Determine the code of the radio or navigation system before disconnecting the battery. This does not apply for radio and navigation systems installed at the works see → Chapter.
–
Switch off all electrical components and take out the ignition key.
–
Remove battery cover -1-, to do so press the release button -arrow-.
–
Release nut -arrow- and only disconnect earth strap of battery.
Note
If both terminals are disconnected, only then disconnect pole terminal (-) from battery earth.