ReggieB Posted March 5, 2016 Share Posted March 5, 2016 Hi People, Sorry 1st post. Today I bought 2004 A3 1.6 FSI Sport but it needs an ECU. All works fine when running, but onced switched off you need to disconnect the battery, then switch key on, connect battery and then it starts and goes. Can I just buy another ECU from same year and model and its plug and play? Any ideas? Quote Link to comment Share on other sites More sharing options...
James Posted March 7, 2016 Share Posted March 7, 2016 How do you know it needs an ECU? Did you get the car at a steep discount because of this? Quote Link to comment Share on other sites More sharing options...
ReggieB Posted March 7, 2016 Author Share Posted March 7, 2016 Audi have said that it needs to be replaced and yes to 2nd part of question. Quote Link to comment Share on other sites More sharing options...
James Posted March 9, 2016 Share Posted March 9, 2016 Get the part number off yours and look for an identical one on eBay. Will likely then need an auto electrician or an Audi specialist to code it to the car for you though. Quote Link to comment Share on other sites More sharing options...
ReggieB Posted April 4, 2016 Author Share Posted April 4, 2016 On 08/03/2016 at 9:36 AM, James said: Get the part number off yours and look for an identical one on ebay. Will likely then need an auto electrician or an Audi specialist to code it to the car for you though. thank you Quote Link to comment Share on other sites More sharing options...
James Posted April 5, 2016 Share Posted April 5, 2016 Let us know how you get on Quote Link to comment Share on other sites More sharing options...
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