98 E320 210 Power Seats
For starters, test power at the fuses with a test light first.
What are the chances of BOTH modules dying on you, at the same time? Your indie $ee$ opportunity.
Also check the seat controls (in the doors) to see if you have power there too.
Read here for more info.
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I start with powers, grounds and check bidirectional control if this module is accessible. Not familiar if it’s a module like W212 or basic switch group like W124 era.


