Replacing center silencer (B48, B46) (Cooper S)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2021 MINI Cooper, 2020 MINI Cooper, 2019 MINI Cooper, 2018 MINI Cooper, and 2017 MINI Cooper. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Risk of burning!

Only perform this repair work after engine has cooled down.

Injury hazard!

Call on the assistance of a second technician to remove the center silencer.

Preliminary work needed:

Use a suitable jack to support and secure the center silencer against falling.

Remove front TENSION STRUTS .

Removal:

Loosen screws.

Remove cover (1).

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NOTE: If the separation point is not marked by a punch mark in the pipe, determine the separation point by means of the pipe length on the new center silencer.

Carry over separation point to faulty center silencer and mark.

Secure center silencer against falling off.

Cut through exhaust pipes at marked point with a suitable tool.

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Courtesy of BMW OF NORTH AMERICA, INC.

Release clamp (1).

Replace clamp (1).

Parts : Clamp.

Lower and remove center silencer with assistance of a second technician.

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Installation:

Install new center silencer.

Tighten clamp (1).

Tightening torque 18 20 1AZ .

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Adjust new center silencer and connect by clamp to rear silencer.

Center clamp and tighten down.

Tightening torque 18 20 3AZ .

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Courtesy of BMW OF NORTH AMERICA, INC.

Position cover (1).

Tighten the screws.

G11645947

Courtesy of BMW OF NORTH AMERICA, INC.

Required follow-up work:

Check exhaust system for leak tightness.

Install front TENSION STRUTS .