18 32 081 Replacing exhaust pipe with catalytic converter, cyl. 1-3 (N52K)

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

NOTE: If the cutting line is not marked by a punch mark in the pipe, determine the cutting line by means of the pipe length on the new exhaust pipe with catalytic converter (2). Carry over cutting line to faulty exhaust pipe with catalytic converter (2) and mark out.

Fig 1: Carry Over Cutting Line To Faulty Exhaust Pipe With Catalytic Converter

G00497415

Courtesy of BMW OF NORTH AMERICA, INC.

Cut exhaust pipe at marked point with special tool 00 2 210 and deburr.

Fig 2: Cut Exhaust Pipe At Marked Point With Special Tool 00 2 210

G00497416

Courtesy of BMW OF NORTH AMERICA, INC.

Release bolt and remove bracket (1). Tightening torque, see 18 20 1AZ in 20 EXHAUST SYSTEMS SUSPENSION .

Fig 3: Release Bolt And Remove Bracket (1)

G00497417

Courtesy of BMW OF NORTH AMERICA, INC.

Support exhaust system. Release nuts and remove exhaust pipe.

Replace self-locking nuts.
Replace seals.
Tightening torque, see 18 31 2AZ in 31 EXHAUST PIPE WITH MOUNTING .

Fig 4: Release Nuts And Remove Exhaust Pipe

G00497418

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: Connect exhaust pipe to center muffler by means of clamp and align. Centre and tighten down clamp. Tightening torque, see 18 20 5AZ in 20 EXHAUST SYSTEMS SUSPENSION .

Fig 5: Centre And Tighten Down Clamp

G00497419

Courtesy of BMW OF NORTH AMERICA, INC.