Allroad Quattro V6-2.7L Turbo (APB) (2002)
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Insert outer race for taper roller bearing for drive pinion with shim "S4*" (1.0 mm thick) into bearing plate.
Note: For measurement purposes a shim "S4" of 1. 0 mm is initially inserted which is designated "S4*" After determining measurement "e" "S4*"
will be replaced by the correct shim "S4. "
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Insert completely assembled drive pinion in transmission housing.
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Fit bearing plate with dowel sleeves and tighten to 25 Nm.
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Turn drive pinion with hollow shaft five turns in both directions so that the taper roller bearings settle.
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Assemble measuring equipment, use a 30 mm dial gauge extension.
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Set dial gauge (3 mm measuring range) to "O" with 2mm preload.
Note: The tip of the dial gauge must be positioned on center of drive pinion.
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Lift drive pinion, without turning, and read off play on dial gauge.
Measurement in example: 0.90 mm
Note: If the measurement has to be repeated, the drive pinion with hollow shaft must be turned 5 turns in each direction to settle the taper roller
bearings. Set dial gauge again to "0" with 2 mm preload.
Formula:
"Stotal" = "S4*" + measurement bearing preload
Example:
Inserted shim "S4*" 1.00 mm
+ Measured value (example) 0.90 mm
+ Bearing preload (constant) 0.15 mm
= Total shim thickness "Stotal" for S3 + S4