Replacing Front Muffler

18 10 040 - Replacing front muffler (N62TU)





Special tools required:
- 00 2 210 00 2 210 Exhaust Pipe Cutter
- 31 2 220 31 2 220 Support Plate





Warning!
Scalding hazard!

Only perform this work after engine has cooled down.





Support front muffler with special tool 31 2 220 31 2 220 Support Plate.





Note:
If the cutting lines are not identified by notches in the pipes, they must be determined by means of the pipe lengths on the new front muffler (1).

Carry over cutting lines to faulty front muffler (1) and mark out.





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





Note:
Texts refer to and illustrations show the left side. The procedure is identical for the right side.

Unfasten screw connection.

Slacken ball band clamp (1) from exhaust pipe.

Installation Note:
- Replace ball band clamps.
- Apply a thin coating of copper past to contact surface between ball and socket.
- When tightening down ball band clamps, press exhaust system against both manifold flanges in order to achieve gap-free installation.
- Install ball band clamp at right angles to exhaust pipe.
- Tightening torque 18 31 1AZ 18 31 Exhaust System.





Release screws and remove holder (1).

Tightening torque 18 20 1AZ 18 20 Exhaust System Suspension.





Release screws and remove holder (1).

Tightening torque 18 20 1AZ 18 20 Exhaust System Suspension.

Lower and remove front muffler with assistance of a second person.





Installation Note:
Connect front muffler to rear muffler by means of clamps and align.

Center clamps and tighten down.

Tightening torque 18 20 5AZ 18 20 Exhaust System Suspension.





Installation Note:
Adjust front muffler to fit so that both tail pipes (1) of rear muffler are centrally situated in openings in rear apron.





Installation Note:
Check rubber mount for damage, replace if necessary.

Check exhaust system for leaks.