Thanks for posting, this is helpful. Seems to confirm my suspicion, at least I'll have a starting point for the technicians to examine the wiring.

ECM-914C, ECM-9918, ECM-950C.

Sounds like the moonroof drains to me. The same issue happened repeatedly on my 2007 S40 on both sides. I was able to fix it myself with help from this forum: https://forums.swedespeed.com/showthread.php?127007-Sunroof-drain-clog&highlight=Leak . The drain tubing is located along the driver and ...

First time posting here but long time follower, reading other people’s issues has helped me immensely. Hoping the group can provide some insight on my own set of bizarre issues this time. Here’s the full rundown: 2007 Volvo S40 2.4i automatic with 103,000 miles. Haven’t had any major issues aside fr...