My 04 coupe w/108k's seats are very sluggish and they kinda studder. They sound and feel like they're on their last leg. Is there anything other than replacing the motors to make them run better? Maybe cleaning them like i've done with the window motors? thanks'

I'll be pulling out the seats this weekend and cleaning up the rails. Any recommendations on what else should be done?

i have the same problem, id like to hear what can be done as well

push the button harder

I Think you have this problem. There's a known issue with these seats eventually "rocking" because of either the seat motor or gear wearing out.

TSB-ITB02-080d

REVISED-
2003-2006 INFINITI G35 SEDAN AND 2003 - 2007 G35 COUPE; DRIVER’S SEAT NOISE AND/OR ROCKS BACK AND FORTH
The driver’s seat cushion feels loose;
• “Rocks” back and forth and/or makes a “pop”, “click”, “creak” or “clunk” noise.
• If it occurs, it usually happens when the vehicle accelerates from a stop or when making a turn.