18 00 020 Removing and installing complete exhaust system (N62, N62TU)

WARNING: This page is about a different car, the 2010 BMW 550i, 2009 BMW 550i, and 2008 BMW 550i. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

31 2 220

WARNING: Scalding hazard!
Only perform this work after engine has cooled down.

Support exhaust system with special tool 31 2 220.

NOTE: Weight of exhaust system is approx. 40 kg.

Fig 1: Identifying Special Tool (31 2 220)

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Release flanged nuts on both exhaust manifolds with integrated catalytic converter.

Installation:

Replace self-locking nuts.

Tightening torque, 18 31 3AZ . See EXHAUST SYSTEM - TIGHTENING TORQUES.

Fig 2: Locating Flanged Nuts Of Exhaust Manifolds

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Release nuts.

Installation:

Tightening torque 18 20 1AZ. See EXHAUST SYSTEM - TIGHTENING TORQUES.

Fig 3: Locating Nuts

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Release screws.

Remove reinforcement plate.

Installation:

Tightening torque 51 61 7AZ. See BODY EQUIPMENT - TIGHTENING TORQUES.

Fig 4: Locating Reinforcement Plate Screws

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WARNING: Risk of injury!
Removal of the exhaust system must be carried out with the assistance of a second person.

NOTE: Weight of exhaust system is approx. 40 kg.

Detach rubber element from holder.

Fig 5: Locating Rubber Element From Holder

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Release nut.

Remove holder of rear muffler.

Installation:

Tightening torque 18 20 3AZ. See EXHAUST SYSTEM - TIGHTENING TORQUES.

Fig 6: Locating Holder Of Rear Muffler With Nuts

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Release nut.

Remove holder on tailpipe.

Detach hose from vacuum unit.

Carefully lower exhaust system.

Fig 7: Detaching Hose From Vacuum Unit

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