Vendors's code: 03G906021AB
Product code: 03G906021JE
Barcode:
Code 39:
ISBN:
Select a product option:
Individual variants may differ in price
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.
Administratorem danych osobowych jest Auto24parts. Przetwarzamy je w celu przesłania odpowiedzi na zapytanie. Więcej informacji dotyczących przetwarzania danych osobowych znajduje się w polityce prywatności.
Price 30 euros applies shipments to 5 kg on worldwide. Above this weight, please contact us by email to check price
The shipping cost applies to this product (in the selected variant - if applicable). It may change after adding other products to the cart.
Tested ECU Engine controller for Seat Leon 2.0 TDI, part numbers 03G906021JE and 03G906021AB (Bosch 0281013621), with warranty and fast shipping.
This ECU Engine controller with part numbers 03G906021JE and 03G906021AB is listed for selected Seat Leon 2.0 TDI diesel applications. The safest way to confirm compatibility is to match the exact numbers from your original ECU label.
You may also see the same identifiers written with spaces, such as 03G 906 021 JE or 03G 906 021 AB—these are simply alternative label formats.
Many units also carry a Bosch reference, such as 0281013621, which can be printed as 0 281 013 621. This helps with identification, but you should still match the vehicle part numbers.
For the best match, compare all markings: 03G906021JE, 03G906021AB and Bosch 0281013621.
The engine ECU manages key diesel engine functions during driving. It processes sensor data and controls essential operating parameters to keep the Seat Leon 2.0 TDI running smoothly and consistently.
That is why selecting the ECU by exact numbers (03G906021JE and 03G906021AB) is so important.
A failing ECU can cause hard starting, loss of power, rough running, limp mode, or a Check Engine light. You may also see recurring fault codes or diagnostic communication issues.
This ECU is offered as a tested unit with warranty and fast shipping.
Depending on the vehicle version and its electronic setup, ECU replacement may require adaptation/coding after installation so it can work correctly with other modules.
Exact matching of 03G906021JE and 03G906021AB makes installation easier and helps ensure correct operation after replacement.
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