So - for us wagon owners, we know the rear shocks are expensive (left / drivers side) or impossible to find AND expensive (passenger / right side). I have a leak on the drivers side and luckily that is the part that is avail, 2183202130. For ~$750...
Now - normally I do believe in swapping both side shocks at same mileage just to keep the suspension equal in wear and tear. For $750 each I'm a sliver more hesitant. If I was able to source the right side (2183202230), at all. Latest update (Oct 2025) seems to be it may be possible? OldManAndHisCar update

If you search eBay you find these: Chinese knockoff (for wagon and the CLS - which is the 218 partnumber anyhow)
As previously discussed here at MBWorld, seems like the difference is more in the physical layout (the little side cylinder) than the actual shock itself. Seems like this vendors realized that and make one set (for $450 - both sides!) with the wagon looking setup (likely this fits just fine on the sedan as well?)

This is not meant to be a "buy OEM or you are too cheap to own this car" kind of discussion, but a realistic thought that esp. if your right side is blown, this is unlikely to be a worse alternative than buying a used one from a dismantler (which is also hard to find)? At least until the right rear shows up again as avail?

They are available from MB. You just have to find a parts Guy that will keep resubmitting the order. I just did all 4 corners a few months ago and the improvement in ride quality was dramatic. I got the available ones from FCP Euro. Syracuse MB ordered the others. Rear shock took 8 weeks.

OK - good to hear. Seems like they are slowly getting back in stock then. How many miesl when you replaced them and any signs (leakage etc)?
Price is nuts, $1,200 for RR, $750 for LR. Fronts are $1,300 FR and $1k FL. Have to also admit the $3-600 price difference right and left makes no sense to me?

70k miles for Me. Left rear was totally shot. Right front leaking.