Scirocco Central

So, I had my cam belt and water pump changed a few days ago, picked the car up and drove home 12 miles with no issues.
Saturday I went for a drive and the engine warning light came on, no other lights, just the engine light. I pulled over and plugged in my Carista which told me I had a DPF pressure Sensor failure, I checked under the bonnet to find this
Has anyone had this happen to them before?
Does anyone know what might cause this?

I have taken it back to the place that did the cam belt etc and they are taking a look at for me, im just a little concerned that it might escalate into something expensive rather than £40 for a replacement sensor.

Interestingly theres a whole thread about this happening just after a timing belt change on Briskoda.

From what i've read no one has got to the bottom of it, but it seems a fairly common occurrence.
Fortunately most just seem to fit a new sensor and all is well.

Did you ever get to bottom for sensor melting... mine has done the very same as your...