18 12 542 Replacing front muffler (N73)

WARNING: This page is about a different car, the 2008 BMW 760Li. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

00 2 210

WARNING: Scalding hazard!

Only perform these tasks after exhaust system has cooled down.

Release nuts.

Remove reinforcement plate.

Fig 1: Reinforcement Plate Mounting Nuts

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Cutting line (6) between front muffler (3) and center muffler (2).

Determine pipe length on new front muffler.

Carry over dimensions to faulty front muffler (3) and mark cutting line.

Fig 2: Muffler Components And Assembly

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Cut tail pipe with special tool 00 2 210 at marked point.

Installation:

Deburr cutting line.

Fig 3: Special Tool (00 2 210)

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Release nuts (4).

Release nuts (5).

Connect center muffler to front muffler.

Installation:

Align clamping sleeve so that:

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

Fig 4: Muffler Components And Assembly
Courtesy of BMW OF NORTH AMERICA, INC.

Add final details to vehicle.

Check exhaust system for leaks.