Screw thread

Push out the cover by pressing on the top edge.
See also:
Important features in the engine compartment
1 Vehicle identification number*
2 Jump starting, negative terminal
3 Washer fluid reservoir
4 Jump starting, positive terminal
5 Oil filler neck. 760i/Li: filler neck is located
under a flap. ...
Maintenance
The battery is maintenance-free, i.e., the electrolyte
will last for the life of the battery.
Your service center will be glad to advise you on
questions regarding the battery. ...
Navigation
General information
Map
Split screen settings
Destination guidance with intermediate destinations
...
