If your main concern is wondering which relay operates what equipment i can't help maybe somebody else can. However if you want to know if the hot/ warm relay is operating normally which relay is it? A picture or description of the location will help, I have a '91 350SDL, and have access to a '91 560SEL and a '90 420 SEL , Ill let you know if that same relay also gets hot/warm. Let me know.

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jcciem
'94 SL5000 60,000
'91 350SDL 545,000
'91 350SD 197,000
'00 E55 AMG 77,000