The passenger's side back door window will not raise up.
Having a window that will not roll up can be a frustrating experience. There can be a few different reasons as to why your back window in your BMW will not roll up, and the most common one I have come across is that the window motor/regulator assembly has started to fail. Sometimes a faulty window switch or a blown fuse can be the culprit. To be 100% sure however on what the cause is, I recommend enlisting the assistance of a certified mechanic to stop by and go over your BMW with you. Once there, they will be able to inspect the window in person and quickly be able to identify exactly why your BMW window will not roll up. They will also be able to make any repairs necessary to make your window roll up and down every time you need it to.
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