2003 E500 PASSENGER SEAT CONTROLS DON'T WORK - HELP!!!!
So I did some research and purchased a genuine OE replacement module from German Auto Supply in North Carolina. I took out the old module, gave them the part number, and they sold me the newer part with the newer part number. I gave it to my mechanic here in Nashville (a very good mechanic) and he replaced the module, but the seat still will not adjust or move in any direction.
Any thoughts on what to do from here? He's already checked all the switches, etc. Wondering if the module has to be programmed before installation? I was told by Mercedes in Atlanta that the module should be simply "plug in and go."
Is this correct? What are we doing wrong? What are we missing here?

Any information at this point would be extremely helpful. And thanks in advance for your time.


