18 00 020 Removing and installing complete exhaust system (N20)

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 BMW X3, 2016 BMW X3, 2015 BMW X3, 2014 BMW X3, and 2013 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

31 2 220

WARNING: Risk of burning!
Only perform this repair work after engine has cooled down.
Danger of injury!
Removal of the exhaust system must be carried out with the assistance of a second person.

Support exhaust system with jack and special tool 31 2 220 or with a suitable lever and secure against falling down.

Fig 1: Supporting Exhaust System Using Special Tool (31 2 220)

G04742070

Courtesy of BMW OF NORTH AMERICA, INC.

Release clamp (1).

Tightening torque: 18 31 1AZ .

Fig 2: Identifying Exhaust System Clamp

G09946242

Courtesy of BMW OF NORTH AMERICA, INC.

Release nut and remove holder (1).

Tightening torque: 18 31 3AZ .

Fig 3: Identifying Exhaust System Holder

G09946243

Courtesy of BMW OF NORTH AMERICA, INC.

Release nuts (1) and remove holder.

Tightening torque: 18 31 5AZ .

Fig 4: Identifying Exhaust System Nuts

G09946244

Courtesy of BMW OF NORTH AMERICA, INC.

Only 20i:

Unscrew nuts (1).

Tightening torque: 18 31 5AZ .

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

Fig 5: Identifying Exhaust System Nuts

G09946245

Courtesy of BMW OF NORTH AMERICA, INC.

Only 28i:

Pull off vacuum hose (1).

Unscrew nuts (2).

Tightening torque: 18 31 5AZ .

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

Fig 6: Identifying Vacuum Hose And Nuts

G09946246

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Check rubber mount for damage.

If necessary, replace damaged rubber mounts.

Check exhaust system for leak tightness.