A8 Quattro Sedan V8-4.2L (AUX) (2001)
Determine shim thickness "S1"
Ring gear side
S1= S total - S2
Example
S total 1.90 mm
- S2 - 0.86 mm
=S1 = 1.04 mm
Different shim thicknesses make it possible to obtain the required shim thickness precisely. Shims S1 and S2 supplied as replacement parts go to parts
catalog microfiche.
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Install shims determined, if necessary use 2 shims.
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Shim S1 is installed on ring gear side
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Shim S2 is installed on housing side
Checking measurement
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Install differential gear in axle housing, install cover and tighten all bolts to 25 Nm (18 ft. lbs.).
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Turn differential gear several times in each direction so tapered roller bearings settle.
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Install measuring tools.
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Measure backlash four times throughout rotation.
Specification: 0.12 - 0.22 mm
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If backlash is not correct (0.12 - 0.22 mm), the adjustment procedure has to be repeated. The total shim thickness "S total" must not change.
Note:
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The individual measurements must not deviate from each other by more than 0.06 mm.