S5 Quattro Coupe V8-4.2L (CAUA) (2009)
Compressor Clutch: Specifications
Specification:
Run out deviation is less than 0.21 mm (run-out of dial indicator, difference between smallest and largest measured value 0.2 mm maximum)
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If run-out deviation is greater than 0.2 mm, loosen bolts on drive plate.