Sure, most manufacturers suggest an alignment at least once a year. It's definitely a good idea to check the suspension when you get new tires and do an alignment.
On your car the Steering Angle has to be reset with an OE diagnostic tool.
On a BMW 535, in a word, yes. You have one of the best handling machines in the world of automobiles, but to keep it that way and for the new tires to wear properly, I would do 4-wheel thrust angel alignment every 12,000 miles.