S4 V8-4.2L (BHF) (2004)
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Position lower cover for timing chain and tighten bolts as follows.
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Remove sealing flanges for camshaft adjuster on left and right covers for timing chain - arrows -.
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Apply sealant bead - arrow -, as shown in illustration, on clean sealing surfaces of left cover for timing chain.
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Groove on lower sealing surface - arrow 1 - must be completely filled with sealant. Sealant bead must stand 1.5 to 2.0 mm above sealing surface.
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Sealant bead on front sealing surface - arrows 2 - must be 1.5 to 2.0 mm thick.
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Screw new seal - 3 - on left cover for timing chain.