Siemens MSD81.X original ECU files

Vehicles with a Siemens MSD81.X

Siemens MSD81.X files are listed for 1 make and 5 models, the most listed first.

How to identify your Siemens MSD81.X file

How the numbers on this ECU type start:

• HW 65774… 21 of the 23 files with a HW number, 91%
• SW 65774… 14 of the 18 files with a SW number, 78%

A HW number alone does not pick the file: 6577475255 carries 2 SW versions here. Compare both numbers with your read.

Where do I find these numbers?

Siemens MSD81.X map packs in figures

10 packs, 28 to 103 maps each, median 51.

Named by the most packs: Spark Advance at full load 100%, Injection base map 100%, Spark Advance base map 100%, Throttle valve - operating angle 90%, RPM Limiter 90%, Airflow mass through throttle valve 90%, Optimal engine torque 90%, Limiter of Maximum torque 90%.

All Siemens MSD81.X HW and SW numbers

12 HW numbers and 13 SW numbers, by make. Beside each HW, how many SW versions it carries. A number opens a file that shows it.