51800536 – original Magneti Marelli control unit
Original, used Magneti Marelli control unit for the Selespeed automated manual gearbox. The key numbers to compare are 51800536 and CFC228F.04. Every unit is bench-tested before shipping.
Fitting
The control unit does not need programming. Compare the numbers with the label of your unit before ordering.
Vehicle compatibility
Compare the label first: numbers 51800536 and CFC228F.04 must be the same as on your original unit, because a different ending of the number means a different version. Confirmed application: Fiat Idea / Lancia Musa 1.4 16V. 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) |
| Fiat number | 51800536 |
| Magneti Marelli number | 62000.053.04 / 6200005304 |
| Control unit type | CFC228F.04 / CFC228F04 |
| Label code | FCB81GC4 |
| Application code | IDEA-MUSA 1370 16VBZ E3 SELE |
See also
Other versions of this type of control unit (always choose by the label number): 55207675 / CFC228F.02, 55201188 / CFC208F.10, 51815932 / CFC208F.20, 55246930 / CFC319F.03, 55245644 / CFC8TDW.01.
Symptoms of a faulty gearbox control unit
A faulty gearbox control unit can cause these symptoms:
- the gearbox goes into limp mode,
- the gearbox will not engage a gear or stays in neutral (N),
- jerking when pulling away or changing gear,
- no communication with the gearbox control unit in diagnostics.
Note: the cause may also be the clutch or gear-shift actuator. A gearbox diagnosis before buying will rule this out.
Warranty
The warranty on this control unit is 6 months. You will find other gearbox control units in Fiat Transmission Control Units (TCU) / Lancia Transmission Control Units (TCU). Questions about choosing the number? Contact us.
FAQ – gearbox control unit 51800536 / CFC228F.04
| Question |
Answer |
| How do I know that 51800536 will fit? |
The label of your unit must show the same numbers: 51800536 and CFC228F.04, including the ending. |
| Which cars use 51800536? |
We have confirmed it in: Fiat Idea / Lancia Musa 1.4 16V. The label number still decides. |
| 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. |
| Does the control unit need programming? |
No, the control unit does not need programming. |