WASTEGATE Bypass Regulator Valve And Turbocharger RECIRCULATION Valve Overview

NOTE:

Secure all hose connections using hose clamps appropriate for the model type.

Hose connections and charge air system hoses must be free of oil and grease before installing. For connector couplings, the seal and sealing surfaces must only be lightly oiled. Refer to CHARGE AIR HOSE, DISCONNECTING AND CONNECTING .

The charge air system must be properly sealed.

Replace the self-locking nuts.

Hose clip pliers VAS 6362 or V.A.G 1921 are recommended for installing spring clamps.

Add oil to the turbocharger through the oil supply pipe connection to the turbocharger

After installing the turbocharger, let the engine idle for approximately 1 minute without increasing the engine speed. This ensures adequate oil supply to the turbocharger.

Pay attention to the rules of cleanliness. Refer to CLEAN WORKING CONDITIONS .

Fig 1: Identifying Assembly Overview: Turbocharger - Part I

Courtesy of AUDI OF AMERICA, LLC

Turbocharger
- Can only be replaced with the exhaust manifold and vacuum diaphragm.
- Removing and installing, refer to TURBOCHARGER .
to the Evaporative Emission (EVAP) Canister
Turbocharger Vacuum Diaphragm
- Checking, refer to TURBOCHARGER VACUUM DIAPHRAGM, CHECKING .
- Removing and installing, refer to TURBOCHARGER VACUUM DIAPHRAGM .
Hose
Hose
Bolt
- 3 Nm
Wastegate Bypass Regulator Valve -N75-
Hose
Connection
Clip
Bolt
- 9 Nm
Seal
Turbocharger Recirculation Valve -N249-
- Note the installed position, refer to TURBOCHARGER RECIRCULATION VALVE, INSTALLED POSITION .
Bolt
- 7 Nm
Seal