Software K421231810000 Siemens Undefined
6 master projects carry this software number, 6 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 E36 M3 ×3
BMW ×3
ECU
Siemens
Undefined / MSS52
Siemens
Hardware / part numbers
5WK9025
Siemens
Undefined
Read with
any full read from your flashing tool
Modifications available
- Stage 1 ×5
- Other modification ×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
K421231810000 and the same hardware number.Vehicle pages: BMW E36
Files are supplied for off-road / motorsport use; checksums are corrected by your flashing tool on write. Last project update 2023-12-16.