Siemens MSD81 original ECU files

Vehicles with a Siemens MSD81

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

How to identify your Siemens MSD81 file

How the numbers on this ECU type start:

• HW 65774… 64 of the 114 files with a HW number, 56%
• HW 08672… 18 of the 114 files with a HW number, 16%
• HW 5WK93… 17 of the 114 files with a HW number, 15%
• SW 65774… 40 of the 97 files with a SW number, 41%
• SW 0761… 20 of the 97 files with a SW number, 21%
• SW 08676… 17 of the 97 files with a SW number, 18%

A HW number alone does not pick the file: 6577475205 carries 4 SW versions here. Compare both numbers with your read.

Where do I find these numbers?

Siemens MSD81 map packs in figures

22 packs, 49 to 110 maps each, median 90.

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

All Siemens MSD81 HW and SW numbers

27 HW numbers and 32 SW numbers, by make. Beside each HW, how many SW versions it carries. A number opens a file that shows it.