I know this is an old thread but for anyone seeking a fix for this, an alternative is getting the seat backs from an 89-91 boneyard model. On the 126, it's a direct replacement and they have the more modern leather pocket instead of the cargo net. A five minute job, too.

__________________
_______________________________________
1988 MB 560 SEL 138k - Desert Taupe w/ Cream Beige Interior.

Mods:
Euro Headlights w/Smoked Corners
New seats from a `91
ASA 15-Hole Replicas
Sony HU, JL Audio 400/4 Amp, JL Audio 2-way Components on rear deck, JL Audio 3-way Components in door & dash.


2000 BMW Z3 2.3 Roadster 33k
2002 Toyota Rav4L 50k