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.
BSM Module Peugeot Citroën Siemens BSM-A4 9641257980 S110500002E
Vendors's code: S110500002E
Product code: S110500002E
Barcode:
Code 39:
ISBN:
€101.63
Price
€101.63
€125.00
Price
€125.00
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BSM Module Peugeot Citroën Siemens BSM-A4 9641257980 S110500002E
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How do you check that BSM box 9641257980 fits your Peugeot or Citroën?
This is a used, working BSM-A4 fuse and relay box made by Siemens, PSA number 9641257980, Siemens number S110500002E, for Peugeot and Citroën cars. It fits if the label on your box shows the same numbers and the BSM-A4 version - compare them before buying.
Power supply and circuit protection in PSA cars
The Siemens BSM-A4 9641257980 is an electrical module used in the relevant versions of Peugeot and Citroën cars. The BSM box (Boîtier de Servitude Moteur) distributes power and protects selected electrical circuits of the vehicle.
The module contains fuses and switching elements that serve specific consumers. A properly working box matters for the electrical installation and the systems connected to it.
BSM-A4 version - why the module marking matters
This box carries the factory number 9641257980 and the Siemens marking S110500002E. The label also shows the version BSM-A4.
PSA group cars use different BSM variants that may have similar housings but differ in internal configuration and in the circuits they serve.
Before ordering, check that the numbers and box version match. Do not choose the part by its outer appearance alone.
Electrical problems - when to check the BSM?
A damaged fuse box can cause power interruptions to selected systems, faulty electrical consumers or problems starting the car.
Similar symptoms can, however, come from damaged wires, corroded contacts, blown fuses or faults in connected devices.
Before replacing the module, check the connectors, fuses and wiring and run a vehicle diagnosis.
What to know before replacing the BSM box?
In many applications the BSM box does not need immobiliser programming, because it does not act as a start authorisation unit. This does not mean, however, that every BSM module is interchangeable.
What matters most is matching the right version to the equipment and wiring of the car. Before fitting, make sure the part numbers and configuration match.
FAQ - Siemens BSM-A4 9641257980
1. What is the Siemens S110500002E module?
It is a BSM-A4 fuse and relay box used in the relevant Peugeot and Citroën vehicles. It distributes power and handles selected electrical circuits.
2. Are BSM-A4 and BSI the same module?
No. The BSM supplies and protects electrical circuits, while the BSI is the central body electronics controller. They are different components.
3. Is the number 9641257980 enough to choose the box?
It is the main OEM number, but it is worth also comparing the Siemens marking S110500002E and the BSM-A4 version with the original module.
4. Does the BSM-A4 module need coding after fitting?
In many configurations a correctly matched BSM box can work without immobiliser coding. Still, confirm beforehand that the exact version suits your car.
5. Can the BSM-A4 be replaced with another BSM version?
Do not assume interchangeability without checking. Different BSM variants can have different relay and fuse layouts and serve different circuits.
Looking for a Peugeot or Citroën BSM box? Check the number 9641257980 and the marking S110500002E, then order the right module from Auto24Parts. Used, working, with a 6-month warranty. We help identify parts and ship worldwide.
