A8 Quattro Sedan V8-4.2L (BVJ) (2008)
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1. For Heated Oxygen Sensor (HO) (G39)
2. For Oxygen Sensor (O) Behind Three Way Catalytic Converter (TWO) (G130)
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Free up electrical wires to oxygen sensors.
‹› Ignore items - 3 and 4 -.
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Remove bolt - arrow - at torque support mount.
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Remove bolts - arrows -.