Part I: Notes

WARNING: This page is about a different car, the 2009 Audi A4, 2008 Audi A4, 2007 Audi A4, 2006 Audi A4, and 2005 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Part II Part II

Part III Part III

Part IV Part IV

Fig 1: Turbocharger, Component Overview - Part I

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1 - Line for crankcase ventilation

2 - EVAP line

3 - Turbocharger and vacuum diaphragm

Removing and installing → Vacuum diaphragm for turbocharger, removing and installing
Checking → Exhaust turbocharger vacuum diaphragm, checking
Adjusting → Vacuum diaphragm for turbocharger, adjusting

4 - Seal

Replace

5 - Nipple

6 - Hose

7 - 8 Nm

8 - Hose

9 - 3 Nm

10 - Wastegate Bypass Regulator Valve N75

11 - Hose

12 - 7 Nm

13 - Bracket

14 - 7 Nm

15 - Turbocharger Recirculating Valve N249

Note installation position. Refer to → Installation position of Turbocharger Recirculating Valve N249

16 - Seal

Replace

17 - Turbocharger

Can only be replaced with exhaust manifold and pressure unit.
Removing and installing → Turbocharger, removing and installing

18 - Gasket

Replace

19 - 9 Nm