1st thing to do after you've pulled over somewhere you can stop safely is check that all the oil is still in the engine, using the dipstick.

2nd thing is to undo the connector from the oil pressure switch and see if it looks like this:

 

If you don't know where the oil pressure switch is on your engine, it's probably not a bad idea to find it, ahead of need. Typically the only sensor connection with a single wire.

 

 

There's a diaphragm within these pressure switches, which is how it converts the pressure into mechanical movement and operates the electrical switch. When the diaphragm fails, the oil leaks through into the electrical switch part and on out to the inside of the electrical connector.  I could see there was moistness where there should have been dryness before even unplugging the connector, but a steady dribble of oil after doing so.

 

So much better than any other scenario that could have been behind these warnings.

Cheap, quick fix with replacement switch. 

 

Edited 10 May, 20233 yr by Breezy_Pete

Gotta love VAG and their rubbish electrical parts