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 Golf 1.6 AKL Siemens 06A906019BF 5WP485804
Vendors's code: 5WP485804
Product code: 06A906019BF
Barcode:
Code 39:
ISBN:
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 1.6 AKL Siemens 06A906019BF 5WP485804
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from
€30.00
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(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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What does the number 5WP4858 04 on the 06A906019BF ECU mean?
It is Siemens number 5WP485804 as printed on the label. Together with VW number 06A906019BF, it identifies this used, working ECU for the Golf 1.6 AKL, which we offer locked or unlocked.
Engine Control Unit Volkswagen Golf 1.6 AKL Siemens 06A906019BF 5WP485804
Siemens is the manufacturer of this ECU for the Volkswagen Golf with the 1.6 AKL petrol engine. VW number 06A906019BF ends in the letters BF, and Siemens number 5WP485804 appears on the label as 5WP4858 04. The unit controls fuel injection and ignition; it is used, working and in good condition.
How to identify this ECU
- 06A906019BF – VW part number, the BF suffix is the version
- 5WP485804 – Siemens number, on the label 5WP4858 04
- AKL – 1.6 engine code
The ECU version is defined by the BF suffix – the same base number 06A906019 comes with various letters. Compare the full VW number and the Siemens number with the label on your unit.
When should you suspect the ECU?
- no start even though the ignition and fuel pump are working,
- engine warning light permanently on and an internal ECU fault,
- the unit does not respond to the diagnostic tester,
- the engine suddenly cuts out with no sensor faults.
Before ordering a replacement, check the main power relay and the engine earth.
Locked or unlocked – the difference
The difference lies in who prepares the unit. With the locked version, your workshop does it: the ECU holds the data and immobiliser of the previous car, and the mechanic unlocks, programs and matches it. With the unlocked version, we do it before dispatch, usually within 1–2 working days.
The availability of methods – PIN / CAR PASS, Virgin, IMMO OFF, auto programming, clone – depends on the part number, software and immobiliser. For 06A906019BF, please ask about them before you buy. More on the ECU preparation options page.
Questions and answers
| Will the 06A906019BF unit replace a 06A906019 with a different suffix? |
|---|
| Do not assume so – a different suffix means a different version. Send us a photo of the label. |
| Is the ECU suitable for an engine other than the 1.6 AKL? |
| We list it only for the Golf 1.6 AKL. For a different engine, contact us before you buy. |
| What condition is the Siemens unit in? |
| It is a used, working part in good condition. You will find the warranty period in the product specification table. |
Any questions? Email us at contact@auto24parts.com.
