benjy.b.91 Posted April 11, 2019 Report Share Posted April 11, 2019 (edited) Hi , so i recently purchased myself a 2004 318 CI ES beautiful condition with low mileage the only problem i could see with the car was the check engine light. I didn't have chance to check codes before i purchased but the car was a bargain so i took a gamble that it wasn't too serious as it drove great. I'm not new to DIY car repair i've always diagnosed and repaired my own cars where possible but when i have tried to research these codes i have struggled to find any potential causes so i thought id see if anyone here can shed any light. The codes stored are U0030 - vehicle area network VAN data bus A open circuit U1050 - SCP invalid or missing data for brakes U0139 - Lost Communication with Suspension Control Module B# U1040 - Data Bus: body control module 8CM- no communication U101B - Lost Communication With GSM – Multiple Bus so all these codes sound to me like they are down to some sort of faulty control module or maybe wiring? i initially cleared the codes and they stayed clear for a couple of days but then all codes came back at once so i have left them be since. I really dont know where to start with this and would appreciate any input from you kind folk . Thanks Ben EDIT: Scanned car with inpa codes are s follows 2A61 - DME: valvetronic, adaptation 1 2A67 - DME valvtronic Internal fault 2C9C - DME: oxygen sensor heator before cat.1 2D0F - DME: Hot fim air mass-sensor signal 2C6D - DME: oxygen sesnor behind cat.1 aging 2C71 - DME: oxygen sesnor behind cat. 1 Right so it looks like i need myself a new valvetronic motor , replaceement rocker cover gasket to fix that slight leak and also a new O2 sesnor. anyine got any advise on how difficult it is to replace that motor for the average DIY mechanic? 2A61 DME: Valvetronic, adaptation 1 Edited April 11, 2019 by benjy.b.91 updated engine codes Quote Link to comment Share on other sites More sharing options...
momo Posted April 11, 2019 Report Share Posted April 11, 2019 Were those codes read with a generic code reader? I'd get a BMW-specific one on there and get the codes read.. Usually clears it up a fair bit.. Quote Link to comment Share on other sites More sharing options...
benjy.b.91 Posted April 11, 2019 Author Report Share Posted April 11, 2019 Yeah that was a generic Bluetooth reader and the torque app on my phone. I've just been installing the bimmergeeks software on my laptop as i actually had a cable to hand. I'll try my hand with inpa and see what says , cheers Quote Link to comment Share on other sites More sharing options...
