55571558 MU 5WK9464 – Virgin ECU engine controller for Opel Astra Zafira Meriva
55571558 MU / 5WK9464 is a Siemens / Simtec ECU engine controller used in selected Opel vehicles with 1.6 16V petrol engines and in some 1.8 16V versions. The module is suitable, among others, for Opel Astra, Opel Zafira and Opel Meriva, provided that the number on the label of the old controller matches 55571558 MU or 5WK9464.
The offered ECU engine controller has been prepared as a Virgin version, has a reset PIN code and is ready to be programmed in the vehicle. Adaptation can be performed using diagnostic tools such as Tech-2 or OP-COM. The product is tested, prepared for installation and covered by warranty.
Application of the 55571558 MU 5WK9464 controller
- Opel Astra with 1.6 16V / 1.8 16V petrol engine
- Opel Zafira with 1.6 16V / 1.8 16V petrol engine
- Opel Meriva in selected petrol versions
- Siemens / Simtec controllers with number 55571558 MU
- Part numbers: 55571558, 55571558 MU, 5WK9464
Depending on the vehicle version, this controller may be used with engines from the Z16XER, Z16XEP family or related Opel petrol units. Before purchase, the part number from the old module must always be compared, as many similar controllers were used in Opel Astra, Zafira and Meriva models.
Typical symptoms of a faulty Opel 55571558 controller
- engine does not start,
- no communication with the ECU engine controller,
- immobiliser faults or no start authorisation,
- irregular operation of the 1.6 16V petrol engine,
- engine cutting out while driving,
- throttle body, ignition, lambda sensor or controller power supply faults.
This 55571558 MU 5WK9464 controller is sold in a Virgin version, so after installation it must be programmed to the vehicle. Thanks to the reset PIN code, the immobiliser adaptation can be carried out and the module can be assigned to the vehicle according to the Opel procedure.
FAQ – 55571558 MU 5WK9464 Opel ECU engine controller
Does the 55571558 MU 5WK9464 controller fit Opel Astra 1.6 16V?
Yes, the 55571558 MU 5WK9464 controller fits selected Opel Astra versions with a 1.6 16V petrol engine. The most important step is to compare the number with the old controller, as the Astra model name alone does not guarantee compatibility.
Can 5WK9464 be programmed in Opel Zafira using OP-COM?
Yes, the 5WK9464 controller prepared as a Virgin version can be programmed and adapted in the vehicle using OP-COM or Tech-2. The module has a reset PIN code, so it is ready for the procedure of assigning it to the vehicle.
Is the 55571558 controller suitable for Opel Meriva?
The 55571558 ECU engine controller may be used in selected Opel Meriva versions with a petrol engine. Compatibility should be checked by the part number on the label, preferably by comparing the references 55571558 MU and 5WK9464.
What does the Virgin version mean in the Opel 55571558 MU controller?
The Virgin version means that the 55571558 MU controller has been prepared for reprogramming in another vehicle. The PIN code is reset, and the module can be assigned to the vehicle according to the Opel service procedure.
What faults can a damaged 5WK9464 controller cause in Opel Zafira?
A faulty 5WK9464 controller in Opel Zafira may cause a no-start condition, immobiliser problems, no diagnostic communication, irregular engine operation or ignition system faults. Before replacement, it is recommended to check the wiring, grounds and power supply of the controller.
