I have a '98 210 with MB Tex Interior. I reviewed several links regarding what to use on the dash, as well as the seats. I decided to use the MB Interior Care product for the dash. However, at least in Central TX, the dealers pulled the product about a month ago and the replacement product has yet to arrive. I then went to my local Target and got Meguiars Gold Class Vinyl/Rubber Protectant. I haven't used it yet and may return the product in favor of 303 (that is available at an RV dealer nearby). My questions: Can the 303 be used on both the dash and the seats? What results can I expect from the 303 on the seats regarding cleaning, increased suppleness (is this a word?), etc? Also, the door panels appear to be leather, can the 303 be used on that? Thank you in advance for your input.