Audi Q7 sline 2007

Dear sir, 

my Q7 had a flat battery I jump start it & went to Audi Centre they fixed it by saying that battery terminal was loose & also I ask them to change AC air filter.after work they took Q7 for test drive & took a while & when they came bk & handover my car it has a engine check light ON & when I ask them they said ok we check & now it’s been 2wks they can not fix the light even when they hand over me car it has a slipping transmission too which was surprising for me. 

The codes showing on computer are as follows please guide me what sort of codes are these mechanical related or software related please help

F125,,G182,G195,N88 valve1

pleqse Guide ne my car is still in Audi Centre 

very kind regards