You will not find this in the manual, so probably not everyone knows that without any additional devices and without visiting Dealership you can test most of the indicators from the dashboard and change some settings in on-board computer. For example, I use this to change units of the fuel consumption from mpg to litres/100 km. It can be done "in-house", and the key in this case is code "60 d15". I will write about this in another article, first we need to enter to the service mode.