C43 seat parts
http://www.mbpartsworld.com/productSearch.aspx
https://www.mercedespartscenter.com/...?siteid=215720
Here are the part numbers if it helps:
Side (L) 202 910 09 75
Side (R) 202 910 10 75
Staples (8 required - 4 each side) 210 914 02 53
I can't find a part number for a whole seat so I am going to speculate that your dealer is full of it. And not selling parts violates their franchise contract with M-B. Have you tried calling other dealers in Australia?
staples are they needed to attach air bladders?
One caution. I have found that a split knee bladder can cause the pump to cycle often. I believe this occurs because the control valves leak a small amount thus bleeding down the system slowly. I assumed that shutting off the control valve would isolate the bladder, but in my experience this has not been the case with the knee bladders. It doesn't seem to occur if the other bladders leak. I can't explain why.
From my previous career as an electrician i have loads of tools and still had some stuff laying around, 50mm underground conduit is what i used:

Cut it all to fit:


Screwed in place with some big hex head metal teks:

Unscrewed it and gave it a nice soft coat:

Installed them back in the seat:

The finished product, nice and snug:
Last edited by W202AMG; Feb 23, 2017 at 04:23 AM. Reason: Added descriptions to pics
The Best of Mercedes & AMG
Fitting them back in was a fair task, but if you get the angle right they go in ok without too much effort.
My back now fits nicely against the lumbar, and the bolsters stop basically all lateral movement.




