BMW 3 Series Siemens MSD81 original ECU files

BMW 3 Series Siemens MSD81 engines

158 files across 11 engine variants and 7 engine codes. Listed most: 325i 218hp, 32 files.

How to identify your BMW 3 Series Siemens MSD81 file

How the numbers on this model with this ECU type start:

• HW 65774… 26 of the 52 files with a HW number, 50%
• HW 5WK93… 17 of the 52 files with a HW number, 33%
• SW 0761… 20 of the 36 files with a SW number, 56%
• SW 76124… 5 of the 36 files with a SW number, 14%

A HW number alone does not pick the file: 6577475204 carries 2 SW versions here. Compare both numbers with your read.

Where do I find these numbers?

All BMW 3 Series Siemens MSD81 HW and SW numbers

14 HW numbers and 8 SW numbers, by engine. Beside each HW, how many SW versions it carries. A number opens a file that shows it.