LEMON Manuals: Even more car manuals for everyone
Home >> BMW >> 2021 >> 840i 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 215 (Exhaust System -- Repair (G02)) >> 18 32 Catalytic Converter >> 18 32 005 Removing and installing/replacing catalytic converter (X4 M40i 2020-) >> Install catalytic converter

Install catalytic converter

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2025 BMW X4, 2024 BMW X4, 2023 BMW X4, 2022 BMW X4, and 2021 BMW X4. However, it is still accessible from the selected car via links, so may be relevant.
TIGHTENING TORQUE SPECIFICATIONS

Catalytic converter to exhaust turbocharger 
V-band clamp
Replace V-band clamp.
Tightening torque  19 Nm
G12730979Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUE SPECIFICATIONS

Catalytic converter to holder 
M8 Nut
Replace nut.
Tightening torque  19 Nm
G12730980Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: The following step(s) must be performed if the specified component(s) is/are installed.
G14193081Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work