My car has a code of p0736 which is a transmission code but the transmission works fine but when i put it in to drive the car drops down on the rear drivers side

What is your question?

The car ran and drove fine yesterday, when I tried to drive it today it gave me a transmission code of p0736 but the transmission works fine but when I put into drive and give it gas, the left drivers side sinks down.

What makes this problem better or worse?

As soon as I give it gas

How long has your 2002 BMW 745Li had this problem?

Just happened when I tried to leave out yesterday. It worked fine when I parked it last night