automatic gear snow and sport mode problem

hello i am amasya from mehmet 2002 model 206 automatic gearbox car solenoids changed 3 months ago but like & nbsp; I have a problem before the car is running in the park while snow and sports & nbsp; lights were on for about 1 week vehicle & nbsp; When it was cold on the way, snow and sports lights started to light up with a shifting gear, and most friends say that it was going through a solenoid change, but my ringtones changed 3 months ago. thank you from now ...

Have the gearbox oil checked. If the oil of the gearbox has a bad odor, the linings inside are problematic, if the color is transparent, have the solenoid valves checked again. respect .. & nbsp;

How many years or how many kilometers is the gearbox oil's lifetime? There are those who say that the gearbox oils are lifetime for several forums I have read, what is the accuracy of this, Mr. Lamb?

How does gear oil last for life? It cools the running wheels and the mechanical parts. Do not believe them.