Actually you don't understand my prior post, it specifically states that there are two lower arms. " . . . . It does have this odd double lower arm system with 2 ball joints. "

Further, your original quote was " I'll spare the story but they insist that W203s ____only have lower control arms!____"

That's vastly different then your current quote.

Also, define whom you spoke to at the dealer, if it is the service writer, they are not going to know every minute detail of the car. Few cars in the wild have this odd double lower arm system ( I think Honda was one that used it as well. )