Evening, in the video below you'll notice during takeoff there is a brief master warning once takeoff thrust is selected. 

 

 

In the comments section someone asks about this, and the uploader responds in German that it is a warning for the wheels not being straight. Is this simulated?

If it is I have not seen it and I quite often do a rolling spool up while turning on the centre line.

There is a difference between the nose gear steering and the main landing gear (rear 12 wheels) steering system.

 

Also a difference between the -200 length aircraft and -300's and -300ER's in this respect too.