A4 Quattro Cabriolet L4-2.0L Turbo (BWT) (2009)
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Lightly move knurled bolt back and forth, this causes the valve keepers to be pressed apart and captured in the installation cartridge.
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Release pressure fork (VAS 5161/2).
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Remove installation cartridge (VAS 5161/8).
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Remove valve stem seals using Valve Seal Removal Tool (3364).
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In the event valve stem seal driver (3364) cannot be used due to constrained spatial arrangements, drive out spring dowel sleeve - arrow - using a
drift and remove impact device.
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Place lower part of valve seal removal tool ( 3364) onto valve stem seal.
