A4 Sedan V6-3.2L (BKH) (2007)
‹› If the measurement has to be repeated, the differential must again first be turned 5 turns in each direction to settle the tapered roller bearings.
Formula: "Stotal" = "S2* " + measured value + bearing preload
Determining thickness of shim "S1* "
‹› Provisional shim "S1*" is replaced with final shim "S1" after determining backlash.
‹› Total shim thickness "Stotal" remains unchanged.
Formula: "S1*" = "Stotal" - " S2*"
Refer to for required shims.
Measuring backlash
‹› Install pinion shaft with shims "S3" and " S4".
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Install differential with crown wheel: S1 is installed on cover side, S2 in transmission housing.
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Install cover for final drive and tighten bolts to 20 Nm.
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Insert crown wheel adjusting tool (VW 521/4 ) and (VW 521/12).
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Turn differential 5 turns in both directions so that the taper roller bearings seat properly.
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Secure universal dial gauge bracket (VW 387) to housing.