Rear suspension tierods/thrust arm ???
 

I have the ever present and annoying click, click click coming from my left rear wheel bearing (190e 2.3-16) I am going to change the entire hub assembly out. I was wondering if there is any adjustments I need to make when I re-install a new hub/bearing. Can I just swap a new rear knee assembly (hubs/tierod/thrust arms) out with out having to adjust anything? Also, is there any aftermarket or OE bushings I can use to upgrade the stock units.??????????

Before you do that, if you just want to check for the clicking...Check the emergency brake assembly. A friend of mine had this problem once and one of the springs in the emergency brake assembly had broken. He replaced it and all was good again.

Is it loud
 

The wheel bearings are quite strong and don't normally give out unless submerged in water etc. Think you may have a bad CV joint in your axle which while not under load is very hard to detect. Have you checked for a broken boot which may have let the grease escape? If you think a joint is dry, try cutting the band on the shaft side (small) and slide a spray can extension of some white lube under the bellows and shoot some white grease in. Then seal the bellows with a tierap. If the noise goes away you have found the culprit joint. The outers are not rebuildable but the inners are. If you try a used axle, cut both joint collars off and slide the boot down to make sure there is a proper amount of grease in it, then reband it and install.

Good luck,
Tobias MB
4 MBs

PS As always, please tell the forum what you find to resolve your problem. Thanks