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Home >> BMW >> 2021 >> 840i 2D Convertible >> Repair and Diagnosis >> Engine Mechanical >> Exhaust >> Exhaust System -- Repair (G14, G15, & G16) (1 Of 2) >> 18 32 Catalytic Converter >> 18 32 060 Removing and installing/replacing the catalytic converter (cylinders 5 to 8) (M850i xDrive Gran Coupe sedan) >> Removing the catalytic converter for cylinders 5 to 8

Removing the catalytic converter for cylinders 5 to 8

WARNING: Hot surfaces  .
Risk of burning! 
  • Perform all work only on components that have cooled down.
WARNING: Vehicle may slip off the vehicle hoist if the vehicle hoist is handled incorrectly  .
Danger! Immobilization period-threatening injuries! 
WARNING: RISK OF DAMAGE 
Mechanical effects  .
Paint damage  .
  • Mask those working areas at risk with yellow plastic adhesive tape.
  • Remove and install heavy or bulky components with the aid of another person/other persons.
NOTE: TECHNICAL INFORMATION 
In order to guarantee the quality of the Driver Assistance functions in vehicles with concealed radar sensors, the component may be repainted only in compliance with the following instructions.
No stickers or films (transparent or colored) may be affixed in the transmission areas of the radar sensors.
If there are no radar sensors fitted, the component may be painted.
The following features can be used to identify whether radar sensors are installed on the vehicle:
Radar sensors are installed at the rear if the triangular warning light is present on the exterior mirror (in the mirror glass or on the mirror frame).
Radar sensors are installed at the front and rear if the triangular warning light is present on the exterior mirror (in the mirror glass or on the mirror frame) in conjunction with optional equipment S5ATA or S5AUA.
No stickers or films (transparent or colored) may be affixed in the transmission areas of the radar sensors.
If there are no radar sensors fitted, the component may be painted.
The following features can be used to identify whether radar sensors are installed on the vehicle:
Radar sensors are installed at the rear if the triangular warning light is present on the exterior mirror (in the mirror glass or on the mirror frame).
Radar sensors are installed at the front and rear if the triangular warning light is present on the exterior mirror (in the mirror glass or on the mirror frame) in conjunction with optional equipment S5ATA or S5AUA.

Preliminary work 

NOTE: TECHNICAL INFORMATION 
In order to be able to remove the catalytic converter for cylinders 5 to 8, the catalytic converter for cylinders 1 to 4 also needs to be removed.
WARNING: Hot exhaust system  .
Risk of burning! 
  • Any work must exclusively be carried out with an exhaust system that has cooled down.