warlok182

hello new hear. so i picked up a 15 cls63 s amg a couple weeks ago and i dont think its shifting right. first off when backing out of garage reverse seams to surge or not engage completely garage is tight fit so ya have to go vslow tap the gas she revs then surge. when in C S S plus imo its shifting way to soon cold motor cold trans oil just going up my street 25-35 mph it will shift all the way up to 4th gear (normal? i have no point of reference) i mostly drive in manual mode and it seams fine but occasionally when down shifting their is a terrble bang you can feel and occasionally on up shift it feels like a huge power dive when ya bang the shift i need to figure it out best i can thanks