The Russian EPC site "everythingbenz.com" is still up and running.

Item 5 - MB Part number: A1242700796
https://www.ilcats.ru/mercedes/?function=getParts&class=1&catalog=67X&aggtype=GA&model=722435&group=27&subgroup=180&language=en

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78 W116 300SD 'Desert Rose' new as of 01/26/2014
79 W116 300SD 'Stormcloud' RIP 04/11/2022