11 65 165 Removing and installing/replacing blow-off valve (N63)

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Necessary preliminary tasks:

Follow diagnosis instruction.
Remove exhaust turbocharger. See applicable procedure: 11 65 025 REMOVING AND INSTALLING/REPLACING EXHAUST TURBOCHARGER, RIGHT, CYLINDERS 1-4 (N63) or 11 65 030 REMOVING AND INSTALLING/REPLACING EXHAUST TURBOCHARGER, LEFT, CYLINDERS 5-8 (N63)

Release screws (1).

Tightening torque 11 65 9 AZ .

Remove blow-off valve (2).

Fig 1: Identifying Blow-Off Valve With Screws

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Check VACUUM CONNECTIONS for correct routing.

Check VACUUM SYSTEM FOR LEAKS .

Assemble engine.