S4 Quattro Cabriolet V8-4.2L (BHF) (2008)
Checking release bearing with mechanically attached plastic ring
Identification: retaining tabs around plastic ring - arrows -.
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The release bearing must be replaced if the plastic ring - 1 - has come loose.
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The release bearing - 3 - must be replaced if the groove - arrow 2 - worn on the plastic ring - 1 - is deeper than 0.8 mm.
Removing and installing guide sleeve
Removing
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Unscrew bolts - arrows - and remove retaining piece - 1 -
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Pull guide sleeve - 2 - out of transmission housing.
Installing
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Replace O-ring in transmission housing.
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Install a thin insulating hose tightly over splines of input shaft.
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Pack space between sealing lip and dust lip with sealing grease G 052 128 A1.
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Lightly oil outer circumference of guide sleeve.
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Push guide sleeve - 2 - over input shaft and into transmission housing.
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Remove insulating hose.
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Secure retaining piece - 1 - with new bolts - arrows -.