#1. A viola is a member of the string family in the orchestra 8^)). Voila is french for "there it is", as opposed to voici for "here it is".
#2. I don't own a 126 but I've worked on a few. I've also been following MB web lists for three or four years and IIRCC, most pro wrenches have chimed in that MB springs don't typically wear out. That's not to say it never happens, but it usually isn't the cause of your problems. Any pro wrenches reading this can agree or refute this if they desire, I'd like to know what they think.