How to choose ECU 55595619 WZ
This is a Denso MB275700-2090 engine control unit for the Opel Astra H / Zafira B with the 1.7 CDTI engine. It is a Virgin version with the Car Pass (PIN) code reset and is ready to fit. The unit has been refreshed and the housing refurbished – the electronics have never been repaired.
Typical failure symptoms
- starting problems,
- injector control faults,
- uneven running and misfires.
The cause is usually the mounting position – the left front wheel arch next to the bumper, close to the ground, where rain, road spray and snow damage the ECU. Run a diagnosis before buying.
Numbers to compare
These are the markings that matter when matching the ECU:
- Opel / GM number: 55595619
- Letter code: WZ (55595619WZ)
- Denso number: MB275700-2090
- ECU type: Denso 1.7 CDTI
Programming and fitting
- Virgin – Car Pass (PIN) reset: after fitting, the ECU is programmed in the car with Tech-2 or OP-COM.
- Cloning included in the price: send us the EEPROM and FLASH files from your ECU, or the whole ECU – we read the data and return both units.
- Paid extras: EGR OFF, tuning and – on versions with a DPF – DPF OFF.
- Warranty: 6 months.
Vehicle compatibility
The ECU fits the Opel Astra H / Zafira B with the 1.7 CDTI engine. Compatibility is decided by the label number (55595619 WZ / 55595619WZ), not just by the model and year.
Other Denso 1.7 CDTI Opel ECUs in stock
Guide on our blog: Opel 1.7 CDTI Denso ECUs – Astra H, Zafira, Corsa. Looking for a number other than 55595619 WZ? Browse the Opel engine ECUs category or the Denso manufacturer page.
Common questions about ECU 55595619 WZ
What do I program ECU 55595619 WZ with?
With Tech-2 or OP-COM, after fitting it in the car. The Car Pass (PIN) code is reset.
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Is cloning charged?
No, cloning is included in the price. Send the EEPROM and FLASH files from your ECU or the whole ECU – we read the data and return both units.
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Does ECU 55595619 WZ fit my Opel Astra H / Zafira B?
Compare the label of your ECU with the number 55595619 WZ (55595619WZ). If it matches, the ECU fits.
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Why do Denso 1.7 CDTI ECUs fail?
They sit in the left front wheel arch next to the bumper, close to the ground, so rain, road spray and snow damage them.
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