Determining thickness of adjustment shim S

WARNING: This page is about a different car, the 2004 Volkswagen R32. However, it is still accessible from the selected car via links, so may be relevant.

Install complete drive pinion housing with shaft bevel gear and initial adjustment shim S ₃ (1.3 mm thick).

NOTE:

For the initial measurement, an adjustment shim S ₃ of 1.30 mm is inserted. It is designated as S ₃ in the following. After determining the measured value "e" , S ₃ is replaced by the final adjustment shim S ₃ .

Do not insert O-ring.

Fig 1: Identifying Adjustable Ring Dimensions

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Courtesy of VOLKSWAGEN UNITED STATES, INC.

Set adjusting ring of universal measuring device VW 385 to dimension - a - = 38 mm.
Set adjustable ring to dimension - b - = 35 mm.

Fig 2: Identifying Universal Measuring Device VW 385 Components

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Courtesy of VOLKSWAGEN UNITED STATES, INC.

Assemble universal measuring device VW 385 according to illustration. Dial gauge extension VW 385/16 = 12.3 mm long. Set adjustable master gauge VW 385/30 to R _o = 42.70 mm.
Set dial gauge to zero with 2 mm pre-load.
After removing master gauge, slide on VW 385/39 up to stop.

Fig 3: Placing End Gauge Onto Head Of Shaft Bevel Gear

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Courtesy of VOLKSWAGEN UNITED STATES, INC.

Place end gauge onto head of shaft bevel gear.

Fig 4: Inserting Universal Mandrel

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Courtesy of VOLKSWAGEN UNITED STATES, INC.

Insert universal mandrel.
Attach cover and tighten hex bolts.
Using adjustable ring, pull centering disc out far enough, so that universal mandrel can only just be turned by hand.

Fig 5: Turning Universal Measuring Mandrel

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Courtesy of VOLKSWAGEN UNITED STATES, INC.

Measure dimension "e". Turn universal measuring mandrel until dial indicator extension touches end gauge and measure the maximum runout (return point). Measured value is dimension "e" (black numbered area). Example: 0.28 mm
Remove universal mandrel.

NOTE:

Then check again whether dial gauge stands at "0" with 2 mm pre-load when universal adjustable master gauge VW 385/30 is attached, otherwise repeat measurement.