A8L V8-4.2L (BFM) (2004)
Hydraulic Control Assembly - Antilock Brakes: Procedures
Hydraulic control unit, removing and installing
Special tools and equipment
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V.A.G 1331 Torque wrench
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Brake pedal depressor V.A.G 1869/2
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Sealing plugs repair kit, part No. 1H0 698 311A
Installation location:
The hydraulic control unit is installed on the lefthand side of the engine compartment.
Removing:
CAUTION: Do not bend the brake lines.
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Note or request radio code on vehicles with coded radio if necessary.
CAUTION: On vehicles equipped with Audi Telematics by OnStar, switch-off the emergency (backup) battery for the Telematic/Telephone Control
Module prior to disconnecting the vehicle battery.. Switch-on the emergency (back-up) battery after reconnecting the vehicle battery.
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Disconnect battery.
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Remove hex bolts -1 - securing coolant expansion tank