if the window on your e90 bmw 325,328,330,335 is not working properly then you probably have a problem with your window regulator. if you can hear the motor trying to work and there is crunching noise or the window just isnt rolling up or rolling down properly then you need a new window regulator. the window regulator motor can be used on the new regulator and the fix on it is super easy. i show you the replacement process so you can DIY fix your windows and save 100s of dollars on the repair. i got the window regulators from amazon.
