Hello. So I was driving my beetle the other day and I noticed that when I pressed On the gas the car wasnt going. It will go but very slowly. the check engine light has not came on. I've had this problem before and I changed the speed sensor. The cel came on that time and it gave me a code. Changed the speed sensor and everything was fine. Idk Wat to do now. Should I get the transmission fluid changed ?? Any info will help.