Most parking must be paid for in Luxembourg city, this can be pay at car or using parking meters. You may also come across ‘blue’ parking zones in the major cities, to be able to park in one of these you need to show a parking vignette and this should be displayed on your dash board. Other parking zones are defined by colour with the colours representing how long you may park. For example: White zone equals half and hour, Orange a maximum of two hours and so on. Be sure to read the signs carefully before leaving your car parked anywhere.
It is worth noting that there is a free park and ride car park, around 2 miles outside of Luxembourg.