Variant 1
ECU- Catalog engine
- 2000 140HP
- Engine code
- R4 2,0L EDC
- Controller brand
- BOSCH
- ECU
- EDC16U1
- Stock power
- 140 HP
- ECU SW
- 7341
- ECU HW
- 03G906016AJ
- SW upgrade
- 03G906016AJ_7341
- Calibration
- 03G906016AJ_7341
SEAT · EDC16U1 ECU · diesel
SEAT LEON EDC16U1 tuning files
SEAT LEON on the EDC16U1: matched, calibrated and delivered with care. The matched variants sit between 105 and 140 HP from the factory. 4 distinct variants are catalogued here. Diesel calibration here covers everything from a clean Stage 1 to the emissions-side work. Your file is built against the exact ECU software on the car, then operator-verified.
Available solutions
What we can run on the EDC16U1 for this diesel — the precise options narrow down by engine and software version.
Engine variants & ECU software
4 distinct variants for the SEAT LEON on the EDC16U1 ECU. Reference the engine and controller software when you upload.
Variant 2
ECU- Catalog engine
- 2000 140HP
- Engine code
- R4 20L EDC
- Controller brand
- BOSCH
- ECU
- EDC16U1
- Stock power
- 140 HP
- SW upgrade
- 03G906016AJ_7341
- Calibration
- 03G906016AJ_7341
Variant 3
ECU- Catalog engine
- 2000 140HP
- Engine code
- R4 2,0L EDC
- Controller brand
- BOSCH
- ECU
- EDC16U1
- Stock power
- 140 HP
- ECU SW
- 8074
- ECU HW
- 03G906016EC
- SW upgrade
- 03G906016EC_8074
- Calibration
- 03G906016EC_8074
Variant 4
ECU- Catalog engine
- 1900 105HP
- Engine code
- R4 19L EDC
- Controller brand
- BOSCH
- ECU
- EDC16U1
- Stock power
- 105 HP
- SW upgrade
- 03G906016AK_7621
- Calibration
- 03G906016AK_7621
Related vehicles
Other vehicles built on the EDC16U1 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 EDC16U1?
Stage 1, Stage 2, DPF Off, EGR Off, Swirl Flaps Off, Lambda / O2, MAF Off, TVA, NOx Off, AGS, Readiness, Start/Stop Off, Oil Pressure, Limp Mode Off. The exact set depends on the specific engine and software version.
Do you cover the EDC16U1 ECU software on this model?
Yes — the SEAT LEON on the EDC16U1 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.