Parking Aid Control Module Octavia Mk3

Hi all, 

Can anyone help me locate the parking aid control module on an Octavia Mk3 VRS TDi? Part num 5QA919283A

I have been having problems with parking sensors for a while now and a scan with carista flagged up the control module at fault. Sometimes they work perfect, sometimes not at all and sometimes they go nuts when reversing aa if somethings right behind me when its not.

I can get a 2nd hand part off internet and was going to try fit it myself if anyone knows if its an easy job or not.

Any help greatly appreciated.

Thanks