I used AIO on my MB when it was three weeks old last week. Aio left it slick as glass, but after I applied some SG man did it shine even on my white car, I didnt believe you could get much shine on white, was I wrong. Yes Aio contains some solvents to clean but I would not worry you have about 40 pounds of paunt on your car, just use AIO about twice per year. Did you get your Klasse at your MB dealership?