2015 Portfolio 2.2 Diesel. Intermittent Park Aid Unavailable contact dealer fault started approx 6 weeks ago. Fault occirs when driving and occasionally after hitting bump - but seems to reset after car is parked for a while. Looking at the usual faults a new Boot loom is fitted but no change. Fault increases over the next weeks to the point where the car has the system only for a few seconds before failure and the car sent to dealer for repair. Dealer replaces Park Aid module and the first run lasts 10 minutes before failure - second 20 and the third 25 minutes before Park Aid Unavailable alarm, so the problem has reduced but not been eliminated - any ideas????
Simple Sailor.

 

I would say it is some kind of connect problem, possibly heat issue. Does it stop working when the car is warmed up?