted Steering

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  NOTE: Observe rules for cleanliness when working on automatic transmission. See RULES OF CLEANLINESS WHEN WORKING ON AUTOMATIC TRANSMISSIONS .
• Disconnect ATF pipes (arrows).
Fig 10: Disconnecting ATF Pipes
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• Disconnect oil lines at oil cooler (arrows).
Fig 11: Disconnecting Oil Lines At Oil Cooler
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• Remove bolts -2- and -3-. See Fig 12.
• Disconnect coolant hoses -1- and -4-.
Fig 12: Disconnecting Coolant Hoses
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• Pull off bottom coolant hose retaining clip (arrow) and remove coolant hose from radiator.
Fig 13: Pulling Off Coolant Hose From Radiator
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• Remove bolts (arrows).
• Disconnect refrigerant lines from air conditioner compressor.
Fig 14: Disconnecting Refrigerant Lines From Air Conditioner Compressor
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• Remove retaining screws (arrows) for refrigerant line from lock carrier.
• Cut through cable ties along line.
Fig 15: Removing Retaining Screws For Refrigerant Line From Lock Carrier
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• Unscrew bolt (arrow) and detach refrigerant line from condenser.
Fig 16: Unscrewing Bolt And Detach Refrigerant Line From Condenser
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• Remove quick-release screws -1- and -2- and remove engine cover upward (arrows).
Fig 17: Removing Quick-Release And Lifting Engine Cover Upward (Arrows)
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• Remove cover (arrow) at power steering fluid reservoir.
Fig 18: Removing Cover At Power Steering Fluid Reservoir
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• Loosen hose clamps -1- and -3- and remove air guide hoses. See Fig 19.
• Remove bolt -2- for securing air filter.
Fig 19: Removing Bolt For Securing Air Filter
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• Remove bolt -1- at left bracket for air filter housing. See Fig 20.
• Disconnect hose for crankshaft housing ventilation at retaining clip -2-.
Fig 20: Disconnecting Hose For Crankshaft Housing Ventilation At Retaining Clip
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• Remove right securing nut (arrow) for air filter housing.
Fig 21: Removing Right Securing Nut For Air Filter Housing
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• Pull air filter housing at rear edge a short distance upward
Fig 22: Pulling Air Filter Housing At Rear Edge A Short Distance
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• ...and disconnect electrical harness connectors (arrow) at both Mass Air Flow (MAF) sensors.
  Fig 23: Locating MAF Sensor Harnesses

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• Remove air filter housing.
• Seal openings of rear air guide line. For example, use clean pieces of foam (arrows), so that no small pieces can fall in.
Fig 24: Sealing Opening Of Rear Air Guide Line
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• Remove bolts (arrows) at both air guides and remove air guides at lock carrier.
Fig 25: Removing Air Guides At Lock Carrier
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• Unplug connector (arrow) for headlights on both sides.
Fig 26: Unplugging Connector For Headlights
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• Remove electrical connectors -1- to -3- from retainer and disconnect.
  Fig 27: Removing Electrical Connectors

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• Move lines and hoses clear.
• Disconnect electrical harness connector (arrow) for Coolant Fan -2- -V177-.
Fig 28: Disconnecting Electrical Harness Connector For Coolant Fan -2-, -V177-
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• Unplug electrical connector (arrow) from High Pressure Sensor -G65-.
Fig 29: Unplugging Electrical Connector From High Pressure Sensor
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• Disconnect electrical harness connector (arrow) for Outside Air Temperature Sensor -G17-.
Fig 30: Disconnecting Electrical Harness Connector For Outside Air Temperature Sensor
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• Remove bolt -1-.
• Remove coolant hose -2-.
Fig 31: Removing Coolant Hose
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• Disconnect coolant hoses -1- and -2-.
  Fig 32: Disconnecting Coolant Hoses

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• Remove hood release cable at radiator support.

  See HOOD, FRONT .

• Remove bolts (arrows) on left and right sides.
Fig 33: Removing Bolts On Left And Right Sides Of Lock Carrier
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• Remove bolts at left and right of impact absorbers (arrows).
  NOTE: A second technician is required to remove the lock carrier.
Fig 34: Removing Bolts At Left And Right Of Impact Absorbers (Arrows)
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• Remove lock carrier and set aside so it cannot topple.