I have found this sometime ago but unsure if it will do your year, I have also not tried until I do a lot more digging, as I don’t want to change anything and cause issues.
So I take no responsibility of its correctness or what you may mess up it’s entirely your choice
Found on another site.
The method to enter the hidden menu of the dashboard :
Turn on ignition (Level 2)
Press the right button (check control), and keep the button pressed (10 seconds approximately). It appears first Check Control and after 10 seconds "TEST Nr 01 "
Now press the left button : No. of the car is displayed.
You have to sum the last 7 digits ex DG23278 = 22, of course, ignore the letters.
Repeatedly press the right button until "test # 19" displays.
Then press the left many times that the amount calculated above.
Press the right button, the menu is unlocked!
The functions are then available:
1/Info vehicle (no serial number and software version)
2/Test instrumentation, all the dashboard lights switch on
3/Intervalle of service and number of days since the last
4/instant consumption
5/ average consumption and range
6/Jauge gasoline in liters
7/temperature engine - in turn - temp ext
8/current speed (digital)
9/Voltage
10/Languages
11/Setting AM / PM
12/ average speed arrival time
13/Test bell (gong)
14/memory errors 00000 = no error
15-18 don't know
19/unlocking menus 3-18
20/ calculating correction for the consumption
21/Reset = the same as if disconnecting the battery.
I founded this information on a french forum, and tested it, as I said, it works, but when drinving the car, I can not display informations in real time as for exemple
Digital current speed, or current consumption.
Someone know this hidden menu and procedure (I'm sure yes) and do you know how we can set some informations to be readable with other board computer information when driving ?
You dont say why you want in?
J
