If you don’t want to go with expensive Mercedes oem, Bosch has you covered with their A893S set.
not available yet in US but hopefully soon

http://www.winparts.eu/windscreens-a...HQEVWoXNWh1Rc#

 

Is OEM the only option to replace in the US? or where can I find aftermarket ones.

 

As far as I know OEM is the only option here in US.
I was in Europe last week but I didn't find a pair at auto store/ gas stations. I should have ordered via amazon but I was there just for few days.

 

Looking into the Bosch website and searching through car make and model, I found this pair of wipers that apparently fit the W206

https://www.boschautoparts.com/p/oe-...in-3397009843-

the model has a different code from those sold in Europe - A843S instead of A893S but the length of the blades is the same.

you can find them on Amazon
https://a.co/d/dlfj7fd

I haven’t tried them so take this information with a grain of salt.

 

Yeah, I've seen this one. Maybe the mounting type is different from W206? seems like it is for w205

 

W206 Wiper Blades.
I got this set on eBay for only $20.99. They're a perfect fit and seem to be good quality.
I usually buy Mercedes OEM but, these are a third of the price so I'm giving them a try.

The Bosch blades listed above fit the W205; not the W206.