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 Golf Seat 2.0 Siemens 037906024AG 5WP4158
Vendors's code: 5WP4158
Product code: 5WP4158
Barcode:
Code 39:
ISBN:
€81.30
Price
€81.30
€100.00
Price
€100.00
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 Golf Seat 2.0 Siemens 037906024AG 5WP4158
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€30.00
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(Poland)
from
€30.00
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shipping
(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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Looking for a Siemens 037906024AG ECU for a Golf or Seat 2.0?
This used, working Siemens engine control unit has VW number 037906024AG and manufacturer number 5WP4158. It comes from a Volkswagen Golf or Seat with a 2.0 petrol engine.
Engine Control Unit Volkswagen Golf Seat 2.0 Siemens 037906024AG 5WP4158
The 2.0 petrol engine in the Volkswagen Golf and Seat could be paired with a Siemens ECU with VW number 037906024AG. The manufacturer number of this unit is 5WP4158. The ECU manages fuel injection, ignition and idle, and when it fails the engine often will not start at all. The unit on offer is used, working and in good condition.
Numbers to compare
- 037906024AG – VW part number
- 5WP4158 – Siemens number
The AG suffix in the VW number is the version designation. 037906024 ECUs with other letters differ in software or hardware – always match by the full number.
Typical symptoms of a faulty ECU
- the engine will not start with a working fuel system,
- stalling once the engine has warmed up,
- no spark or no injector activation,
- the tester cannot establish a connection with the unit.
Before replacing it, check the main power relay and the engine earths.
How to choose a version
The unlocked version is an ECU prepared by us before dispatch; this usually takes 1–2 working days. The locked version holds the data and immobiliser of the previous car in its memory – it is bought by workshops that will unlock, program and match the unit themselves.
Not every method (PIN / CAR PASS, Virgin, IMMO OFF, auto programming, clone) will be possible for 037906024AG – it depends on the part number, software and immobiliser. Please ask before you buy. Description: ECU preparation options.
Questions and answers
| Does this ECU fit a Seat? |
|---|
| The data for this unit lists the Volkswagen Golf and Seat with a 2.0 engine. Check that your ECU has the number 037906024AG. |
| How long is the wait for the unlocked version? |
| Preparation before dispatch usually takes 1–2 working days. We confirm beforehand which unlocking method is possible. |
| Will the unlocked version work without programming? |
| That depends on the chosen preparation method, which we agree before purchase. |
| What about condition and warranty? |
| Used, working, in good condition. You will find the warranty period in the product specification table. |
Not sure about compatibility? Email us at contact@auto24parts.com.
