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, Seat Cordoba 1.6 Magneti Marelli IAW 1AV.V6 6K0906030D 6160039802
Vendors's code: 6160039802
Product code: 6K0906030D
Barcode:
Code 39:
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£114.00
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Engine Control Unit Volkswagen Polo, Seat Cordoba 1.6 Magneti Marelli IAW 1AV.V6 6K0906030D 6160039802
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(Poland)
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What does the number 6K0906030D on a 1.6 engine ECU mean?
It is the Volkswagen part number of the Magneti Marelli IAW 1AV.V6 ECU used in the Polo and Seat Cordoba with the 1.6 petrol engine. The module is used, working and available locked or unlocked.
Engine Control Unit Volkswagen Polo, Seat Cordoba 1.6 Magneti Marelli IAW 1AV.V6 6K0906030D 6160039802
The Seat Cordoba and Volkswagen Polo with the 1.6 petrol engine can share an engine ECU – this one, numbered 6K0906030D. The manufacturer is Magneti Marelli, and the IAW 1AV.V6 family are modules for petrol engines. The ECU combines the signals from the sensors and uses them to set the injection time and ignition advance. When it fails, the car is most often immobilised.
How to read the numbers
- 6K0906030D – VW part number (6K0 906 030 D)
- 6160039802 – Magneti Marelli number, 61600.398.02 on the sticker
- IAW 1AV.V6 – family designation
The “906” section denotes the engine ECU group, and the final D is the module version. If the ECU in your car has a different letter, check compatibility with us before buying.
Symptoms worth watching for
- the engine will not start, even though there is a spark at the test plugs and fuel in the rail,
- the engine cuts out by itself once warm,
- no response to the accelerator pedal, or jerking,
- no connection with diagnostics.
First check the ECU power relay and the earths – in older cars they are a frequent culprit.
Module preparation options
We prepare the unlocked version before the parcel is sent; this usually takes 1–2 working days. The locked version holds the data and immobiliser of the car it came from – it is chosen by workshops that program and adapt ECUs themselves.
The available methods (PIN / CAR PASS, Virgin, IMMO OFF, auto programming, clone) vary depending on the number, software and immobiliser – please ask us before buying. All options are described on the ECU preparation options page.
Questions and answers
| Does this ECU fit a Cordoba 1.6? |
|---|
| According to our data, yes – it was used in the Seat Cordoba and Polo 1.6. Confirm the number 6K0906030D on your module. |
| Can I fit the locked version without a workshop? |
| No. Such an ECU needs programming and adaptation to the immobiliser. |
| What condition is the ECU in? |
| It is a used part, working and in good condition. You will find the warranty period in the product features table. |
Any doubts? Email contact@auto24parts.com and give us the numbers from your ECU.
