A4 Sedan L4-2.0L Turbo (BPG) (2005)
Compressor Pulley: Service and Repair
Belt Pulley (Version "1"), Replacing
Belt Pulley (version "1"), Replacing
NOTE:
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Various pulley designs are installed depending on type of compressor and engine.
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Belt pulley, removing from compressor and reinstalling
1. Bolt
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Replace
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Tightening torque 20 Nm
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Loosening and tightening
2. Drive plate
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Different versions
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Triggered in the event of excessive torque (e.g. compressor stiff)
3. Securing ring
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Replace
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Ensure correct positioning (flat side facing compressor)
4. Belt pulley
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Rubber element of pulley is triggered in the event of excessive torque (e.g. stiff compressor) and pulley just free-wheels without driving
compressor
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Different versions
NOTE: Under certain conditions (e.g. rough engine running), rubber element of pulley may be triggered when there is no compressor or
refrigerant circuit fault.
5. Compressor