S4 V8-4.2L (BHF) (2004)
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Position left cover for timing chain and tighten bolts as follows.
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Apply sealant beads - arrow -, as shown in illustration, on clean sealing surfaces of right 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 right cover for timing chain.
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Position right cover for timing chain and tighten bolts as follows.
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Install sealing flanges for camshaft adjuster with new sealing rings on left and right covers for timing chain - arrows -.
The rest of the installation is performed in reverse order of removal. Note the following:
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Install seal for crankshaft - timing belt side
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Install cylinder head cover
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Install exhaust manifold