ECU 03C906027CF / 0261S06557 for the Audi A1 1.4 TFSI
Bosch 0261S06557 with OEM number 03C906027CF is a Bosch MED17.5.5 ECU listed for: Audi A1 1.4 TFSI. It comes as IMMO OFF Plug & Play: once connected, the engine runs without the ECU being added to the immobiliser. Checked before dispatch; warranty: 6 months.
Label markings
- OEM number: 03C906027CF (03C 906 027 CF)
- Bosch number: 0261S06557
- ECU type: Bosch MED17.5.5
Vehicle compatibility
The ECU is listed for: Audi A1 1.4 TFSI. The label numbers decide – OEM 03C906027CF and Bosch 0261S06557 must match your ECU. The model and engine size alone are not enough: a different number, e.g. 03C906027BD (0261S07018), means a different version of the ECU.
Installation and preparation
Fitting means plugging the ECU in where the old one was – no key coding and no programming. It runs without errors after fitting. Cloning the data from your ECU is available on request (send the ECU or files).
Symptoms of a failed ECU
A failed ECU can show different symptoms, for example:
- no diagnostic communication with the ECU
- hard starting on a cold or warm engine
- rough engine running
- the engine stalls while running
Before buying an ECU, rule out the power supply, earth and wiring – they can cause the same symptoms.
Other Audi engine ECUs in stock
Full range: Audi engine ECUs · Bosch ECUs
Frequently asked questions about the 03C906027CF / 0261S06557 ECU
Can I order a clone of my own ECU?
Yes, on request. Send us your ECU or its files and we will transfer the data to the 0261S06557 ECU.
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Is the car model enough to choose the ECU?
No. The label numbers 03C906027CF and 0261S06557 decide. A different number means a different version of the ECU.
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Is the 03C906027CF ECU checked before dispatch?
Yes, every unit is checked before dispatch. Warranty: 6 months.
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