The automatic transmission control unit (often designated as TCU or TCM) is a crucial electronic component responsible for smooth and trouble-free gear shifting. Its failure, most often caused by overheating, short circuits, or water damage, results in jerking, an inability to shift gears, or the vehicle entering limp mode. Purchasing a new module at an authorized dealership is a massive expense, which is why replacing it with a fully functional, used original is the most reasonable solution.
ECU Engine Controller VOLKSWAGEN POLO 6R 1.2 TDI DELPHI 28291398 03P906021B
Vendors's code: 03P906021B
Product code: 28291398
Barcode:
Code 39:
ISBN:
Select a product option:
Individual variants may differ in price
product option
Important: Depending on the ECU type and vehicle model, not all of the options listed below may be available.
To select the correct option for your vehicle and ECU, please contact us before purchasing:
contact@auto24parts.com
1. Locked
This option is intended for professional workshops with the required specialist equipment and technical knowledge.
The ECU has been removed from a vehicle intended for recycling and still contains the immobilizer data and other information from the previous vehicle. Before it can be used in another car, it must be unlocked and then programmed using specialist automotive diagnostic equipment.
2. Unlocked
Several preparation methods may be available. The possible options depend on the ECU type, vehicle model and immobilizer system. Please contact us before purchasing, as some preparation methods are not available for every ECU.
Our electronics specialists can prepare the ECU in one of the following ways:
a) ECU with PIN code (Car Pass)
The PIN code is supplied, but programming with a suitable diagnostic tool is still required. After installing the ECU, it must be reset using the supplied PIN code and then programmed to the vehicle’s immobilizer system.
b) VIRGIN ECU
The data from the previous vehicle is removed and the ECU is restored to a clean, factory-like state. After installation, it must be programmed to the vehicle using a compatible specialist diagnostic tool. Unless another preparation method is specified in the product description, this is the standard unlocking option for most of our ECUs.
c) Plug & Play – IMMO OFF
The immobilizer function is disabled in the ECU. After installation, the engine can start without additional immobilizer programming. Please note that the vehicle will no longer have an active immobilizer function, and an immobilizer warning light or fault code may remain, depending on the vehicle model.
d) Plug & Play – Automatic Programming
After installation, the ECU automatically learns and saves the required vehicle data. No additional programming is normally required.
e) Plug & Play – 1:1 Clone
The data from your original ECU is copied to another fully functional ECU. The cloned unit is then ready for installation without additional programming.
You must send us your original ECU so that we can transfer its data to the replacement unit.
The original ECU must have working communication with the vehicle, a diagnostic tool or our programming equipment. If the required data cannot be read, a complete 1:1 clone may not be possible.
3. Complete Plug & Play Set
A complete matched set containing the ECU, immobilizer components and all other parts required to start the vehicle without additional programming. All components supplied in the set must be installed in the vehicle.
Important:
Dispatch time depends on the selected option. If an unlocked or specially prepared version is ordered, the preparation service usually requires an additional 1–2 business days.
Ask about the product
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Price 30 euros applies shipments to 5 kg on worldwide. Above this weight, please contact us by email to check price
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ECU ENGINE CONTROLLER VOLKSWAGEN POLO 6R 1.2 TDI DELPHI 28291398 03P906021B
Tested Delphi engine controller for Volkswagen Polo 6R 1.2 TDI with part numbers 28291398 and 03P906021B, guaranteed and shipped quickly to the customer.
ECU Engine Controller VOLKSWAGEN POLO 6R 1.2 TDI DELPHI 28291398 03P906021B
Which models does the 28291398 controller fit?
The controller with number 28291398 fits Volkswagen Polo 6R models with a 1.2 TDI engine, ensuring full compatibility and reliability.
What is the role of the ECU with number 03P906021B?
The ECU with number 03P906021B manages engine operation by controlling parameters such as fuel injection and ignition, affecting performance and emissions.
What are the symptoms of a faulty 28291398 controller?
A faulty 28291398 controller may cause engine start issues, uneven idling, or increased fuel consumption.
Where to find the number on the 03P906021B controller?
The number 03P906021B can be found on the controller housing, usually as a sticker or engraved marking, making identification easier.
Does the 28291398 controller require programming after installation?
After installation, the 28291398 controller may require programming to ensure optimal integration with the vehicle's systems. We offer technical support and a warranty on the product.