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 1.4 Magneti Marelli IAW 4AV.VA 036906014CF 6160039412
Vendors's code: 6160039412
Product code: 036906014CF
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 1.4 Magneti Marelli IAW 4AV.VA 036906014CF 6160039412
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€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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Where can I find the number 036906014CF on the ECU casing?
VW number 036906014CF and Magneti Marelli number 61600.394.12 are on the label on the unit casing. This used, working IAW 4AV.VA ECU comes from a Golf with a 1.4 petrol engine.
Engine Control Unit Volkswagen Golf 1.4 Magneti Marelli IAW 4AV.VA 036906014CF 6160039412
In a Golf with a 1.4 petrol engine, the engine management unit may be a Magneti Marelli IAW 4AV.VA module with VW number 036906014CF. If the engine stalls, will not start or diagnostics cannot see the ECU, this unit is often the cause. The unit on offer is used and working.
Numbers on the label
- 036906014CF – VW part number
- 6160039412 – Magneti Marelli number (61600.394.12)
- IAW 4AV.VA – ECU type designation
The CF suffix in the VW number identifies the version of this ECU. 036906014 ECUs with a different suffix have different software or hardware – check the full number before you order.
What to look out for in the event of a fault
- the engine cuts out and jerks when accelerating,
- no start despite working ignition and fuel pump,
- engine warning light and faults relating to the ECU itself,
- an overheated or water-damaged ECU connector.
Before replacing it, read the fault codes and check the wiring loom – sensors sometimes cause similar symptoms.
Two versions to choose from
The first is a locked ECU, with the data and immobiliser of the previous car – intended for workshops that will unlock, program and match it themselves. The second is an unlocked ECU, which we will prepare before dispatch; this usually takes 1–2 working days.
Not every method (PIN / CAR PASS, Virgin, IMMO OFF, auto programming, clone) is available for every ECU – it depends on the part number, software and immobiliser. Please ask us before you buy. You will find a description on the ECU preparation options page.
Questions and answers
| Can I fit an ECU with a different number suffix? |
|---|
| We do not recommend it. 036906014 versions with different letters may differ in software, so match by the number 036906014CF. |
| How long does it take to prepare the unlocked version? |
| Usually 1–2 working days before dispatch. We confirm beforehand which method is possible. |
| Does the ECU come with a warranty? |
| Yes. It is used, working and in good condition. You will find the warranty period in the product specification table. |
Send questions about compatibility or versions to contact@auto24parts.com.
