It might be the connection in the door. I had an issue with my passenger door when opened the glass would drop but remain dropped when door was closed. Got into the connection & sprayed with WD40. Has worked as it should do ever since. The connector unclips at the top and slides upwards to become free. I can't guarantee a fix but it worked for me. Also if you've got a small air compressor, give both sides of the connector a blast before the WD40. By connection I mean wiring harness. There is a you tube video showing getting into the harness. Search Volvo C70 Door Electrics. The video is of a C30 but looks the same as.
Last edited by FredGraham; Jun 25th, 2018 at 15:23.
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