Hey, Ethan here I'm new to the forum. I have a 2006 320d with the Steptronic transmission. I have a strange issue when coming to a stop when in Drive. As I'm nearly stopped the whole car jerks as the trans shifts into first from second. Hardly noticeable in sport mode as it makes the shift down to first sooner. Worse when hot. Also all around the trans doesn't feel the smoothest, sometimes lag from 1st to second with high revs. Once or twice a harsh shift into 6th. I have flushed the fluid and replaced the pan/ filter with little effect. Also at times the car feels quite locked up and abrupt when accelerating entering a roundabout for example. I have ordered the bridge seal between the mechatronic (valve body) and trans plus the 4 sealing sleaves (round tube type seals slightly different heights).
Do you think these parts will solve the issues above? Has anyone had experience with this sort of problem? Also, what is the best type of fluid? I am under the impression that it is equivalent to dex 6.
Any help appreciated! Cheers