What to know about ECU 55571557 MT
On this page you can buy a Siemens engine control unit for the Opel Astra / Zafira / Meriva with a petrol engine. It is a Virgin version, i.e. reset, with a clean Car Pass (PIN) code, prepared for programming in the car.
Label details
- Opel / GM number: 55571557
- Letter code: MT (55571557MT)
- ECU type: Siemens 5WK9430
Compare them with the label on your own ECU.
How to get ECU 55571557 MT running
The ECU is reset and the Car Pass (PIN) code is clean. After fitting you program it with Tech-2 or OP-COM. If you prefer, we can set the Car Pass (PIN) code for you and write it on the ECU. Cloning is included in the price – just send the files from your ECU or the whole unit; we transfer the data and return both. The warranty is 6 months.
Does ECU 55571557 MT fit your car?
Model and year of manufacture are not enough – compare the label of your ECU with the number 55571557 MT (55571557MT). If it matches, it is the same ECU for the Opel Astra / Zafira / Meriva with a petrol engine.
Symptoms of a fault
- the engine does not start,
- no communication with the ECU in diagnostics,
- a fault after water ingress or a short circuit.
These symptoms can also have another cause, so run a diagnosis before buying.
Other Siemens Opel ECU numbers
Looking for a number other than 55571557 MT? Browse the Opel engine ECUs category or the Siemens manufacturer page.
Questions and answers: 55571557 MT
What does the Virgin version mean?
The ECU is reset and has a clean Car Pass (PIN) code, so it can be programmed in the car.
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How do I check that 55571557 MT fits my Opel Astra / Zafira / Meriva?
Look at the label on your ECU – it must show the number 55571557 MT (55571557MT). The model and year alone are not enough.
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How do I program ECU 55571557 MT?
The ECU is Virgin with a clean Car Pass (PIN) code – after fitting it is programmed with Tech-2 or OP-COM. You can also get the PIN code from us written on the ECU, or order cloning included in the price.
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Can you set the Car Pass (PIN) code?
Yes, on request we set the Car Pass (PIN) code and write it on the ECU.
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