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Good to knowAbout SIMOS2.1 files
SIMOS2.1 is a Continental/Siemens petrol engine control unit used by the VAG group. We currently have 8 SIMOS2.1 files in stock and 5 hardware numbers. Each one is an original read from a working unit.Vehicles that use this unit here include Skoda, SEAT, Volkswagen, Audi and VAG. Frequent models: LEON, OCTAVIA, GOLF and A4. Available as Immo Off and Original File files.Always compare the software number on your label with the number in the file title: two units with the same ECU type can still need different software. Missing your version? Request the file with the label numbers and we will source it.
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Frequently asked questions
How do I find the right SIMOS2.1 ECU file?
Read the hardware and software number from the label on your SIMOS2.1 unit and type it into the search box, or filter by model and ECU type. Every file is listed by those exact numbers, so you can match your module before you buy.
Are these original SIMOS2.1 files?
Yes. Every file is read from a real unit; original dumps, immo off, virgin and tuning versions are available where applicable.
Which tools do I need to write these files?
The files are supplied exactly as read and work with common tools such as FLEX, NEW TRASDATA and VVDI PROG, depending on the ECU.
What if my SIMOS2.1 file is not listed?
Send us the hardware and software number from the label. Most requests are sourced the same working day.
How do I get the file after payment?
Downloads unlock the moment your payment clears — straight from your account, no waiting.
