I did a quick check. I took W111014 (not sure it is yours). For W111014 you have PN:
A 001 154 43 06
then
A 002 154 36 06, which is replaced by
A 002 154 74 06, with a note:
As of engine: 982 10/50,20/60 048321 982 12/52 012577 982 22/62 012871 982 10/50,20/60 011063 984 12/52,22/62 003257
The system says this one is available at the dealer within 72 hours, costs ca $450 in my geography. I think it would look similar to what wwheeler is showing (I bought a very similar looking one for 190SL).
I am afraid the system is not recognizing the PN wwheeler is providing...