206 Automatic Transmission problem

Hello friends, I have encountered a problem again and hopefully, as you have solved my last problem, we will solve this as well. The vehicle 206 1.4 Xr AUTOMATIC 2001 model and 84.000 km, while I was driving with this vehicle, I stopped at traffic lights and drew my gear from the brake position, I dumped my foot, the vehicle wasted back, and I did not put on the gear. He made a knock between 3500-4000 rpm and switched to gear 1. He made this problem several times during the day. There was no problem. I did nothing, what is wrong with you and how can I solve it? What does it cost? Please help friends, thank you very much in advance.

There is a warning on the screen, writing or snow sports lights are flashing. there may be an oil problem yesterday I changed the solenoids and oil now it looks like it was fine

My friend had been with me, this is the problem, but I changed the oil, then I went the long way, just like your account remained under the car.

no malfunction warned friends snow-sport lights did not flash Solenoid and oil change would be effective

and friends, can you tell us how much this oil change and solenoid processes keep?

I made 500 TL two or three days ago