18 32 605 Removing and installing both connecting pipes on catalytic converter (N63 hybrid)

WARNING: High-voltage system - danger to life!

WARNING: The following points must be strictly observed prior to starting work:

WARNING: Scalding hazard!
Only perform this work after engine has cooled down.

Necessary preliminary tasks:

NOTE: Texts refer to, and illustrations show, the left side. Procedure on right side identical.

Release nuts (1).

Tightening torque 18 31 2AZ .

Fig 1: Identifying Connecting Pipes Nuts

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NOTE: Texts refer to, and illustrations show, the left side. Procedure on right side identical.

Installation:

Remove seal.

Clean sealing faces.

Replace seal.

Fig 2: Identifying Sealing Face

Courtesy of BMW OF NORTH AMERICA, INC.

Check exhaust system for leaks.