My daughter has a 2006 307 hatch with 1.6 petrol engine. The auto trans has started playing up. It goes into limp mode and is very clunky on gear changes. From what I have found out the 2 pressure solenoids are probably shot. I’ve have ordered 2 new solenoids. I also need to source the 2 x o-rings (p/n 221916) that go behind the valve body. Can anyone recommend a good parts supplier in Sydney or alternatively a repairer who will do the work without me needing to sell a kidney? Also how do I go about ditching the heat exchanger and just running an air to air cooler?