Hi my CLk 500 was a 6 cly had a v8 put in and it keeps rejecting the transmission onto its 4th one all work was done by qualified mechanics all trannys were tested before fitment works came with trannys i never have had any communication from the onboard computer from the transmission nothing comes up in the cluster for transmission or from the ECG no fault codes at all regarding transmission the car has gone into limp mode at different times the first stage of them going bad is revving out and that happened last night this tranny was fitted march this year i am at a loss disappointed i love this car i can't do a 5th have loads of info if anyone wants to fire questions i can answer i want to know why this is happening please any help much appreciated all in the past 2 years 722.6 transmission