9666161780 – original Magneti Marelli control unit
Original, used Magneti Marelli control unit for the 6-speed EGS6 / ETG6 automated manual gearbox. The key numbers to compare are 9666161780 and BC0091807I. Every unit is bench-tested before shipping.
Does it need programming?
No – control unit 9666161780 does not need programming. The numbers on the label just have to match your unit. With the same numbers, the unit works after plugging in, without coding.
See also
Other versions of this type of control unit (always choose by the label number): 9678905780 / BC0101511E, 9664965580 / BC0091807G, 9678905780 / BC0101511F, 9663876280 / BC0091807D, 9666987680 / BC0101511B.
Numbers to compare with your unit
| Label | Number (different formats) |
|---|
| PSA number | 9666161780 / 96 661 617 80 |
| Magneti Marelli number | BC.0091807.I / BC0091807I |
Which cars does 9666161780 fit?
We have confirmed this number in: Citroën C4 Grand Picasso 1.6 HDi, Citroën C4. This is not a complete list – if your car is not on it, the unit may still fit, and a listed model does not guarantee compatibility. The label decides: numbers 9666161780 and BC0091807I must match your unit. A different letter at the end of the number means a different version.
When to suspect the gearbox control unit?
Look out for:
- gearbox warning light or fault message,
- the gearbox goes into limp mode,
- jerking when pulling away or changing gear,
- the gearbox will not engage a gear or stays in neutral (N).
The same symptoms can come from the clutch or gear-shift actuator – run a gearbox diagnosis before you buy the control unit.
Warranty and help with selection
Questions and answers: 9666161780
| Question |
Answer |
| How does an automated manual gearbox differ from an automatic? |
It is a conventional gearbox with a clutch – gear changes and the clutch are operated by electronically controlled actuators. It has no torque converter like an automatic. |
| Does 9666161780 need coding or programming? |
No programming is needed. With the same numbers, the unit works after plugging in, without coding. |
| How do I know that 9666161780 will fit? |
The label of your unit must show the same numbers: 9666161780 and BC0091807I, including the letter at the end. |
| Which cars does this control unit fit? |
Confirmed application: Citroën C4 Grand Picasso 1.6 HDi, Citroën C4. The label number has the final say. |
