18 32 605 Removing And Installing/Replacing Both Connecting Pipes On Catalytic Converter (N63)

WARNING: This page is about a different variant/trim than selected.

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. The procedure is identical for the right side.

Release nuts (1).

Tightening torque. See 18 31 2AZ in 18 31 EXHAUST SYSTEM .

Fig 1: Identifying Exhaust System Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Texts refer to and illustrations show the left side. The procedure is identical for the right side.

Installation:

Remove seal.

Clean sealing faces.

Replace seal.

Fig 2: Identifying Exhaust System Seal Location

Courtesy of BMW OF NORTH AMERICA, INC.