Mercedes Benz repair: 2001 e320 Mercedes power window problem, e320 mercedes, number search results

Question
My power windows work when I hold the buttons down, but dont work when I push the buttons to go up or down automatically. Is there anything I can check or repair?

thanks

Answer
2001 which one do you have?
E 320 Sedan
E 320 Wagon
E 320 Wagon 4-Matic
E 320 Sedan 4-Matic

Possible bad center console window master switch unit.

PART NUMBER SEARCH RESULTS WITH PRICES
Vehicle 2001 Mercedes Benz E 320 Sedan
Part: Window Switch
 Note:  Front : left & right
Rear : left & right
console mounted
Contains switches for all four windows, mirror adjustment and remote trunk release.     

O3060-112597 Window Switch IN STOCK $356.72