Have a 540i E39 V8. Transmission is lazy between 1st and 2nd gear. Transmission people tell me to have a service and that it is probably a pressure problem. Cold also be a solenoid or bad electrical connection to the solenoid. BMW say that they do not need a service for life. Do I service or not? If not what do I do about the lazy change. Otherwise car is fabulous. has 180,000ks. In great condition.