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 TSI Bosch 03C906027AR 0261S06492
Vendors's code: 0261S06492
Product code: 0261S06492
Barcode:
Code 39:
ISBN:
€284.55
Price
€284.55
€350.00
Price
€350.00
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 Polo 1.4 TSI Bosch 03C906027AR 0261S06492
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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.
Looking for a 03C906027AR ECU for your Polo 1.4 TSI?
We have a used, working Bosch engine control unit with VW number 03C906027AR and Bosch number 0261S06492 (0 261 S06 492). Choose the locked or the IMMO OFF version.
Engine Control Unit Volkswagen Polo 1.4 TSI Bosch 03C906027AR 0261S06492
The turbocharged 1.4 TSI petrol engine in the Volkswagen Polo runs under the control of this Bosch ECU. The VW part number is 03C906027AR and the Bosch number is 0261S06492, written on the label as 0 261 S06 492. The module controls fuel injection, ignition and boost based on data from the sensors.
How to identify this ECU
- 03C906027AR – Volkswagen (VW) part number
- 0261S06492 – Bosch number, written on the label as 0 261 S06 492
The letters AR at the end of the VW number identify the software or hardware version. A 03C906027 module with a different ending will not necessarily work with your car.
Symptoms that may point to the ECU
- no start despite a working power supply and starter motor,
- limp mode with reduced power and boost faults with no fault in the ancillaries,
- no communication with the tester,
- rough running and jerking of the engine.
If the symptoms appeared after washing the engine bay or a downpour, first check that no moisture has got into the connector.
Locked or IMMO OFF?
We sell this module in two versions – there is no unlocked version here. The locked one keeps the data and immobiliser of the previous car and is intended for workshops that will program and adapt it themselves. We prepare the IMMO OFF one before dispatch: we disable the immobiliser function in the software.
Before choosing IMMO OFF, ask us whether this solution suits your car – we confirm it before purchase based on the numbers of the 03C906027AR ECU. You will find details on the ECU preparation options page.
Questions and answers
| What is the IMMO OFF version? |
|---|
| It is an ECU prepared before dispatch with the immobiliser function disabled in the software. Before purchase we confirm whether this solution suits your car. |
| Is the 03C906027AR available in an unlocked version? |
| No. We offer this unit locked or IMMO OFF. |
| Are 0261S06492 and 03C906027AR the same ECU? |
| Yes – 03C906027AR is the VW number and 0261S06492 is the Bosch number of the same module. |
| 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. |
Not sure it is the right part? Send the numbers from the sticker to contact@auto24parts.com – we will check them before you buy.
