18 12 040 Removing and installing/replacing front muffler (N62)

WARNING: This page is about a different car, the 2005 BMW 645Ci and 2004 BMW 645Ci. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

00 2 210
31 2 220

WARNING: Scalding hazard! Only perform these tasks after exhaust system has cooled down.

Support front muffler with lifter and special tool 31 2 220 and secure against falling out.

Fig 1: Supporting Front Muffler With Lifter And Special Tool 31 2 220 (Front Muffler - N62)

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Courtesy of BMW OF NORTH AMERICA, INC.

While installed, mark length (A) with aid of replacement muffler on faulty front muffler.

Fig 2: Identifying Front Muffler Replacement Marks (Front Muffler - N62)

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Courtesy of BMW OF NORTH AMERICA, INC.

Cut both exhaust pipes with special tool 00 2 210 at marked points and deburr.

Fig 3: Cutting Exhaust Pipes With Special Tool 00 2 210 At Marked Points (Front Muffler - N62)

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Courtesy of BMW OF NORTH AMERICA, INC.

Release nuts on holder (1).

Unscrew nuts (2).

Remove primary muffler.

Fig 4: Removing Primary Muffler (Front Muffler - N62)

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Courtesy of BMW OF NORTH AMERICA, INC.

Connect new front muffler with central muffler using clamping sleeves.

Fig 5: Connecting Front Muffler With Central Muffler (Front Muffler - N62)

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Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Nuts point downwards.

Align clamping sleeves so that:

Cutting line is in middle of clamping sleeve.
There is sufficient spacing to adjoining components.