Transmission issues, Please help
I have a question about my 2003 BMW 745LI, with 90k miles on it. I recently got the mechatronics sleeve replaced along with the pan, bottom gasket and filter. I bought three quarts of tranny oil from BMW my self and brought it to the mechanic. I got a transmission fail safe mode error and noticed there was a leak this is what triggered the transmission service. The car had the transmission fail safe error however was shifting fine before the service.
I want to emphasize that before the car went into the shop it would shift a little hard into first every once and a while. All other gears shifted smooth and perfectly. I picked the car up yesterday from the transmission service and I noticed a distinct difference immediately. The car is shifting hard into every gear, as if it was a manual transmission. I have noticed that the RPM are also fluttering when coasting. It shift really hard coming to a stop from 4th to 3rd and 3rd to second. If stopping abruptly it slams into first gear from 3rd, it feels like as if I was getting rear ended. Right before I got home coming out of a complete stop it reved up and then slammed into first gear. I don't understand how the car drove for the most part perfectly before the service and now so terrible after the service. Please help