Suspension refresh question
This is the kit I bought in 2021 and put on my 2012 E550. Very good high quality components and like them better than the original ones. It should work on your 2010 E550, probably worth calling them to confirm.
Also turning your wheel and hearing creaking could be the control arms. The rubber on them fails after 10 years as well as due to driving habits and then you hear metal creaking.
https://www.autohausaz.com/pn/MY-223103716








