Software J421231220012 Siemens/Continental MSS52/3
5 master projects carry this software number, 3 with a modified version. Upload your read to have the tune transferred into your own file, or buy the file exactly as we hold it by software number. Modified files from $275, original (stock) files from $75 AUD. Trade accounts see their own pricing after log in.
Fitted to
BMW M3 E46 M3 ×2
BMW 3er M3
BMW M3 3.2
BMW E46 M3 3.2i
ECU
Siemens/Continental / Siemens
MSS52/3 / Undefined / MSS52
Siemens
Hardware / part numbers
7837941
Undefined
Read with
any full read from your flashing tool
Modifications available
- Stage 1 ×2
- Lambda / O2 / cat off ×1
Have the read? Upload it.
Upload your read →
Your own file comes back with the modification built in, checked for a 100% match before it's offered.
Can't read the ECU? Buy by software number.
See files & prices →
The stock or modified file exactly as we hold it, to write with your tool. Make sure your ECU carries
J421231220012 and the same hardware number.Vehicle pages: BMW 3er · BMW E46 M3 · BMW M3
Files are supplied for off-road / motorsport use; checksums are corrected by your flashing tool on write. Last project update 2024-03-05.