Today the 11 September 2017 my 2011 Jetta 1.6 TDI had engine light on and another spring like image flashing. When I read the manual the message "faulty catalyst Convertor ". I need to know what could be the cause? The mileage is on 117522 and and was last serviced January 2017. The nearest VW approved service is Aliwal North which is about +/- 100km away from Sterkspruit. How long can I drive this car before it can cause more damage?