61 21 010 Removing and installing (replacing) battery (M5): Notes
Observe NOTES ON POWER SUPPLY / ON INTELLIGENT BATTERY SENSOR (IBS) .
To ensure the correct safety and convenience functions, install only the original battery (battery size and type) stored in the vehicle order. Observe BATTERY REPLACEMENT INFORMATION .
Necessary preliminary tasks:
Disconnect BATTERY NEGATIVE LEAD (1).
Disconnect plug connection (2) of one-pin IBS cable (3).
Release nut (5) of safety battery terminal (4). Tightening torque: 5 Nm
Detach safety battery terminal (4) towards top, lay to one side and secure.
Release nuts (1) and remove retaining bar (2).
Release threaded pin (1) and remove holders (2).
Detach vent (3) in direction of arrow.
Fold both clips (4) open.
Lift out battery (5).
Installation:
Make sure battery (5) is correctly seated in associated mounts.
Replacement:
- Read out fault memory, clear if necessary
- On vehicles with IBS (intelligent battery sensor), REGISTER BATTERY REPLACEMENT