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 Audi A6 C5 2.5 TDI Bosch 0260002885 4B0927156FK
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Product code: FE4D-755E8
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Code 39:
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1 300,81 zł
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1 300,81 zł
1 600,00 zł
Price
1 600,00 zł
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Automatic Transmission Control Unit Audi A6 C5 2.5 TDI Bosch 0260002885 4B0927156FK
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(Poland)
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Transmission Control Unit 0260002885 – does it fit your Audi A6 C5?
This is a used, working Bosch automatic transmission control unit with part numbers 0260002885 and 4B0927156FK. It fits: Audi A6 C5 with 2.5 TDI engine. Before buying, compare the numbers with the label on the control unit in your car.
Automatic Transmission Control Unit Bosch 0260002885 – Audi A6 C5
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: Audi A6 C5 with 2.5 TDI engine.
Part numbers to compare
- 0260002885 – control unit manufacturer number (Bosch), on the label: 0 260 002 885
- 4B0927156FK – Audi part number, on the label: 4B0 927 156 FK
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 0260002885 control unit fit? |
|---|
| It fits: Audi A6 C5 with 2.5 TDI engine. Before buying, compare the numbers with the label on the control unit in your car. |
| Which number should I compare? |
| Ideally both: 0260002885 is the control unit manufacturer number and 4B0927156FK is the Audi 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.
