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 1.2 TSI 03F906070GD 5WP44821
Vendors's code: 5WP44821
Product code: 5WP44821
Barcode:
Code 39:
ISBN:
€121.95
Price
€121.95
€150.00
Price
€150.00
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 1.2 TSI 03F906070GD 5WP44821
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Shipping
from
€30.00
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shipping
(Poland)
from
€30.00
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shipping
(Poland)
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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Does the 03F906070GD ECU fit a Volkswagen 1.2 TSI?
This ECU comes from a Volkswagen with the 1.2 TSI petrol engine. It fits if your unit has the same VW number, 03F906070GD, and the number 5WP44821.
Engine Control Unit Volkswagen 1.2 TSI 03F906070GD 5WP44821
This unit manages the 1.2 TSI petrol engine in a Volkswagen: it controls injection, ignition and engine operation. The VW number 03F906070GD and the second number 5WP44821 let you match it precisely – the engine description alone is not enough, as different ECU versions were used with the 1.2 TSI. The unit is used, in working order and in good condition.
Numbers to compare
- 03F906070GD – VW part number, ending GD
- 5WP44821 – 5WP… number (Siemens VDO / Continental numbering)
- 1.2 TSI – the engine the unit comes from
The final letters GD describe the software or hardware version. If your 1.2 TSI has an ECU with a different ending, ask us before ordering.
Symptoms of ECU failure in the 1.2 TSI
- limp mode and loss of power with no sensor fault,
- misfires on several cylinders at once,
- the engine cranks but will not start,
- no connection with the unit during diagnostics.
First rule out faulty coils, sensors and wiring – only then diagnose the unit itself.
The 03F906070GD ECU in two versions
Unlocked – prepared by us before dispatch, which usually takes 1–2 working days. Locked – with the data and immobiliser of the previous car, for workshops that will unlock, program and match it themselves.
The availability of the preparation methods (PIN / CAR PASS, Virgin, IMMO OFF, auto programming, clone) varies with the part number, software and immobiliser, so ask us about them before you buy. You can read more on the ECU preparation options page.
Questions and answers
| Is every 1.2 TSI ECU interchangeable? |
|---|
| No. Match it by the number 03F906070GD, not by engine size alone. |
| Will the locked version work straight away? |
| No – it has to be unlocked, programmed and matched to the immobiliser. |
| How long does preparation take? |
| Usually 1–2 working days before dispatch. |
| What condition is the ECU in? |
| Used, in working order, in good condition. You will find the warranty period in the product features table. |
Send any questions about compatibility with the 1.2 TSI to contact@auto24parts.com.
