For a code list have a look at post 2

http://www.peachparts.com/shopforum/diesel-discussion/318879-whats-my-bumper-trim-color-code.html

From the tag in the 2nd post in this thread.

473 ( H ) is champagne (champagnermetallic)*

That is probably similar to 702 smoke silver (rauchsilber)* ( My 97 SL320 )

(* = metallic)