Parking Sensors on the blink?

[GlynH]

VCDS is showing my right rear sensor as open or shorted so will have to be replaced as I also have the green light flashing in the switch and both front & rear sensors do not work.

You might think that if the fault is on the rear then the front might still work but I guess the module doesn't discriminate between faults?

Does any kind soul have the part number for the genuine Audi part and can you just confirm that right rear in this instance does refer to the offside sensor?

Are they easy to remove/replace?

Thanks & kind regards,
-=Glyn=-