need help please on 2004 BMW 545i

i have a 545I 2004 hardly driving it..always serviced when needed..about 100k miles...today recd msg saying transmission fault..reduced power...i did not drive any further..any idea what the problem is?

Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
0 answers