If you want you can buy all the parts necessary to rebuild your seat correctly from MB. Then all you need is someone decent to fit them and make sure they don't use their "own" parts.
Above is a picture of the seat and the parts you can order. Have a surf around the site to make sure you got the right part numbers.
MB used to sell foam blocks to put under the springs in the seat base which is cheaper than buying a new spring box and having it fitted.
Regards to all,
I do not think that the foam is handed. I find that part 14 is something added, only on some seats and fabric.
Is the free height at the front edge the same on both seats.
Can you raise the seats and have someone sit in them and feel underneath for a sagging spring structure, by comparing both sides
It is only the rear part of the seat that is a problem. I was thinking of buying some MB foam blocks (124 910 16 75) which my dealer reckons are available in Germany (£5.30 + VAT) has anyone tried these ?
Any idea how much the breakers charge for a spring frame ?