Today I met the sales manager and showed him pictures that I took. He said that first, mechanics will try to get rid of the stains by using a liquid cleaner, and if it does not work, a RNS unit will be replaced to new one by the warranty. My 2008 RS4 is brand new. I have owned it only two day. After solving the problem with any method, will my car's condition be the same as new one? I worry that any mess-up will happen around the RNS unit area, such as any dirt, scratch, gap, and etc. while the problem is being repaired.