55590118 UE MB275800-8168 Engine ECU Opel Astra H / Zafira B 1.7 CDTI – VIRGIN for programming
Engine ECU with part number 55590118 UE and board marking MB275800-8168 used in Opel vehicles equipped with the 1.7 CDTI diesel engine. The offered module has been prepared in VIRGIN (clear) configuration, meaning immobilizer data has been erased and programming in the vehicle is required.
This solution is identical to installing a brand-new ECU – after installation, adaptation must be performed using appropriate diagnostic equipment. The ECU is fully tested and ready for operation.
Application – Opel 1.7 CDTI
The ECU must always be selected strictly by part number 55590118. This model was used in:
- Opel Astra H – 1.7 CDTI (approx. 2007–2010)
- Opel Zafira B – 1.7 CDTI (approx. 2007–2012)
- Engine type: 1.7 diesel
- Engine code: Z17DTR
Some versions may also include marking UE and PCB number MB275800-8168. The key compatibility number is always 55590118.
Programming – how to activate the ECU?
The VIRGIN version requires programming inside the vehicle. The procedure is standard:
- connect TECH2 or OP-COM diagnostic device
- enter ECU module
- select programming / security
- enter PIN code (Car Pass)
- perform ECU adaptation
The process is quick and identical to installing a new ECU at the dealer.
Typical faults of ECU 55590118 UE – Opel 1.7 CDTI
Engine ECU 55590118 in Opel Astra H and Zafira B is mounted in an area exposed to external conditions – often inside or near the wheel arch. Because of this, one of the most common causes of failure is water ingress and moisture exposure.
- ✔ Water-damaged ECU (wheel arch location)
- ✔ Corrosion of electronics and PCB tracks
- ✔ No communication with ECU
- ✔ Engine starting problems
- ✔ Immobilizer faults or authorization errors
- ✔ Unstable engine operation or limp mode
In many cases, failures develop gradually as moisture enters the ECU and damages electronic components over time. Replacing the module with a tested 55590118 UE VIRGIN ECU is often the safest solution.
Why choose this ECU?
Every engine ECU 55590118 UE MB275800-8168 is carefully tested before shipping – both communication and electronic operation are verified. You receive a fully functional module prepared for installation and programming without the risk of hidden faults.
- ✔ Engine ECU 55590118 UE – VIRGIN version
- ✔ Immobilizer data erased – ready for programming
- ✔ Bench-tested on diagnostic equipment
- ✔ Verified communication and electronics
- ✔ Warranty included
FAQ – frequently asked questions
Does engine ECU 55590118 Opel Astra H 1.7 CDTI require coding?
Yes – this is a VIRGIN version, therefore programming with TECH2 or OP-COM is required after installation.
55590118 UE MB275800-8168 Zafira B 1.7 CDTI – will it fit my vehicle?
If part number 55590118 matches exactly, the ECU will be compatible with your vehicle.
Does ECU 55590118 for Opel 1.7 CDTI require cloning?
No – cloning is not necessary. Standard adaptation inside the vehicle is sufficient.
Opel Astra H 1.7 CDTI Z17DTR ECU 55590118 – what are the symptoms of failure?
Typical symptoms include no communication, engine not starting or immobilizer-related faults.
Is ECU 55590118 UE tested before sale?
Yes – every module undergoes electronic testing before shipping and is covered by warranty.
