Cómo comprar la ECU 05C907309F para VW, Skoda, SEAT y Audi
La ECU Bosch 05C907309F es una unidad de control del motor nueva y original para varios modelos 1.0 TSI 85 kW del Grupo VW — aquí encontrarás todo lo que necesitas para confirmar que estás pidiendo la correcta.
What Is the 05C907309F ECU and Which Cars Use It?
The Bosch 05C907309F (Bosch internal part number 0 261 S107 K0) is a new original engine control unit (ECU) designed for Volkswagen Group vehicles fitted with the 1.0 TSI petrol engine producing 85 kW. It manages fuel injection, ignition timing, and core engine functions.
Confirmed compatible vehicles:
| Make | Model | Engine | Years | |------|-------|--------|-------| | Audi | A1 | 1.0 TSI 85 kW | Check VIN | | SEAT | Arona (KJ7) | 1.0 TSI 85 kW | 2017 → | | Skoda | Fabia (PJ3) | 1.0 TSI 85 kW | 2020–2025 | | Skoda | Kamiq | 1.0 TSI 85 kW | Check VIN | | Skoda | Scala | 1.0 TSI 85 kW | Check VIN | | VW | T-Roc (A11) | 1.0 TSI 85 kW | 2017 → | | VW | T-Cross (C11) | 1.0 TSI 85 kW | 2018 → | | VW | Taigo (CS1) | 1.0 TSI 85 kW | 2021 → |
Always verify against your vehicle's VIN before ordering. Even within the same model range, software variants and emission standards can mean different ECU part numbers are required.
You can view and order the part directly here: Bosch ECU 05C907309F – AutoParts EU.
How to Identify This ECU by OEM Number and Label
The OEM number 05C907309F is printed on the ECU housing label, usually on a white or silver sticker. Look for:
- VW Group part number:
05C 907 309 F - Bosch part number:
0 261 S107 K0
Both numbers will appear on the unit. If you are replacing an existing ECU, cross-check the label on your old unit against these numbers. A single letter suffix difference (e.g., 05C907309E vs 05C907309F) can indicate a different software or hardware revision — they are not always interchangeable.
Cross-Reference Numbers
No third-party or alternative cross-reference numbers have been confirmed for this specific part at the time of writing. The two authoritative numbers to use are:
- OEM (VAG): 05C907309F
- Bosch: 0261S107K0
Avoid purchasing units listed under unverified cross-references without confirming directly with the supplier.
What to Check Before Buying
- Confirm your engine code – The 1.0 TSI family includes several variants. Check your registration documents or the engine bay sticker for the exact engine code.
- Check the existing ECU label – Your current part number is the safest starting point.
- Verify the model year and chassis code – A VW T-Roc built in 2017 and one built in 2023 may use different ECU versions.
- Coding requirements – A new ECU typically requires dealer-level coding/adaptation to your vehicle. Budget for this when planning your repair.
- Condition – This part is sold as new, which avoids the uncertainty of used or reconditioned units.
Browse the full electronics category if you need other control modules or sensors alongside this ECU.
FAQ
Does a new ECU need to be programmed to my car?
Yes. Even a brand-new OEM ECU must be coded and adapted to your specific vehicle using VAG-compatible diagnostic equipment (such as VCDS or the official ODIS system). Without this step, the engine will not start correctly.
Can I use 05C907309F to replace an older suffix like 05C907309E?
Not necessarily. Suffix changes in VAG part numbers often reflect hardware or software revisions. Always check whether the updated suffix is listed as a direct replacement in the VAG parts catalogue or consult a dealer before ordering.
Is this ECU compatible with both automatic and manual gearboxes?
The ECU manages engine functions, not the gearbox directly, but software calibration can differ between transmission types. Confirm your gearbox type and check the full part number match before purchasing.