windows not open

i have taken my battery off not sure if it has any bearing, when i went yto open the windows they would not work when i open the car door they work fine. anyone come accross that before?. thanks paul

Hi there, i have the ecu off my mercedes V6 E320 1997 changed i bought a completed kit but now the rear windows do not work. so i take back to the mechanic and they swoop to the old kit and windows work fine. the Ecu Part Number it is A0265459632 Someone told me this kit was fitted on...