RS 4 Quattro Cabriolet V8-4.2L (BNS) (2008)
‹› A plastic sleeve - A - is supplied with new valve shaft seals.
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Place plastic sleeve - A - on valve stem to prevent damage to new valve stem seals - B -.
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Lightly coat sealing lips of valve stem seal with oil.
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Push valve stem seal onto plastic sleeve.
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Carefully press valve stem oil seal onto valve guide using Valve Stem Seal Driver (3365).
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Remove plastic sleeve again.
If the valve keepers were removed from the installation cartridge, they must be inserted into Valve Insertion Device (VAS 5161/18 ) next.