BMW 7 Series: Exhaust System, Complete
REMOVING AND INSTALLING COMPLETE EXHAUST SYSTEM (N63)
Notes
WARNING: Scalding hazard! Only perform this work after engine has cooled down.
Risk of injury! Removal of the exhaust system must be carried out with the assistance of a second person.
Necessary preliminary tasks
- Remove rear UNDERBODY PROTECTION
- F03 Only: Remove underbody protection on left and right
Support exhaust system with special tool 31 2 220.
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Fig. 1: Supporting Exhaust System Using Special Tool 31 2 220
Picture shows the left side, the procedure for the right side is identical.
Unscrew nuts (1).
Tightening torque 18 31 1AZ.
Replace self-locking nuts.
Replace seals.
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Fig. 2: Identifying Nuts Of Exhaust System
Picture shows the left side, the procedure for the right side is identical.
Unscrew nuts (1).
Tightening torque 18 20 1AZ.
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Fig. 3: Identifying Nuts
Release screws (1).
Tightening torque 18 20 6AZ.
Only when independent heating is fitted: release screw (2) on metering pump.
Tightening torque 18 20 7AZ.
Release screws (3) on underbody panels.
Remove reinforcement plate (4).
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Fig. 4: Identifying Screw On Metering Pump, Screw On Underbody Panels And
Reinforcement Plate
Picture shows the left side, the procedure for the right side is identical.
Slacken nut (1).
Tightening torque 18 20 4AZ.
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Fig. 5: Identifying Exhaust System Nut
Picture shows the left side, the procedure for the right side is identical.
Unscrew nuts (1).
Tightening torque 18 20 5AZ.
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Fig. 6: Identifying Unscrew Nuts
Picture shows the left side, the procedure for the right side is identical.
Slacken nut (1).
Tightening torque 18 20 5AZ.
Detach hose (2) on vacuum unit.
Lower and remove exhaust system with assistance of a second person.
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Fig. 7: Identifying Nut And Hose On Vacuum Unit
Installation: Check rubber mount for damage.
If necessary, replace damaged rubber mounts.
Check exhaust system for leaks.
REMOVING AND INSTALLING/REPLACING EXHAUST PIPE TRIM IN BUMPER COVER ON LEFT OR RIGHT
Necessary preliminary work
- Remove COVER ON REAR BUMPER TRIM
The following graphic may differ, depending on the engine specification.
Release screws (1).
Remove exhaust pipe cover (2).
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Fig. 8: Identifying Exhaust Pipe Cover With Screws
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Replacing Center Muffler (N63)
Notes
WARNING: Scalding hazard!
Only perform these tasks after exhaust system has cooled down.
Support center silencer with special tool 31 2 220 and a suitable universal
lifter.
Fig. 9: Identifying
Replacing Front Silencer (N63)
Notes
WARNING: Risk of burns! Only perform these tasks after exhaust system
has cooled down.
Necessary preliminary work
Remove rear UNDERBODY PROTECTION
F03 Only:
Remove underbody protection on l
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Massage function
Concept
Depending on the program, the massage function
ensures relaxed muscles and better blood
circulation and can avoid fatigue.
General information
Eight different massage programs can be selected:
Pelvis activation.
Upper body activation.
Full body activation.
Back massage.
Shoulder massag
Flushing Transmission Oil Cooler With Lines (Automatic
Transmission)
Notes
NOTE: Carry out the work steps listed when:
Installing a new or replacement transmission.
Flushing can only be carried out with the automatic transmission removed.
Procedure
Automatic transmission removed.
Connect appropriate adapters (see description below) to oil lines exiting from
automa
