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 05L907309S 0281039428
Vendors's code: 0281039428
Product code: 3D4E-245A0
Barcode:
Code 39:
ISBN:
€569.11
Price
€569.11
€700.00
Price
€700.00
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 05L907309S 0281039428
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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.
Which numbers should I give when ordering the 05L907309S ECU?
Give VW number 05L907309S and Bosch number 0 281 039 428, ideally with a photo of the label. The Volkswagen model alone is not enough to confirm compatibility.
Engine Control Unit Volkswagen Bosch 05L907309S 0281039428
Replacing the engine control unit in a diesel Volkswagen? This Bosch module carries VW number 05L907309S with the suffix S, which distinguishes it from other versions in the series. The ECU controls injection, starting and engine operation, and its fault memory makes diagnostics easier. Condition: used, working, good.
Numbers needed for ordering
- 05L907309S – VW part number
- 0281039428 – Bosch number, on the label 0 281 039 428
When ordering, give both numbers exactly as they are written. The final letter S defines the software or hardware version and matters for compatibility.
What may indicate an ECU failure
- the engine will not fire or cuts out after a moment,
- no response from the module during diagnostics,
- rough running and jerking with no injector fault,
- restricted power with the engine warning light on.
Check the simplest things first: fuses, earths, battery voltage and the condition of the connector. Reading the fault codes will show whether the faults concern the ECU itself or its surroundings.
Locked or unlocked version
The unlocked version is prepared by us before dispatch, which usually takes 1–2 working days. The locked version reaches the customer with the data and immobiliser of the donor car – intended for workshops that unlock, program and adapt the module to the Volkswagen themselves.
The availability of the PIN / CAR PASS, Virgin, IMMO OFF, auto programming or clone methods depends on the number, software and immobiliser. Not every one will be possible, so ask before buying. Details: ECU preparation options.
Questions and answers
| Is the 05L907309S number enough without the Bosch number? |
|---|
| The VW number is the most important, but the Bosch number additionally confirms the hardware. |
| Which version should I choose if I do not have my own workshop? |
| The unlocked version, prepared before dispatch. We confirm the preparation method with you before you buy. |
| Is 05L907309S different from a 05L907309 with another letter? |
| Yes. The last letter indicates the version, so the modules are not necessarily interchangeable. |
| What condition is the ECU in? |
| Used, working, in good condition. You will find the warranty period in the product features table. |
We take orders and questions about 05L907309S at contact@auto24parts.com.
