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FELSEN ONLINE
ECU & TCU FILE SERVICE
Professional vehicle optimization, diagnostics and ECU/TCU file services for workshops and tuners, with clear workflows and direct communication.
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Your file service in three steps
Submit your file
Enter vehicle details and attach your original readout.
Track your order
View status, messages and finished files in the portal.
DIGITAL WORKFLOW
Why Felsen Motorsport?
We combine control unit technology with hands-on workshop experience. From sound diagnostics to our digital file service.
✓ Vehicle-specific solutions
✓ Online workflow
✓ Multilingual support
FELSEN MOTORSPORT
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Create a free account and explore our file service.