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 Polo 1.4 Magneti Marelli IAW 4HV.AD 03C906024AD 6160141702
Vendors's code: 6160141702
Product code: IAW4HVAD
Barcode:
Code 39:
ISBN:
406,50 zł
Price
406,50 zł
500,00 zł
Price
500,00 zł
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 1.4 Magneti Marelli IAW 4HV.AD 03C906024AD 6160141702
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
120,00 zł
-
shipping
(Poland)
from
120,00 zł
-
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.
Does the IAW 4HV.AD 03C906024AD module fit your Polo 1.4?
It does, if the car has a 03C906024AD ECU with Magneti Marelli number 61601.417.02. This is a used, working module from a Volkswagen Polo 1.4 with a petrol engine.
Engine Control Unit Volkswagen Polo 1.4 Magneti Marelli IAW 4HV.AD 03C906024AD 6160141702
The IAW 4HV.AD family are Magneti Marelli ECUs, and this unit with VW number 03C906024AD comes from a Volkswagen Polo 1.4 with a petrol engine. The manufacturer number 6160141702 is written on the label as 61601.417.02. The module regulates fuel injection and ignition based on signals from the engine sensors.
How to identify this ECU
- 03C906024AD – Volkswagen (VW) part number
- 6160141702 – Magneti Marelli number, written on the label as 61601.417.02
- IAW 4HV.AD – Magneti Marelli ECU family
The letters AD at the end of the VW number indicate the module version. Also compare the Magneti Marelli number with the sticker on your ECU.
Symptoms of a faulty engine ECU
- 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
| Does this module fit every Polo? |
|---|
| No. Different engine ECUs were used in this model, so compatibility is decided by the number on the label, not by the car model alone. |
| Where can I find the number 03C906024AD? |
| On the sticker on the ECU casing. Copy all the numbers from the label, including the letters at the end. |
| 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. |
| What condition is this ECU in? |
| It is a used part, working and in good condition. You will find the warranty period in the product features table. |
Questions about compatibility or the version? Email contact@auto24parts.com and attach a photo of your ECU label.
