Driving 2018 Q60 3.0t Luxe Coupe with Proassist Package in *very* heavy rain yesterday when the front sonar failed. Not happy about that. First thought it might be just rain itself but problem persisted for about 20 minutes after rain stopped. Then everything was back to normal. Now I'm wondering if water might have gotten into a connector or the sensor. Has anyone else had a similar experience. I'll check with the dealer service department on Monday.