I have an 06 525i with a 6HP19 A/T i am having a real bad issue when i accelerate my car starts to jerk it doesnt seem to do it when i am in Sport Mode.. All this happened after i did a Transmission service,i replaced my Pan, Fluid, all 6 sleeves, NEW Solenoids! i havent had this problem before i did this job.. what can i do to fix this issue?