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.
Engine Control Unit Volkswagen Golf 1.2 03F906070BJ 5WP44615
Vendors's code: 5WP44615
Product code: 14A5-207EB
Barcode:
Code 39:
ISBN:
€142.28
Price
€142.28
€175.00
Price
€175.00
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
Engine Control Unit Volkswagen Golf 1.2 03F906070BJ 5WP44615
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Shipping
from
€30.00
-
shipping
(Poland)
from
€30.00
-
shipping
(Poland)
Price 30 euros applies shipments to 5 kg on worldwide. Above this weight, please contact us by email to check price
Shipping cost for the selected product
The shipping cost applies to this product (in the selected variant - if applicable). It may change after adding other products to the cart.
Looking for ECU 03F906070BJ for a Golf 1.2?
We offer a used, working engine control unit for the Golf with the 1.2 petrol engine, with VW number 03F906070BJ and manufacturer number 5WP44615. Choose the locked or unlocked version.
Engine Control Unit Volkswagen Golf 1.2 03F906070BJ 5WP44615
The petrol Golf 1.2 uses an ECU that controls fuel injection and ignition based on sensor signals. This unit has VW number 03F906070BJ – with the two-letter suffix BJ – and manufacturer number 5WP44615. It is used, working and in good condition.
Numbers to check
- 03F906070BJ – VW part number
- 5WP44615 – ECU manufacturer number
- 1.2 – capacity of the petrol engine for which we list the unit
The BJ suffix defines the software and hardware version. ECUs with the same 03F906070 base but a different suffix are different versions – so compare the whole number.
Symptoms that may indicate a failure
- the 1.2 engine will not fire up, even though ignition and fuel are working,
- the ECU does not communicate with the diagnostic tool,
- the revs hunt or the engine stalls with no sensor faults,
- an internal unit fault is stored in the memory.
First check the power supply and earths – a wiring fault often mimics an ECU failure.
Choosing a version: locked or unlocked
You can buy the ECU for the Golf 1.2 in one of two versions. We prepare the unlocked one before dispatch, usually within 1–2 working days. The locked one contains the data and immobiliser of the previous car, which is why it is chosen by workshops that will unlock, program and match the unit themselves.
The available preparation method – PIN / CAR PASS, Virgin, IMMO OFF, auto programming or clone – depends on the part number, software and immobiliser. Before buying, ask what is possible for 03F906070BJ, and see the details on the Engine control unit (ECU) variants page.
Questions and answers
| Does ECU 03F906070BJ fit a Golf with a different engine? |
|---|
| We describe it as a unit for the Golf 1.2. For a different engine, compare the numbers and contact us. |
| Are 5WP44615 and 03F906070BJ one ECU? |
| Yes – they are the manufacturer number and the VW part number of the same unit. |
| What condition is the unit in? |
| It is a used part, working and in good condition. You will find the warranty period in the product features table. |
Have a Golf 1.2 and questions about compatibility? Email contact@auto24parts.com.
