A4 Cabriolet L4-1.8L Turbo (AMB) (2005)
Compressor Clutch Hub: Service and Repair
Run-Out Of Drive Plate With Overload Protection, Checking and Adjusting
Run-out Of Drive Plate With Overload Protection, Checking And Adjusting
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Remove compressor.
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Clean flange at drive plate - A -.
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Install dial gauge - B - with dial gauge bracket - C - (e.g. special tool, bracket 387) to compressor.
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Install measuring leads 1 2 of dial gauge - D - to flange of drive plate - A - with a pre-tension of approx. 1.0 mm.
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Give compressor drive unit - E - several turns.
Specified value: Run-out deviation less than 0.21 mm (run-out of dial indicator, difference between lowest and highest measured value max. 0.2
mm)
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If run-out deviation exceeds 0.2 mm, loosen bolts at drive plate and readjust drive plate.