Knocking / clicking from fromt end E350

[Wenglish]

Hey everyone I’m hoping someone can help me with a rather annoying issue with my s212 e350 estate. I’ve had a few bits done to the car over the last month like a gearbox service and replacement rear air suspension bags etc. I don’t believe they are in anyway connected to my issue.

Unfortunately I now have a really annoying from what I can describe as a knock / click noise from around the front end of the car and this issue only happens when for instance I drive forward and touch the brakes it will make the noise if I then reverse the car for a little and touch the brakes it dose it again but absolutely fine when driving. Seems to be at low speeds coming to junctions etc

I would imagine it’s something to do with the brakes but what’s concerning me is why wouldn’t it make this noise all the time when braking ? It’s only when pulling off and reversing etc

Has anyone else had this kind of issue before ? My recently purchased tyres look to have been churned up and very rough around the edges I had the 4 wheel tracking done a few months ago.

I’ve taken off all the wheels and had a good check around and can’t find any issues anywhere so any help would be extremely grateful thanks

 

[Martygt550]

Could the spring on the brake pad be lose and the noise you're hearing is the pad moving?
I'd be thinking more of worn lower arm bushes/drop links ect!

 

[91dm]

Could be many things that cause a knock as the weigh shifts under braking/accelerating. Could be a balljoint, drop link, mounts, so hard to say without seeing it. Have you a local garage who could investigate on a ramp?