My daughter's car is in limp home mode.I have 2 different codes 2069(po700)&5093 on 2001 Mercedes-Benz C320

I have a cheap Mercedes code scanner.The 1st code is 2069(po700)(ETC control module) memory is fault. The second 5093 is Sporadically gear implausible or transmission slipping. The only thing that happened was the battery went dead and I put it on a charger. After it started it was limp home mode. I am not sure if I should buy a conductor plate or a transmission control module. Need advice.

Befor you become a parts changer and spend a lot of cash, have your local auto repair shop give you a complete diagnostic check.Goodluck