I have now 20 000 miles and the maintenance B appear but i never saw any figure near the letter like B1, A1 etc ...

Is it normal ? may be it won't display 1 just 2,3,4

 

The 1 means tire rotation, and you should have seen it several times in 20,000 miles.

Do you do your own maintenance and reset the MID yourself before it shows maintenance due, or do you have it done when recommended and have it reset then? Either way, you should have seen the 1.

If you reset the MID before the 15% remaining or further messages are seen, it should still tell you about the tire rotation being due. It is not normal and either you missed seeing it or something is wrong.

 

I always bring it to my dealer when the MID said maintenance soon, but i never saw any number near the letter.
Reset is done by my dealer

every 5000 miles about i have a new maintenance

Since the first maintenance the guy asked wich number A1 or A2
I said there's no number, they check and said, then it's number 1

 

You won't get a 2 until around 30,000 miles. The 2 is replace air filter and dust and pollen filter (the filter in the cabin for the air conditioning), and inspect the drive belt. The service manual gives the 30,000 mile figure for the dust and pollen filter, but doesn't for the air filter, but the severe conditions are the same so I figure the normal condition will be the same also.

The dealer should be able to check your MID anytime to see if any additional services are due, but if your second oil change was done as recommended by the MID, you should have gotten an A1 or a B1.