The automatic transmission control unit (often designated as TCU or TCM) is a crucial electronic component responsible for smooth and trouble-free gear shifting. Its failure, most often caused by overheating, short circuits, or water damage, results in jerking, an inability to shift gears, or the vehicle entering limp mode. Purchasing a new module at an authorized dealership is a massive expense, which is why replacing it with a fully functional, used original is the most reasonable solution.
Automatic Transmission Control Unit Mercedes-Benz Vito Viano W639 VDO 5WP20124AM A0005458916
Vendors's code:
Product code: EB6F-7375A
Barcode:
Code 39:
ISBN:
€243.90
Price
€243.90
€300.00
Price
€300.00
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Automatic Transmission Control Unit Mercedes-Benz Vito Viano W639 VDO 5WP20124AM A0005458916
Administratorem danych osobowych jest Auto24parts. Przetwarzamy je w celu przesłania odpowiedzi na zapytanie. Więcej informacji dotyczących przetwarzania danych osobowych znajduje się w polityce prywatności.
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Transmission Control Unit 5WP20124AM – does it fit your Mercedes-Benz Vito?
This is a used, working VDO automatic transmission control unit with part numbers 5WP20124AM and A0005458916. It fits: Mercedes-Benz Vito, Viano W639. Before buying, compare the numbers with the label on the control unit in your car.
Automatic Transmission Control Unit VDO 5WP20124AM – Mercedes-Benz Vito, Viano W639
The automatic transmission control unit (TCU) decides when to change gear: based on road speed, engine load and accelerator position it chooses the shift point and controls the solenoid valves in the gearbox. This unit fits: Mercedes-Benz Vito, Viano W639.
Part numbers to compare
- 5WP20124AM – control unit manufacturer number (VDO)
- A0005458916 – Mercedes-Benz part number
The same numbers should appear on the control unit in your car. The car model alone is not enough – control units differ in software version and configuration.
Signs of a faulty transmission control unit
When the transmission control unit starts to fail, the most common signs are:
- limp mode – driving in one gear only,
- jerky or delayed gear changes,
- a gearbox warning light or message,
- no communication with the control unit in the diagnostic tool.
Before replacing it, check the gearbox oil level and condition, the power supply, earth connections and connectors, and read the fault codes – faulty sensors and solenoid valves cause similar symptoms. After replacement, coding or adaptation with a diagnostic tool may be required.
Frequently asked questions
| Which car does the 5WP20124AM control unit fit? |
|---|
| It fits: Mercedes-Benz Vito, Viano W639. Before buying, compare the numbers with the label on the control unit in your car. |
| Which number should I compare? |
| Ideally both: 5WP20124AM is the control unit manufacturer number and A0005458916 is the Mercedes-Benz part number. You will find both on the control unit label. |
| Does the control unit need programming after replacement? |
| In many cars, yes – after fitting, the control unit is coded or adapted with a diagnostic tool. |
| What condition is this control unit in? |
| It is a used part in good working condition. The warranty period is shown in the product specification table. |
Not sure whether this control unit fits your car? Send us a photo of your control unit label and we will confirm compatibility.
