9664965580 – 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 9664965580 and BC0091807G. Every unit is bench-tested before shipping.
Vehicle compatibility
Compare the label first: numbers 9664965580 and BC0091807G must be the same as on your original unit, because a different letter at the end of the number means a different version. Confirmed application: Citroën C4 Picasso / Grand Picasso, Citroën C4. The list is open – a missing model does not rule out compatibility, and a listed one does not guarantee it.
Numbers to compare with your unit
| Label | Number (different formats) |
| PSA number | 9664965580 / 96 649 655 80 |
| Magneti Marelli number | BC.0091807.G / BC0091807G |
How does a gearbox control unit fault show?
A control unit fault may be indicated by:
- the gearbox will not engage a gear or stays in neutral (N),
- no communication with the gearbox control unit in diagnostics,
- gearbox warning light or fault message,
- the gearbox goes into limp mode.
Similar symptoms can be caused by the clutch or gear-shift actuator, so a gearbox diagnosis before buying is worthwhile.
Similar numbers
We also stock: 9663876280 / BC0091807D, 9666987680 / BC0101511B, 9666161780 / BC0091807I, 9674693580 / BC0101511D, 9678905780 / BC0101511E. Choose the one whose number matches the label of your unit.
Fitting without programming
You fit this module without programming. The condition: the same numbers on the label as on your unit – check them before ordering. With the same numbers, the unit works after plugging in, without coding.
Warranty
The warranty on this control unit is 6 months. You will find other gearbox control units in Citroën Transmission Control Units (TCU) / Peugeot Transmission Control Units (TCU). Questions about choosing the number? Contact us.
Frequently asked questions about control unit 9664965580
| Question |
Answer |
| Does 9664965580 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 9664965580 will fit? |
The label of your unit must show the same numbers: 9664965580 and BC0091807G, including the letter at the end. |
| Is this an automatic gearbox control unit? |
It controls an automated manual gearbox: a conventional gearbox with a clutch, where gear changes and the clutch are operated by electronically controlled actuators. It is not a torque-converter automatic. |
| Which cars does this control unit fit? |
Confirmed application: Citroën C4 Picasso / Grand Picasso, Citroën C4. The label number has the final say. |