55590157 WH – Denso MB275800-8126 ECU in Virgin version
Denso MB275800-8126 module for the Opel Astra H / Zafira B with the 1.7 CDTI engine with the Car Pass (PIN) code reset. The unit has been refreshed and the housing refurbished – the electronics have never been repaired. It just needs fitting and programming in the car.
Two ways to start the ECU
- Programming after fitting with Tech-2 or OP-COM – the ECU has the Car Pass (PIN) code reset.
- Cloning included in the price – send the EEPROM and FLASH files or your whole old ECU, we read the data and return both.
Paid services: EGR OFF, tuning, DPF OFF (only on versions with a DPF). Warranty: 6 months.
ECU 55590157 WH numbers
The label of this unit shows:
- Opel / GM number: 55590157
- Letter code: WH (55590157WH)
- Denso number: MB275800-8126
- ECU type: Denso 1.7 CDTI
Mounting position and failures
On the 1.7 CDTI the Denso ECU sits in the left wheel arch, right next to the front bumper and close to the ground. Over time rain, road spray and snow damage it, which shows up as starting problems, injector control faults, uneven running and misfires. Confirm the fault with a diagnosis before buying.
How to check compatibility
The most reliable way is to compare labels. Your ECU should show the number 55590157 WH (55590157WH). This unit is intended for the Opel Astra H / Zafira B with the 1.7 CDTI engine, but the number decides the match, not the model or year.
Other Opel 1.7 CDTI ECU numbers
We describe Denso 1.7 CDTI ECUs in detail on our blog: Opel 1.7 CDTI Denso ECUs – Astra H, Zafira, Corsa. Looking for a number other than 55590157 WH? Browse the Opel engine ECUs category or the Denso manufacturer page.
Common questions about ECU 55590157 WH
What do I program ECU 55590157 WH with?
With Tech-2 or OP-COM, after fitting it in the car. The Car Pass (PIN) code is reset.
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What is the warranty on ECU 55590157 WH?
The warranty is 6 months.
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How does cloning ECU 55590157 WH work?
You send us the EEPROM and FLASH files from your ECU or the whole ECU, and we read the data and return both units. Cloning is included in the price.
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Does ECU 55590157 WH fit my Opel Astra H / Zafira B?
Compare the label of your ECU with the number 55590157 WH (55590157WH). If it matches, the ECU fits.
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