You know what? you're right but it wasn't a fuse. So I started taking apart the steering wheel and I couldn't get the giant hex key bolt out and I tried everything and after a while I stopped before a tool slips and I do some damage. As I was sitting all depressed and staring at the steering wheel I started fiddling with the switch and I noticed that it pops out without having to remove anything. So I popped it out and it turns out the contacts inside the switch were oxidized as a result of sparking when in use. I cleaned up the contacts carefully without grinding too much off and It's fixed now.
I love mercedes, almost everything can be refurbished in this car. Now if it was an american car or and audi or VW the dealer would charge me 200 bucks for a stupid switch after replacing my whole steering column for $1200 plus labor
This was a constant problem with the seat switches in my 190E to the point where I would almost do it as regular maintenance.

Thanks for all your help.