BMW X5 Owners & Service Manuals

BMW X5: Mufflers, Petrol

REPLACING REAR MUFFLER (N52K)

Special tools required:

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

Support exhaust system with special tool 31 2 220.

Mufflers, Petrol
Fig. 8: Identifying Special Tool (31 2 220)

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 rear muffler (2).

Carry over cutting lines to faulty rear muffler (2) and mark out.

Mufflers, Petrol
Fig. 9: Identifying Mark On Front Muffler

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

Mufflers, Petrol
Fig. 10: Identifying Special Tool (00 2 210)

Secure exhaust system against falling off.

Release screws and remove holder (1).

Tightening torque 18 20 2AZ.

Mufflers, Petrol
Fig. 11: Locating Screws

Release screws and remove holder (1).

Tightening torque 18 20 3AZ.

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

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

Mufflers, Petrol
Fig. 12: Locating Screws

Installation:

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

Centre clamps and tighten down.

Tightening torque 18 20 5AZ.

Mufflers, Petrol
Fig. 13: Tightening Centre Clamps

Installation:

Align both tail pipes (1) of rear muffler in each case centrally to openings in rear apron.

Mufflers, Petrol
Fig. 14: Identifying Tail Pipes

NOTE: Check rubber mount for damage and replace if necessary.

Check exhaust system for leaks.

REPLACING CENTRE MUFFLER (N52K)

Special tools required:

WARNING: Scalding hazard! These tasks should only be carried out on an exhaust system that has cooled down.

NOTE: If the cutting line is not marked by a punch mark in the pipe, determine the cutting line by means of the pipe length on the new centre muffler (3). Carry over cutting line to faulty centre muffler (3) and mark out.

Secure centre muffler against falling off.

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

Remove centre muffler.

Installation:

Adjust centre muffler to fit and connect with clamps.

Centre clamp and tighten down.

Tightening torque 18 20 5AZ.

Installation:

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

NOTE: Check exhaust system for leaks.

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