A faulty transmission control module (TCM) most often causes limp mode with the gearbox stuck in one gear, harsh jolts when you select D or R, erratic gear changes, flashing PRND letters and a gearbox or engine warning light. However, the same symptoms are often caused by a low gearbox oil level, a weak battery, a poor earth or a faulty sensor. To test a transmission control module, start by checking the battery and reading the fault codes with a diagnostic tool that can talk to the gearbox control unit, then check the power supply, the connector, the oil and the live data. Below we explain the symptoms, the diagnostic steps and what the most common fault codes mean.
Engine Control Unit Volkswagen Bosch 04E907309CB 0261S14671
Vendors's code: 0261S14671
Product code: 0261S14671
Barcode:
Code 39:
ISBN:
€101.63
Price
€101.63
€125.00
Price
€125.00
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 Bosch 04E907309CB 0261S14671
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.
How does the 04E907309CB ECU differ from the 04E907309AB?
They differ in the ending of the VW number (CB and AB) and in the Bosch number – they are different versions. We are offering the 04E907309CB with the Bosch number 0261S14671, used and in working order.
Engine Control Unit Volkswagen Bosch 04E907309CB 0261S14671
What distinguishes this unit from other 04E907309 ECUs is the CB ending and the Bosch number 0261S14671. It is a unit for a petrol-engined Volkswagen which, using data from the sensors, controls injection, ignition and the throttle. It is used, in working order and in good condition, and before dispatch we check that the numbers match the listing.
How to identify this ECU
- 04E907309CB – VW number with the ending CB
- 0261S14671 – Bosch number, as written on the label: 0 261 S14 671
You match the ECU by its full number. Even when the 04E907309 prefix is the same, a different ending means a different software or hardware version.
When to suspect the ECU?
- the engine does not respond to the accelerator or goes into limp mode,
- no injection or spark even though the components are fine,
- internal unit faults that cannot be cleared,
- damage after water ingress.
Check the wiring loom and plugs first – a chafed wire or a loose plug produces similar symptoms. Reading the fault memory with a tester will also help.
Your choice: locked or unlocked
We prepare the unlocked version of the 04E907309CB ECU before dispatch – this usually takes 1–2 working days. The locked version has the data and immobiliser of the previous car; it is chosen by workshops that will unlock, program and match it themselves.
Not every method – PIN / CAR PASS, Virgin, IMMO OFF, auto programming or clone – works with every unit. It depends on the part number, software and immobiliser, so ask before you buy. More: ECU preparation options.
Questions and answers
| I have a 04E907309AB ECU – will this one fit? |
|---|
| Do not assume they are interchangeable; choose a unit with the same number as in your car. |
| Is this a petrol engine control unit? |
| Yes, the Bosch 0 261 series indicates this. |
| What should I send before ordering? |
| The numbers from the label of your current ECU or a photo of it. |
| Condition and warranty? |
| Used, in working order, in good condition. You will find the warranty period in the product features table. |
If you have any questions, email us: contact@auto24parts.com.
