Variant 1
ECU- Catalog engine
- 1200 12V 55HP
- Controller brand
- SIEMENS
- ECU
- SIMOS3
- Stock power
- 55 HP
- SW upgrade
- 03D906033C_1509
- Calibration
- 03D906033C_1509
SKODA · SIMOS3 ECU · petrol
SKODA FABIA SIMOS3 tuning files
Tuning file coverage for the SKODA FABIA running the SIMOS3 ECU. Across the matched variants stock power runs from 55 to 55 HP. 7 distinct variants are catalogued here. On this petrol engine the focus is sharper throttle and useful, repeatable gains. We match the right calibration to your exact software and validate it before delivery.
Available solutions
Applicable work for the SIMOS3 on this petrol. The available set firms up once the exact engine and software are known.
Engine variants & ECU software
7 distinct variants for the SKODA FABIA on the SIMOS3 ECU. Reference the engine and controller software when you upload.
Variant 2
ECU- Catalog engine
- 1200 12V 55HP
- Controller brand
- SIEMENS
- ECU
- SIMOS3
- Stock power
- 55 HP
- ECU SW
- 1209
- ECU HW
- 03D906033B
- SW upgrade
- 03D906033B_1209
- Calibration
- 03D906033B_1209
Variant 3
ECU- Catalog engine
- 1200 12V 55HP
- Controller brand
- SIEMENS
- ECU
- SIMOS3
- Stock power
- 55 HP
- ECU SW
- 4672
- ECU HW
- 03E906033A
- SW upgrade
- 03E906033A_4672
- Calibration
- 03E906033A_4672
Variant 4
ECU- Catalog engine
- 1200 12V 55HP
- Controller brand
- SIEMENS
- ECU
- SIMOS3
- Stock power
- 55 HP
- SW upgrade
- 03E906033AN_7003
- Calibration
- 03E906033AN_7003
Variant 5
ECU- Catalog engine
- 1200 12V 55HP
- Controller brand
- SIEMENS
- ECU
- SIMOS3
- Stock power
- 55 HP
- SW upgrade
- 03D906032A_1501
- Calibration
- 03D906032A_1501
Variant 6
ECU- Catalog engine
- 1200 12V 55HP
- Controller brand
- SIEMENS
- ECU
- SIMOS3
- Stock power
- 55 HP
- ECU SW
- 7001
- ECU HW
- 03E906033AD
- SW upgrade
- 03E906033AD_7001
- Calibration
- 03E906033AD_7001
Variant 7
ECU- Catalog engine
- 1200 12V 55HP
- Controller brand
- SIEMENS
- ECU
- SIMOS3
- Stock power
- 55 HP
- ECU SW
- 4674
- ECU HW
- 03E906033J
- SW upgrade
- 03E906033J_4674
- Calibration
- 03E906033J_4674
Related vehicles
Other vehicles built on the SIMOS3 controller or the same engine — handy when a platform spans several models and makes.
Questions, answered.
Which tuning solutions are available for the SKODA FABIA on the SIMOS3?
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 SIMOS3 ECU software on this model?
Yes — the SKODA FABIA on the SIMOS3 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.