A4 Sedan L4-1.8L Turbo (AWM) (2001)
Checking preload for tapered roller bearing for pinion shaft
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Turn pinion shaft 5 rotations in each direction to seat tapered roller bearing.
Notes:
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If the pinion shaft cannot be turned by hand, install a M10 x 20 bolt into face of pinion shaft and turn the pinion shaft at this bolt using tool.
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Remove bolt after fuming pinion shaft..
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Install measuring tools and secure to transmission housing with bolt (arrow).
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Attach dial indicator (3 mm measuring range) to center of transmission cover and set to O with 2 mm preload.
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Loosen transmission cover bolts and turn pinion shaft.
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If correct shims have been selected, dial indicator will now indicate the following value: 0.05-0.15 mm.
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Tighten transmission cover bolts to 22 Nm (16ft.lb).
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Remove measuring tools.
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Turn pinion shaft 5 rotations in each direction to seat tapered roller bearing.
Calculating dimension "e"
Note: Dimension "e" is required to determine the final shim thickness of S3 and S4.
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Set adjustment rings of universal mandrel using VW385/1 measuring bar to the following measurements:
Dimension -a- = 35 mm
Dimension -b- = 75 mm