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 Polo 03F906070FR 5WP44803
Vendors's code: 5WP44803
Product code: 03F906070FR
Barcode:
Code 39:
ISBN:
€284.55
Price
€284.55
€350.00
Price
€350.00
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 Polo 03F906070FR 5WP44803
Administratorem danych osobowych jest Auto24parts. Przetwarzamy je w celu przesłania odpowiedzi na zapytanie. Więcej informacji dotyczących przetwarzania danych osobowych znajduje się w polityce prywatności.
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.
What do the letters FR in the number 03F906070FR mean?
They identify the version of the engine ECU from a Volkswagen Polo with a petrol engine; the manufacturer number of this module is 5WP44803. We sell it used and working.
Engine Control Unit Volkswagen Polo 03F906070FR 5WP44803
The two letters FR at the end of 03F906070FR indicate a specific version of this engine ECU for a Volkswagen Polo with a petrol engine. The second number on the casing, 5WP44803, is the ECU manufacturer's number. The module manages fuel injection and ignition, so a failure affects starting and how the engine runs.
How to identify this ECU
- 03F906070FR – Volkswagen (VW) part number
- 5WP44803 – ECU manufacturer's number
A 03F906070 ECU with an ending other than FR has different software or hardware. So go by the full number on the sticker.
Typical failure symptoms
- the engine will not run at all, even though the power supply is fine,
- the engine warning light comes on intermittently and the faults return after clearing,
- incorrect control of the injectors or ignition coils,
- increased fuel consumption and rough idling.
If the symptoms appeared after washing the engine bay or a downpour, first check that no moisture has got into the connector.
Available ECU versions
The unlocked version is an ECU we prepare before dispatch – this usually takes 1–2 working days. We agree the preparation method individually, because PIN / CAR PASS, Virgin, IMMO OFF, auto programming or clone are not available for every number, software and immobiliser.
The locked version reaches you with the data and immobiliser of the previous vehicle. It is the option for a workshop that will program and adapt the module itself. Description of all options: ECU preparation options.
Questions and answers
| What should I send before ordering the unlocked version? |
|---|
| A photo of the label on your current ECU or all the numbers on it. Based on this, we will check which preparation methods are possible. |
| Can a workshop handle the locked version? |
| Yes, if it has equipment for programming and immobiliser adaptation. Without such equipment, it is better to choose the unlocked version. |
| Will the engine start straight away after fitting the 03F906070FR? |
| Not with the locked version – the ECU must be programmed and adapted to the immobiliser. With the unlocked version it depends on the preparation method we agree before dispatch. |
| What condition is this part in? |
| Used, in good condition and fully working. You will find the warranty period in the product features table. |
We will help you choose the version – just send a message to contact@auto24parts.com with the numbers from the label.
