Hello, I am an owner of an audi a3 1.6 2007 for 5 years now and I have been very happy about how reliable and durable this car is. Right now I am thinking to make an upgrade to an audi a3 again with the 1.8 or 2.0 tfsi engine from 2009-2011. Are these engine reliable and durable enough? will I have any major problems with them?