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Home >> BMW >> 2018 >> M3 Automatic DCT Trans >> Repair and Diagnosis >> Engine Mechanical >> Exhaust >> Exhaust System - Repair (F80) >> 18 00 Complete Exhaust System >> 18 00 018 Removing and installing complete exhaust system (S55)

18 00 018 Removing and installing complete exhaust system (S55)

WARNING: Danger of burning and other injuries!
This repair work may only be carried out on an exhaust system which has cooled down.
Removal of the exhaust system must be carried out with the assistance of a second person.

Necessary preliminary work: 

Removal: 

Slacken nut (1).

G13691331Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

G13691332Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Remove reinforcement plate (2).

G13691333Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Slacken nut (2).

G13691334Courtesy of BMW OF NORTH AMERICA, INC.

Slacken nut (1).

G13691335Courtesy of BMW OF NORTH AMERICA, INC.

Unlock and disconnect the plug connection (1).

Slacken nut (2).

G13691336Courtesy of BMW OF NORTH AMERICA, INC.

Unlock and disconnect the plug connection (1).

Slacken nut (2).

Lower and remove exhaust system with assistance of a second person.

G13691337Courtesy of BMW OF NORTH AMERICA, INC.

Preparation for installation: 

Check rubber mount for damage, replace if necessary.

Installation: 

Replace the gaskets (1).

Install exhaust system and connect to catalytic converter with the assistance of a second person.

G13691338Courtesy of BMW OF NORTH AMERICA, INC.

Tighten nut (1).

Tightening torque: 18 31 1AZ .

G13691331Courtesy of BMW OF NORTH AMERICA, INC.

Tighten nut (2).

Tightening torque: 18 20 4AZ .

Tighten screw (1).

G13691334Courtesy of BMW OF NORTH AMERICA, INC.

Tighten nut (1).

Tightening torque: 18 20 4AZ .

G13691335Courtesy of BMW OF NORTH AMERICA, INC.

Tighten down screws (1).

Tightening torque: 18 20 2AZ .

G13691332Courtesy of BMW OF NORTH AMERICA, INC.

Install reinforcement plate (2).

Tighten down screws (1).

Tightening torque: 33 32 11AZ .

G13691333Courtesy of BMW OF NORTH AMERICA, INC.

Tighten nut (2).

Tightening torque: 18 20 3AZ .

Attach plug connection (1), must audibly engage.

G13691336Courtesy of BMW OF NORTH AMERICA, INC.

Tighten nut (2).

Tightening torque: 18 20 3AZ .

Attach plug connection (1), must audibly engage.

G13691337Courtesy of BMW OF NORTH AMERICA, INC.

Required follow-up work: