What to know about ECU 0261S15090
On this page you can buy a Bosch engine ECU – Bosch number 0261S15090, OEM number 55268849 – intended for Fiat 500. It is a used unit, but working and tested.
Virgin Plug & Play – fitting without programming
- No programming: once plugged in, the Virgin version codes itself to the car and immobiliser – as long as the numbers match and the immobiliser works.
- Every ECU is tested on the bench and fitted to our test car before dispatch.
- Free cloning: if you prefer, send us the damaged ECU or its files – we will transfer the data to this ECU.
- Warranty: 6 months.
How to recognise a faulty ECU
A faulty ECU may be indicated by:
- no communication with the ECU during diagnostics,
- no power supply to the ECU although the fuses are fine,
- rough running, misfires,
- the engine does not start, no spark or no injector control.
Before you buy, run a diagnosis – wiring, power supply and sensors can cause the same symptoms.
Choosing by number
You choose the ECU for Fiat 500 by the numbers on the label: Bosch 0261S15090 and OEM 55268849. If your ECU has a different number, it is a different version – do not rely on the model and year alone.
Numbers to compare
- Bosch number: 0261S15090
- OEM number: 55268849
The full range is in the Fiat engine ECU category, and this manufacturer’s ECUs are collected on the Bosch page.
Common questions about ECU 55268849
What does Virgin Plug & Play mean?
That after fitting the ECU codes itself to the car and immobiliser with no programming – provided the numbers match and the immobiliser works.
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How do I check whether 55268849 fits my Fiat 500?
Look at the sticker on your ECU – both numbers must match: 0261S15090 and 55268849. The car model is not enough.
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Can I clone my old ECU?
Yes, free of charge on request. Send us your damaged ECU or its files and we will transfer the data to ECU 0261S15090.
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