Auxillary pump failure

About a week ago the dreaded emissions light came up on the car (2016 VRS diesel 4x4).

My first though was it was a bit weird as I'd only just done a 250 mile round trip that weekend, but I did a forced regen anyway to no avail, the light stayed on

I then did a very short trip with the light on, when I got back to the car the light had gone off (RESULT... or so I thought)

Later that day the dashboard kept on throwing up "put the car in park and call the garage" warning, but it would go off as quickly as it came on.

It was already booked into the dealer and typically it's out of warranty just 2 months ago.

The garage diagnosed it as an auxillary pump and it's being fitted (costing me just over £400 including the diagnostics, loan cars etc...)

Has anyone else had this issue?