ECU Engine Controller OPEL ZAFIRA 55563495 5WK9427
Which versions of the Opel Zafira B use the ECU 55563495 5WK9427?
The ECU engine controller OPEL ZAFIRA 55563495 5WK9427 was fitted in the Opel Zafira B equipped with petrol engines. The module handles complete engine management, fuel injection control and communication with the vehicle's on-board electronics.
The controller 5WK9427 / 55563495 was factory-installed in selected model years of the Zafira B. To confirm compatibility, compare the numbers 55563495 and 5WK9427 with the markings on your original unit.
What role does the ECU module 5WK9427 play in the Opel Zafira?
The engine controller 5WK9427 manages fuel delivery, ignition timing and monitors the sensors responsible for the air-fuel mixture. Module 55563495 ensures optimum engine efficiency while keeping fuel consumption to a minimum during everyday driving.
The ECU 55563495 / 5WK9427 also coordinates the emission control system, variable valve timing and other electronic components that influence the performance and refinement of the engine in the Opel Zafira B.
How can you tell the engine controller 55563495 in the Opel Zafira needs replacing?
The most common signs of a faulty ECU 55563495 5WK9427 in the Opel Zafira B are difficulty starting the engine, jerking under acceleration or the engine stalling unexpectedly. Noticeably higher fuel consumption with no obvious cause is another frequent symptom.
A defective ECU module 5WK9427 often triggers the engine warning light on the dashboard and generates multiple fault codes during diagnostics. Every controller 55563495 in our store is thoroughly tested before dispatch.
Does the 5WK9427 code have to match the original module in the Zafira?
Yes — the code 5WK9427 identifies the specific ECU version with dedicated software and calibration for the Opel Zafira B. The number 55563495 confirms hardware-level compatibility. Both markings should be identical to those on your original unit.
Installing an ECU with a different 5WK9427 code or 55563495 number may result in starting failures, adaptation errors or irregular engine behaviour in the Opel Zafira after the replacement.
Does the ECU 55563495 5WK9427 for the Opel Zafira require coding after fitting?
Depending on the vehicle configuration, the engine controller 5WK9427 / 55563495 may need immobiliser synchronisation or adaptation to the specific Opel Zafira B. The scope of programming depends on the model year and trim level.
We recommend entrusting the installation and any programming of the ECU 55563495 / 5WK9427 to an experienced workshop equipped with professional diagnostic tools, ensuring a smooth and hassle-free process.
