Hoping this might help track down fabric #
http://www.amcon-luxled.com/mbcar/polster5.html . Also, I made a "rubbing" of my engine compartment build plate and keep it with my parts and repair log so I can pull it out for ordering. Dealer parts dept. should be able to decipher codes. Most complete code list I've found is on the site I referenced.
http://www.amcon-luxled.com/mbcar/index.html Good luck.
Bruce (I could be wrong) E.