2 weeks old 2005 superb classic 130,engine management light has come on,skoda book says,control system for exhaust gases,anyone knows please let me know.

It probably means you've lost a sensor somewhere.

You'll need to get the fault code read via someone with Vag-Com or a dealer.

Have a look at the rubber pipe that goes to the egr valve, the egr valve is the top hat looking unit under the cover next to the oil filer cap, where it can get rubbed and make a hole and send the fault light on.