File Service: ECU tuning files for workshops and tuners.

Upload your file, we apply the solution and send it back ready to flash.
All done in minutes.
ECU families we work with
These are some of the ECUs and TCUs we work with. Don't see yours? Send us a custom request and we'll confirm availability before you spend any balance.
Real versatility, solutions proven in minutes
We don't work with a closed catalog. We adapt to your tool, your ECU and the way you work.
The most complete file service
Solutions in minutes for cars, vans, agricultural and industrial equipment.
100% tested solutions
Every standard solution is validated and tested before publishing. You get a proven file, not a lab experiment.
24/7 active support
Available for issues, questions and order follow-up at any time.
Custom requests
Uncommon ECU or a modification outside our catalog? Our engineering team develops it specifically for you.
DTC Verification
We identify every DTC (trouble code) in the original file, telling active ones apart from inactive ones. It doesn't use your wallet balance or require payment: use it as many times as you want, even if you don't end up requesting any modification.
Detects every DTC
Full reading of the trouble codes present in the file.
Active vs. inactive
We tell apart truly active DTCs from those that have been cleared from the map.
Unlimited and free
Not tied to any payment or to your wallet balance. Check it as many times as you need.
From your tool to a ready-to-flash file
You stay in control of the vehicle and your read/write tool. We take care of the file.
Sign up and top up your wallet
Create your account and top up any amount you like. With your first sign-up, get €5 of free balance.
Upload the original file
Read it with your usual tool (Kess3, Autotuner, KTAG, PCMflash and others) and choose your solution(s).
We verify and process it
We apply the already-validated automatic solution, or assign it to an engineer if it's a custom file.
Download and flash it
Download the modified file and write it yourself whenever you're ready.
A constantly expanding catalog
We develop new solutions every week, expanding the service's compatibility and versatility.
We work with the tools you already have
No need to switch equipment: we adapt to the file you send from your usual tool.
We're a master point for Flex (Magic Motorsport) and for Autotuner. We don't currently accept other slave tools: we need the file read with a full tool. If you're not sure which case applies to you, message us before topping up your wallet and we'll check it for you.
Upload the file: we identify the ECU for you
No cascading dropdowns, no filling in make, model and engine. The file itself already carries the information we need.
When you upload the reading, the platform analyzes the software number and the identifiers contained in the file itself and works out which ECU it is. You just tick the solutions you want and confirm. Fewer clicks, less room for error, and for the already-validated automatic solutions, the file is generated in minutes.
Just one requirement: the reading has to be good and not truncated, since the identification comes from the binary's own content. Ideally we work with original files, but we also work with files that have already been modified. Your balance is deducted when you confirm the request, not when you upload the file — and if you just want to see what's inside, DTC verification is free and doesn't use any balance.
Clear pricing, per solution
Top up your wallet and pay for each solution at its individual price — the same amount no matter the ECU, with no separate plans, so your margins stay high.
Combine solutions on the same file and come out ahead: if you select several at once, their combined cost is capped per file, so past a certain point you don't pay more for adding solutions. Immo off and automatic Stage 1 are separate services and don't count toward that cap. Exact amounts are shown in your account. Your wallet balance never expires.
Are you a workshop or tuner? Get in touch and we'll help you work out how much you could earn offering our Stage 1 files to your customers.
Who's behind File Service
File Service is operated by AFR Engine, an automotive electronics workshop in Zaragoza, Spain. We're not a mechanical repair shop: we work exclusively on electronics and engine management. The same standards we apply to the vehicles that come through our doors are the ones we apply to the files that come out of the platform.
Create your File Service account
Tell us which tool you use and what kind of files you need. When you create your account you get €5 free credit for your first request.
Create your free accountEverything people ask before getting started
No. The price is the same for workshops, tuners or private customers. Payment works through a wallet: you top up balance and each request deducts the amount of the chosen solution.
Two ways: topping up your wallet with larger amounts (the more balance you top up at once, the better the bonus) and combining several solutions in the same request.
No, it's completely free and unlimited. It doesn't use your wallet balance or require any payment.
That we don't depend on a single manufacturer, protocol or tool. We cover cars, vans, motorcycles and also agricultural or industrial machinery when the case allows it.
Automatic solutions are already-validated standard modifications: the file is generated in minutes. A custom request is reviewed and developed manually by one of our engineers.
Yes, you need an account to upload your original file and request any solution. Creating one is free and includes €5 welcome credit for your first request.
Our technical support is active 24/7 for any issues. We'll stick with you until the file works correctly.
Not at the moment. We work with files read using full tools. We're a master point for Flex (Magic Motorsport) and for Autotuner. If you're unsure about your equipment, message us before topping up your wallet.
No. The balance you top up never expires: it stays in your account until you use it.