A4 Quattro Wagon L4-2.0L Turbo (CAEB) (2009)
Compressor Pulley: Adjustments
Drive Plate, Checking Run-Out and Adjusting
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Remove the compressor. Refer to => [ A/C Compressor ] See: Service and Repair
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Clean the drive plate flange - A -.
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Secure a dial gauge - B - using a dial gauge holder - C - (e.g. using dial gauge holder (VW 387)) on compressor.
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Set probe of dial gauge - D - on flange of drive plate - A - with a pre-tension of approximately 1.0 mm.
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Turn compressor drive unit - E - several rotations.
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, refer to => [ Drive Plate, from Compressor ] See: Service and Repair and
readjust drive plate.