A sensor in the exhaust has gone twice. I don't know what its function is but apparently it was due to the cold weather last winter. it was covered under warranty. Parts appear expensive but I don't have a lot of money so it's all relative.
2010-reg Petrol, Owner for 1 to 3 years
2011-reg Diesel, Owner for less than a year
Over 12000 miles in five months and all I have had to do is put 1/2 litre of oil in the engine. nothing else has been needed
2009-reg Diesel, Owner for 1 to 3 years
Used as a learner car and at 40,000 + miles still happy. Previously had a focus which was ok but kia better.