Hi I am New but looking for some help/advice/comfort. Our2008 A3 has done just on 33,000KLms. Yesterday the coolant light came on, the temp did not move off 90degress. Drove on for 5 mins, arrived home. Ground was covered in coolant and the reservoir was completely drained, could not see any hose damage, and certainly no chance of a stone or something puncturing radiator. Rang Audi assist (we are in Australia), they came said cant see anything to cause this, we better tow it to the dealership. There does not seem to be a head failure as there is only a small amount of oil around the head normal. Car starts and sounds fine ( turned it back on for a few seconds). My issue is that I am outside of warranty (12 months) but car has done no Klms. What could my problem be? Thanks in advance.