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 Passat 2.0 TDI Siemens VDO 03G906018CE 5WP45610AC
Vendors's code: 5WP45610AC
Product code: 5WP45610AC
Barcode:
Code 39:
ISBN:
€121.95
Price
€121.95
€150.00
Price
€150.00
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 Passat 2.0 TDI Siemens VDO 03G906018CE 5WP45610AC
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from
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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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Does the 03G906018CE ECU fit a 2005 Passat 2.0 TDI?
It does if your module's label shows VW number 03G906018CE and Siemens VDO number 5WP45610AC (written on the label as 5WP45610 AC). The unit comes from a 2005 Passat 2.0 TDI.
Engine Control Unit Volkswagen Passat 2.0 TDI Siemens VDO 03G906018CE 5WP45610AC
Not every Passat 2.0 TDI has a Bosch ECU – this 2005 unit was made by Siemens VDO. The number 5WP45610AC belongs to the Siemens VDO / Continental numbering system, and VW number 03G906018CE denotes an engine control unit. The module controls fuel injection and boost, so if it fails the car is usually immobilised.
Numbers on the label
- 03G906018CE – Volkswagen part number with suffix CE
- 5WP45610AC – Siemens VDO number; written on the label as 5WP45610 AC
Note that on the label the AC suffix is separated by a space. The letters CE in the VW number, on the other hand, indicate the software or hardware version – a 03G906018 module with a different suffix may differ.
Symptoms that may indicate a fault
- the 2.0 TDI engine will not start although the starter motor works,
- limp mode with no damage to the injectors or sensors,
- no communication with the ECU on the diagnostic tool,
- a fault after a voltage spike, water ingress or failed programming.
First check the power supply, earths and the condition of the connector – this rules out the simplest causes.
Locked or unlocked ECU
Choose locked if your workshop will unlock, program and adapt the module itself – it contains the data and immobiliser from the previous Passat. Choose unlocked if you would like us to prepare it before dispatch; this usually takes 1–2 working days.
The possible methods are PIN / CAR PASS, Virgin, IMMO OFF, auto programming and clone, but their availability depends on the part number, software and immobiliser. Please ask before you buy. Description: engine control unit options.
Questions and answers
| Will a Siemens VDO ECU replace the Bosch module in my Passat? |
|---|
| Do not assume so. Compare VW number 03G906018CE with your label – that is what decides the match. |
| Why does the label say 5WP45610 AC with a space? |
| It is the same number as 5WP45610AC, just written differently on the label. |
| What condition is this ECU in? |
| It is a used, fully working part in good condition. You will find the warranty period in the product features table. |
Send a photo of the label to contact@auto24parts.com – we will check whether this ECU fits.
