Note: Disconnecting the battery clears all entries (such as errors, adaptations) from the BMS control unit memory.
Remove left, right and centre covers.
Caution! Disconnect the battery only with the ignition switched off.
Disconnect the negative battery cable first, then the positive cable.
Disconnect ground cable (2) from the battery.
Disconnect positive cable (1) from the battery.
Clean the battery terminals and grease them with acid-proof battery grease.
Acid-proof battery terminal grease: e.g. Bosch Ft 40 V1.
Installation is the reverse of the removal procedure: pay particular attention to the following.
Caution! Connect the positive battery cable first, then the negative cable.
Route the positive cable vertically (arrow) to the battery post. Make sure that all battery cells are visible through the inspection port in the cover.