So, I have a weird electrical problem in my V70, it will run fine when cold and will drive forever without problems, but if I shut it off and leave for 30 mins, it will idle rough, no speedometer, rev gauge or temp gauge, "brake failure" warning message, abs and tcs lights on. It will also jerk violently when driving at around 2k rpm. No loss of power, no rev limit.

Car is manual, non-turbo