Transmission control module
Posted: Wed Nov 18, 2020 8:49 am
Hey everyone. My 1.8L 406 ( petrol automatic 2003 ) has the SIEMENS S118047804 D transmission control module (AL4 gearbox). I searched the web and found modules with the same code(S118047804) but with a different letter (C/D/A), or with a different code altogether, but they are all stating to be compatible with the 406. So what is the different between them? What do the letters mean? And if I were to change it and couldn't find one with the same code, how do I know what module with which code to put in my car?