A3car19tdi Posted September 28, 2021 Share Posted September 28, 2021 Hi all. I have this A3 2010 1.9tdi A red brake warning light has come up and the yellow traction and abs light on. My local garage plugged in and he was saying it's the abs pump/ module etc but he wasn't sure and couldn't narrow it down. Will the car give me any codes some how ,any secret menus? I had the same on my BMW once and had to replace the aluminium part on the abs pump which looks similar. I have a couple of OBD2 dongles but they are a bit unclear with what they show. Anyone point me in the right direction? Quote Link to comment Share on other sites More sharing options...
cliffcoggin Posted September 28, 2021 Share Posted September 28, 2021 As far as I recall those can also be the symptoms of an instrument cluster fault or an ECU fault. I don't know how you would pin down the actual problem except by replacement, which of course is a hugely expensive solution that could easily exceed the value of the car. Quote Link to comment Share on other sites More sharing options...
A3car19tdi Posted September 29, 2021 Author Share Posted September 29, 2021 Does anyone know if I need to program a second hand abs pump and control module if I swapped one in ? Quote Link to comment Share on other sites More sharing options...
Steve Q Posted October 4, 2021 Share Posted October 4, 2021 Yes I believe you do. Quote Link to comment Share on other sites More sharing options...
A3car19tdi Posted October 4, 2021 Author Share Posted October 4, 2021 1 hour ago, Steve Q said: Yes I believe you do. Is there a particular part likely to be the cause?? The pump, the aluminium bit the plug in module? Quote Link to comment Share on other sites More sharing options...
Steve Q Posted October 5, 2021 Share Posted October 5, 2021 More likely the pump. But don't rule out the other problems as it could be instrument cluster or ECU etc. Quote Link to comment Share on other sites More sharing options...
A3car19tdi Posted October 5, 2021 Author Share Posted October 5, 2021 Anyone in Bristol got vcds or vag scanners to help me diagnose in Bristol for some beers ? Quote Link to comment Share on other sites More sharing options...
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