Removing and installing pulley, version "2": Audi A8 D4

🧭 Before you start

Fits: Audi A8 D4 (4H, 2010–2017)

• Special tools named: pin wrench

Don't miss

• When prising off drive plate (A), take care not to damage collar of pulley (C).There are different types of pulley (C) and drive plate (A). Attention must therefore be paid to precise assignment. Electronic parts catalogue

🔩 Torque settings

Values can differ between engine variants — check the code stamped on your block.

ℹ️ Always cross-check the exact figure against your vehicle's factory manual before final tightening — a wrong torque can damage the engine. These values are extracted from workshop data and may not cover every variant or revision.

📋 Procedure

1. Perform preparations Preparations for renewing pulley.
2. Unscrew bolt (A) (tightening torque: 20 Nm). [Note: When loosening and tightening bolt (A), counterhold drive plate (B) with commercially available pin wrench (C) (pin diameter 5.0 mm).Bolt (A) must be renewed (due to locking fluid).Clean thread in shaft of air conditioner compressor before inserting new bolt.Should it not be possible to detach the pulley with the air conditioner compressor in position, detach the compressor from the engine Detaching air conditioner compressor from holder/attaching - vehicles with 6-cyl. TDI engine.] — 20 Nm (15 lb-ft)
3. Carefully and evenly prise off drive plate (A) using 2 screwdrivers (B). [Note: When prising off drive plate (A), take care not to damage collar of pulley (C).There are different types of pulley (C) and drive plate (A). Attention must therefore be paid to precise assignment. Electronic parts catalogue]
4. Remove circlip (A).
5. Detach pulley (B). [Note: Renew circlip (A).When fitting circlip (A), take care not to bend it open more than necessary.Ensure that circlip (A) is fitted correctly. Bevelled side (C) faces away from air conditioner compressor (flat side faces compressor). Make sure circlip is properly positioned in groove at compressor flange.Clean compressor flange before installing pulley; it should be easy to attach pulley. It should be possible to attach the component without having to exert force.]

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