Removing the lambda oxygen sensor

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.

Preliminary work

Refer to REMOVING THE ACOUSTIC COVER .

Lambda oxygen sensor

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WARNING: Hot surfaces.
Risk of burning!

Perform all work only on components that have cooled down.

NOTE: RISK OF DAMAGE
Damage to wires when disconnecting connectors and plug connections.
Sheared wires can cause a short circuit.

Do not pull on wires when disconnecting connectors and plug connections.

NOTE: The cable of the Lambda oxygen sensor is black. The installation location of the Lambda oxygen sensor is in front of the catalytic converter.

Unlock connector (1) with screwdriver (2) and remove from the carrier plate.
Disconnect the connector (1).

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Detach the oxygen sensor cable (1) in the marked areas.

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Release and remove the control sensor (1) with the special tool 0 491 074 (11 7 020) .

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