Remove 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.
WARNING:
Hot surfaces.
Risk of burning!
Risk of burning!
- Perform all work only on components that have cooled down.
Preliminary work
- Refer to REMOVING THE COVER OF THE ENGINE COMPARTMENT AT THE REAR LEFT .
- Refer to REMOVING THE COVER OF THE REAR RIGHT ENGINE COMPARTMENT .
- Refer to REMOVING THE SEAL FOR THE HOOD REAR .
- Refer to REMOVING LEFT AND RIGHT WIPER ARM .
- Refer to REMOVING THE COWL COVER .
- Refer to REMOVING THE FIREWALL UPPER PART .
- Refer to REMOVING THE ACOUSTIC COVER .
- Refer to REMOVING ACOUSTIC COVER AT REAR .
- Refer to REMOVING THE LAMBDA OXYGEN SENSOR .
- Refer to REMOVING TANK COVER ON LEFT AND RIGHT .
- Refer to REMOVING THE CONNECTING SUPPORT FROM THE TUNNEL .
- Refer to REMOVING EXHAUST SYSTEM .
WARNING:
Hot surfaces.
Risk of burning!
Risk of burning!
- Perform all work only on components that have cooled down.
CAUTION:
Heavy component.
Heavy components can lead to injury or damage.
Heavy components can lead to injury or damage.
- Remove and install heavy components with the aid of another person/other persons.
CAUTION:
Component with heavy weight.
Injury hazard!
Injury hazard!
- Note component's center of gravity.
- Support component using a jack.
- Secure component against falling off the jack.
- Version A:
Loosen screw (1).
Loosen nut (2).
- Version B:
Loosen nuts (1).
- Pull off the pressure hose (1) in arrow direction and set it aside.
- Loosen screw (1).
- Feed out V-ribbon clamp (2) on the catalytic converter (3) and remove.
- Guide out the catalytic converter (1) in the arrow direction and remove.
- Make sure that the oxygen sensor monitor (2) is not damaged.