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Discussion Starter · #1 ·
Hey everyone,
Having some trouble with my front windows (05 M3 vert)
Both of them work with the individual window switches, but the master window switch is only able to bring the front windows down, not up. At first it was just the left front window that was having this issue, but the right just began to experience the same thing as well. Could be because I just had alternator replaced...

Would appreciate any help. I've heard this can be fixed pretty easily with some sort of reset, but I'm not sure how.

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