Electrical problem
2003 Audi A4 4 cyl Front Wheel Drive Automatic 65000 miles
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rear d side powere window slides down if i hit a bump. it will go down if i use the down switch. will not go up if i push up on power switch. is motor bad/ window off track? could i attempt to fix?

An attempt is possible if you have the tools and parts required and the skill to attempt the repair. If you try you can do it. I recommend getting the correct repair manual as well, good luck and let us know the results

you probably have a bad window regulator you could replace it yourself but you have to disassemble the door ,better left to a pro