w204 pulls right. Loose control arm?

[Exp21]

Hi everyone. My w204 facelift with 135k km has started pulling to the right. I checked the front wheels for play and I found a clunking noise grabbing the wheel at 12 and 6 o' clock. Tie rods seems fine, so for exclusion I looked at the control arms. If I grab them and try to rotate them by hand I can hear clearly a light metallic clunk and I feel a light play. See the video. I went to a MOT mechanic who tested under load the suspension and told me the front silent block is loose. These silent blocks were replaced at 110k km in 2018 at MB dealer, I don't understand how they could fail so rapidly! I also suspect that the wheel bearing needs adjustment. I don't really know what to do since every mechanic tells a different thing and I don't like leaving my car in not capable hands. Do you think this clunk is normal? Should I replace all 4 control arms anyway? Thank you for help

Video: https://www.asuswebstorage.com/navigate/s/643CEE5A06CB47AD9AC3BFC097D2354C4

 

[Exp21]

I just read on other forums that it's a known fault of the w204. The alignment going bad it's probably due to the front control arm hydraulic bushing. The same fault that affected the w203 model, bushing failure every 20-30k miles with oil leak and cracks. Shame on you Mercedes, another big issue of this model

 

[Uncle Benz]

You must tighten the bolt with the car on its wheels and suspension settled. If you don’t the hydrobush will be under torsion all the time and will fail prematurely

 

[Exp21]

Hi, I know this thing very well but the job was done at MB dealer. So I suppose it was done correctly. Putting apart the play of the bushing under extreme load, i don't understand if the clunk I hear rotating it by hand is normal