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 xDrive30i 2019-2021) >> 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

Holder, catalytic conv. to transmission 
M12x100 Tightening torque  66 Nm
G12702452Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUE SPECIFICATIONS

Catalytic converter/Gasoline particulate filter to holder 
M8x20/M8 nut
Replace screw/nut.
Tightening torque  19 Nm
TIGHTENING TORQUE SPECIFICATIONS

Catalytic converter/Gasoline particulate filter to holder 
M8x20/M8 nut
Replace screw/nut.
Tightening torque  19 Nm
TIGHTENING TORQUE SPECIFICATIONS

Catalytic converter/gasoline particulate filter to exhaust turbocharger 
V-band clamp
Replace V-band clamp.
Tightening torque  13 Nm
G12702462Courtesy of BMW OF NORTH AMERICA, INC.

If installed: Installing differential pressure sensor 

Installing differential pressure sensor 

TIGHTENING TORQUE SPECIFICATIONS

Differential pressure sensor to holder 
hexagon nut M6 Tightening torque  8 Nm
G14298929Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work