55590117 UD MB275800-8179 – ECU ENGINE CONTROLLER Opel Astra H / Zafira B 1.7 CDTI – VIRGIN Version
The offered ECU ENGINE CONTROLLER 55590117 with UD designation and manufacturer number MB275800-8179 is an original module used in Opel vehicles with the 1.7 CDTI engine. The unit is responsible for full engine management – fuel injection, boost pressure, EGR control, exhaust emissions control and communication with the immobilizer.
The most important selection criterion is compatibility by part number. If your controller has the number 55590117 and the designation MB275800-8179 UD, the module will be correct.
Product condition – VIRGIN version (clean)
The controller is prepared as VIRGIN, which means:
- reset PIN CODE,
- data from the previous vehicle removed,
- no connection with the previous immobilizer,
- programming in the vehicle required.
After installation, adaptation using service tools such as Tech-2 or OP-COM is required. This is a standard procedure when installing a clean controller in Opel vehicles.
Application – vehicle compatibility
The controller 55590117 / MB275800-8179 UD was used in:
- Opel Astra H 1.7 CDTI (approx. 2004–2010)
- Opel Zafira B 1.7 CDTI (approx. 2005–2014)
Typical engine units:
- Z17DTR
- A17DTR
- other 1.7 CDTI variants depending on market and emission standard
Note: Within the 1.7 CDTI range there are different software and configuration versions. Final compatibility is confirmed only by the number on the controller label. If in doubt, please send a photo of the old module or the VIN number.
Refurbished housing and improved sealing
The controller has a refurbished housing and has been re-sealed with high-quality technical silicone.
A neutral silicone (not vinegar-based or alcohol-based) was used, which:
- does not cause corrosion of electronics,
- does not react with aluminium and PCB components,
- remains flexible for a long time,
- provides better protection against moisture.
Important: despite the use of improved sealing, there is no guarantee of full resistance to repeated flooding. This model is factory-located in a place exposed to water, which is a frequent cause of damage. It is recommended to regularly check the condition of the installation chamber and the drainage of water outlets.
Damage resulting from flooding is treated as an external factor related to the vehicle operating conditions.
Tests and warranty
- Module fully checked before shipping.
- Communication and basic function control.
- Warranty.
- Safe packaging for transport.
FAQ – most frequently asked questions
Is controller 55590117 for Opel Astra H 1.7 CDTI plug & play?
No. The VIRGIN version requires programming using Tech-2 or OP-COM.
MB275800-8179 in Opel Zafira B 1.7 CDTI – does it fit engine A17DTR?
Yes, if the number on your controller is 55590117 / MB275800-8179 UD. Compatibility is always confirmed by part number.
Does 55590117 UD require a PIN code after installation?
Yes, during immobilizer adaptation a PIN (CarPass) or service procedure may be required.
Opel Astra H 1.7 CDTI Z17DTR – which ECU ENGINE CONTROLLER should I choose?
If the originally installed module was 55590117 MB275800-8179 UD, this version will be correct.
Is controller 55590117 resistant to water?
The housing has been professionally sealed with neutral silicone, however this model is structurally exposed to moisture – periodic inspection of the installation location is recommended.
