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 Skoda Octavia 1.4 TSI Bosch 03C906016E 0261S04393 03C906016C
Vendors's code: 0261S04393
Product code: 0261S04393
Barcode:
Code 39:
ISBN:
€162.60
Price
€162.60
€200.00
Price
€200.00
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 Skoda Octavia 1.4 TSI Bosch 03C906016E 0261S04393 03C906016C
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€30.00
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(Poland)
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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Where can I find the number 03C906016E on the Octavia 1.4 TSI ECU?
The VW number, the second number 03C906016C and the Bosch number 0 261 S04 393 are on the sticker on the casing. This used, fully working unit comes from a 2010–2011 Octavia.
Engine Control Unit Skoda Octavia 1.4 TSI Bosch 03C906016E 0261S04393 03C906016C
Bosch unit number 0261S04393 comes from a 2010–2011 Skoda Octavia 1.4 TSI. It controls injection, ignition and the running of the TSI petrol engine in response to signals from the sensors. The casing carries two VW numbers: the main one, 03C906016E, and a second one, 03C906016C.
How to identify this ECU
- 03C906016E – VW/Skoda part number
- 03C906016C – second VW number
- 0261S04393 – Bosch number (0 261 S04 393)
The letters E and C in the VW numbers indicate the software or hardware version. If your ECU has either of these numbers, compare the Bosch number as well.
How to recognise a faulty ECU
- the engine will not start or stalls after a few seconds,
- the engine warning light stays on and the tester cannot connect to the unit,
- uneven idle even though the spark plugs and coils are fine,
- injector or ignition fault codes that come back after being cleared.
It is worth ruling out a damaged wiring loom, corroded connector or weak battery first.
Locked or unlocked – which to choose?
First decide who will fit the unit. Garages that will unlock, program and adapt it to the car themselves usually take the locked version – with the data and immobiliser of the donor car. For everyone else, we recommend the unlocked version, which we prepare in-house before dispatch (normally 1–2 working days).
Possible methods include PIN / CAR PASS, Virgin, IMMO OFF, auto-programming and clone, but not all of them will necessarily be available for 03C906016E – it depends on the part number, software and immobiliser. Write to us before you buy and see the page on ECU variants.
Questions and answers
| Does the 03C906016E ECU fit an Octavia 1.4 MPI? |
|---|
| Do not assume so – this unit comes from the TSI version. We match parts by the number on the label. |
| 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 that, we will work out which preparation method is possible. |
| Can I fit the locked version myself? |
| Only if you have the equipment for unlocking, programming and adaptation. Without it, the unlocked version is the better choice. |
| Is the ECU in working order and does it come with a warranty? |
| Yes, the unit is used, fully working and in good condition. You will find the warranty period in the product specifications table. |
We will help you choose the variant – send the ECU numbers to contact@auto24parts.com.
