Tip 1 - Battery maintenance
If your vehicle is at a standstill for longer than two days, the main battery switch must be opened.
 
For vehicle parking longer than 1 week
- Check the batteries charge level, and if necessary, charge the batteries.
- Disconnect the electrical connection by disconnecting the negative terminal. Turning off the main battery switch is not sufficient.
- Check the charge level of the batteries regularly at a minimum interval of 8 weeks. Recharge the batteries if necessary. 

Tip 2 - Engine : checking oil level.

Below is the process to check engine oil level. Ensure correct oil level before re-starting your vehicle after a longer standstill.
i.) With engine switch off
ii.) Call up vehicle menu
iii.) Select “vehicle” menu item
iv.) Select “monitoring data” menu item
v.) Select “Engine oil” menu item

Make sure oil level is in between Min and Max range