Well thats pretty stupid of me isnt it! My apologies
1993 300E
Since I'm posting again thought I would ask if I do have to buy a comfort control module, I saw them used on ebay but am confused as one was priced for $49 the other $150 and both had same part number of 2028200926 There was one difference on another number on the part though which is 5072020 for the $49 and 5072021 for the $150. Dont know what this number is, but it is stamped under the part number on the part.

Thanks for replying.