A8 Quattro Sedan V8-4.2L (BGK) (2006)
Radiator: Procedures
Converting to a Radiator with Bypass
Procedure
‹› Radiator is removed.
On the installed fan shroud, draw a hole according to dimensions - a and b - as shown in the illustration.
‹› Dimension - a - = 136 mm.
‹› Dimension - b - = 23 mm
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Drill a 32 mm diameter hole.
‹› The hole must be pre-drilled and then drilled to 32 mm diameter using the stepped quick helix drill.
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Disconnect upper right coolant hose from the coolant pipe - arrow -.
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Disconnect the coolant hose - 1 - from the ventilation lines.