18 00 020 Removing and installing complete exhaust system (N55 Hybrid)

WARNING: This page does not describe the selected car, but rather 50 other vehicles, including the 2016 BMW M5, 2016 BMW ActiveHybrid 5, 2016 BMW 550i xDrive, 2016 BMW 550i, and 2016 BMW 535i xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

31 2 220

WARNING: High-voltage system - danger to life!

The following points must be strictly observed prior to starting work:

Observe SAFETY INFORMATION for handling hybrid cars.

WARNING: Risk of burning!
Only perform this repair work after engine has cooled down.

Danger of injury!

Removal of the exhaust system must be carried out with the assistance of a second person.

Support exhaust system with special tool 31 2 220.

Fig 1: Supporting Exhaust System Using Special Tool (31 2 220)

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Release clamp (1).

Tightening torque 18 31 1AZ .

Fig 2: Identifying Clamp

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Release screws (1).

Tightening torque 18 31 4AZ .

Only if auxiliary heating fitted. Release screw (2) on metering pump.

Tightening torque 18 31 5AZ .

Release screws (3) on underbody panelling.

Remove reinforcement plate (4).

Fig 3: Identifying Reinforcement Plate, Underbody Panelling And Metering Pump Screw

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Picture shows the left side, the procedure for the right side is identical.

Slacken nut (1).

Tightening torque 18 20 3AZ .

Fig 4: Identifying Exhaust System Nut

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Slacken nut (1).

Tightening torque 18 31 3AZ .

Fig 5: Identifying Exhaust System Nut

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Pull off vacuum hose from vacuum unit (1).

Slacken nut (2).

Tightening torque 18 31 3AZ .

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

Fig 6: Identifying Vacuum Hose And Nut

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Picture shows the left side, the procedure for the right side is identical.

Spray bolt (1) and rubber mount with lubricant 5.2 .

Release screw (1).

Installation note:

Risk of damage to screw (1) and retaining plate thread.

Observe screwing sequence .

Firstly apply nut to body at rear.
Then join bolt (1) exactly and secure. If necessary support rear silencer using a suitable jack.
Tightening torque 18 31 3AZ .

Fig 7: Identifying Screw And Retaining Plate Thread

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Installation note:

Check rubber mount for damage.

If necessary, replace damaged rubber mounts.

Check exhaust system for leak tightness.