ssamalin
Veteran Member
The mod to the seat works with lumbar adjustment of the seat back. So, no slouching. I make sure my lower back is snugged against the lumbar inflator I adjusted with the rocker switch on the left seat side. So my rear is pushing back the bead fold against the seat back. It does take basic posture, I'm sitting actively engaging my core muscles. The downside is my head rest just barely makes it to my skull. Also, the the mod fills in the seat between the bolsters so I'm losing the benefit of bolsters, I don't get hip support for turning motion. Too bad we don't have the adjustable seat bolsters like in the S class. Nonetheless, the mod fixes it. I've been in rental cars with better seats. Also I have the sports package which has sports seats, maybe with bigger, sharper bolsters. Maybe I could switch to the luxury seat. I wouldn't spend much to do it because I don't have to. My seat isn't good enough to slouch in. I'll bet that forcing me to sit with correct posture makes it usable for road trips.
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