Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Battery Control Switch Module BCSM [2016-2020, B4204T23; B4204T27]: Removal
Removal steps in this procedure may contain installation details.
Follow the instructions regarding disconnection and connection, refer to: BATTERY DISCONNECTING AND CONNECTING
Orientation view
Remove the screws.
Remove the marked part.
Torque: M6, 10Nm
Remove the screw.
Torque: Battery cable terminal, to Extra battery, 6.5Nm
Disconnect the connectors.
Note the position of the electrical connectors.
Loosen the nut.
Torque: Nut (M6), to BCSM, 10Nm
Note the position of the electrical connectors.
Loosen the nuts.
Torque: Nut (M8), to BCSM, 24Nm
The graphic shows the back of the component before removal.
Release the catch.
Release the catch.
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.