99 E320 127k... problem started with the drivers side window not working occasionally. I figured it would either be the switch or the motor but I didn't get a chance to check either and the next day it worked fine.

It probably happened 3 or 4 more times, and just the last time I took notice that when the windowdidn't work, neither did the drivers side mirror, any of the seat and steering wheel controls including the illuminated buttons, or the puddle light in the door. Figured it could be a harness issue... but the power door lock still worked. Think its still wiring related or possibly a bad harness plug? how hard is the interior door panel to take off?

thanks!

 

Now the pass door doesn't have power. I don't know if it may be a fuse issue now or if may be a contol module issue..... Any ideas???

 

i have 1998 e class w210 has problem with both isde front window andside mirrorthey stop working some time two hoursor some time two days or some time two weeks when is goes off.itake any of thethe battery terminal for second and it start working back to normal until it goes off can some boby there to assist me with this problem

 

Pop the rear pass seat and examine the battery box for water intrusion.The pse that controls all those functions is by the battery and a common problem is moisture corroding the contacts.Inspect the whole area.http://w210.pietrzyk.net/disassembly_doors.htm
incase you feel the need to remove the door panels,although i think it is the pse with all those issues.
ohlord