Variant 1
ECU- Catalog engine
- 1200 105HP
- Controller brand
- SIEMENS
- ECU
- SIMOS10.23
- Stock power
- 105 HP
- ECU SW
- 9872
- ECU HW
- 03F907309AF
- SW upgrade
- 03F906070BL_9872
- Calibration
- 03F906070BL_9872
SEAT · SIMOS10.23 ECU · petrol
SEAT LEON SIMOS10.23 tuning files
The SEAT LEON on the SIMOS10.23, mapped from stock file to finished result. Stock output across the matched variants spans 105–105 HP. It is a petrol platform, tuned for response and clean power delivery. Each file is tied to the precise software on your car and checked before it goes out.
Available solutions
Applicable work for the SIMOS10.23 on this petrol. The available set firms up once the exact engine and software are known.
Engine variants & ECU software
1 distinct variant for the SEAT LEON on the SIMOS10.23 ECU. Reference the engine and controller software when you upload.
Related vehicles
Other vehicles built on the SIMOS10.23 controller or the same engine — handy when a platform spans several models and makes.
Questions, answered.
Which tuning solutions are available for the SEAT LEON on the SIMOS10.23?
Stage 1, Stage 2, Swirl Flaps Off, Lambda / O2, OPF/GPF Off. The exact set depends on the specific engine and software version.
Do you cover the SIMOS10.23 ECU software on this model?
Yes — the SEAT LEON on the SIMOS10.23 ECU is part of the catalog. Upload your original file and it is matched to the right calibration before any work is done.
How is the file delivered?
Through the TuningBay workflow with operator validation and one safe, sensible result per job. Files we deliver, we stand behind.