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Home >> BMW >> 2017 >> M240i 2D Convertible, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 207 (General Electrical System -- Repair X2 (F39)) >> 61 20 Battery >> 61 20 900 Disconnecting and connecting battery earth lead (X2 2018-2023) >> Disconnecting the negative battery cable of the system battery

Disconnecting the negative battery cable of the system battery

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2023 BMW X2, 2022 BMW X2, 2021 BMW X2, 2020 BMW X2, and 2019 BMW X2. However, it is still accessible from the selected car via links, so may be relevant.

Precondition 

Ignition is switched off.

WARNING: Deactivate the 12-V electrical system  .
Risk of short circuits! Risk of fire! 
  • Make sure that there is no battery charger  connected to the jump start terminal in the engine compartment.
  • For vehicles with additional electrical systems (48 V electrical system, high-voltage vehicle electrical system), this absolutely must be deactivated before  the vehicle battery is disconnected.

Removing rear hood seal 

NOTE: Schematic diagram is for example purposes. Some parts may differ in certain details.