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 Superb 1.9 TDI Bosch EDC16U34 03G906021QM 0281014111 03G906021AN
Vendors's code: 0281014111
Product code: 0281014111
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 Skoda Superb 1.9 TDI Bosch EDC16U34 03G906021QM 0281014111 03G906021AN
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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 on the casing are the numbers 03G906021QM and 03G906021AN?
Both VW numbers are printed on the ECU label, next to the Bosch number 0 281 014 111. This EDC16U34 unit comes from a 2008 Skoda Superb 1.9 TDI and is fully working.
Engine Control Unit Skoda Superb 1.9 TDI Bosch EDC16U34 03G906021QM 0281014111 03G906021AN
This engine control unit comes from a 2008 Skoda Superb 1.9 TDI. It belongs to the Bosch EDC16U34 family and has two VW numbers: the main one, 03G906021QM, and an additional one, 03G906021AN. It manages injection and turbo boost and checks the immobiliser when the engine is started.
Numbers to compare
- 03G906021QM – VW/Skoda number of the complete unit,
- 03G906021AN – second VW number from the label,
- 0281014111 – Bosch number (0 281 014 111),
- EDC16U34 – ECU family.
For matching, use the number 03G906021QM and compare it letter for letter. The second number alone is not enough, as it may appear with different software.
Symptoms that may indicate a fault
- the starter turns but the engine will not fire,
- intermittent running and cutting out at idle,
- engine warning light on and loss of power,
- no communication with the unit.
Before replacing, check the power supply, earth and connectors, and read the fault memory.
Workshop option and prepared option
For workshops we have the locked option: an ECU with the previous car's data and immobiliser, which the technician will unlock, program and match. If that is not possible for you, choose the unlocked option – we will prepare it before dispatch, usually within 1–2 working days.
Bear in mind that PIN / CAR PASS, Virgin, IMMO OFF, auto programming and cloning are not always possible. The part number, software and immobiliser all play a part – so ask about 03G906021QM before buying. More: ECU preparation options.
Questions and answers
| Does the ECU from a 2008 Superb fit a different model year? |
|---|
| The year is only a guide – the main number on the label is what decides. |
| Can I order using only the number 03G906021AN? |
| We do not recommend it. Give us the main number or send a photo of the label. |
| What does EDC16U34 mean? |
| It is a family of Bosch Electronic Diesel Control units for diesel engines. |
| What condition is it in? |
| Used, fully working and in good condition. You will find the warranty period in the product specification table. |
Email us: contact@auto24parts.com.
