This the second time I have taken the car to Schaeffer automotive, and again absolutely impressive all across the board, (a tranny flush and filter in my 323i beams ), and even though I had failed to mention possibly checking the differential bell housing fluid, they had already done that and topped it off with fluid, and for the first time in decades of cross country driving, they were below the estimate, my car and myself thank the entire crew! Well done Mr Schaeffer, well done. Bryn