Morning all.
My 2014 E350 bluetec coupe has had a very noticeable knock from the front offside since hitting a pothole.
The car crashes over minor road bumps and it sounds horrendous.
The car has just been in for its annual service and MOT. The garage can find no problems with any of the suspension components.
Any ideas where to look?

 

bushings and mounts

 

I had the same issue. I paid a local trustworthy independent German car shop a not-small amount of money to replace those as well as the front struts.
Issue solved.

 

My E350 has same at front left side too, and some minor tyre scrubbing. I'm saying bushes.