BSI E01-00 Siemens – original PSA comfort control unit for Citroën/Peugeot. This is a used OEM part that controls the comfort and body functions of the vehicle (central locking, lighting, wipers, turn signals, immobilizer, communication on the VAN bus). Suitable as a replacement for a faulty unit – when the codes match, full compatibility can be achieved after correct coding.

Main OE/REF numbers to look up
– PSA: 9649627780, 1650882380
– Siemens: S118085320A
– Alternative PSA codes/marks: 6580.H2, 6580.FP, 6580.GT (NFP – no longer produced)
– Marking on the label: BSI E01-00 (Siemens/VDO)

Vehicle compatibility
– Citroën Berlingo M49/M59 (approx. 1999–2008, multiplex VAN)
– Citroën Xsara Picasso (approx. 1999–2010)
– Peugeot 206 (approx. 1998–2009)
– Peugeot Partner M49/M59 (approx. 1999–2008)
Note: Real compatibility is mainly governed by the matching of the codes on the label (9649627780 / S118085320A / SW index E01-00) and the car’s equipment. Please compare the numbers and connector design with your original BSI before ordering.

What does the BSI manage?
– Central locking, comfort function, alarm/horn
– Turn signals, lighting, wipers/washers, switching of some relays
– Immobilizer interface, communication with engine ECU and instrument panel
– Diagnostics and telecoding via Lexia/PP2000/DiagBox (VAN network)

When does this part fix the problem
– Self-switching of wipers/lights, turn signal malfunctions
– Central unit falling out, remote not working, problems with immo (unable to start)
– Random electrical faults after loading or after leakage into the interior fuse box

Important for assembly and coding
– Always disconnect the battery before disassembly/assembly (at least 10-15 minutes before work).
– After installation, the BSI must be telecoded to the specific equipment of the car and paired with the immobilizer (PIN code, Lexia/DiagBox).
– The remotes/chips in the keys usually need to be re-adapted.
– Mounting alternatives:
– use “set” (BSI + engine ECU + key chips) – without the need for immo pairing,
– or “virginization/reset” BSI and subsequent encoding into the car.
– Recommended to entrust the coding to an experienced auto mechanic/auto electrician.

Technical information
– Manufacturer: Siemens (VDO)
– Model/Index: BSI E01-00 (VAN multiplex)
– Power supply: 12 V, indoor unit with fuses and multiple multipin connectors
– Location in the car: at the interior fuse box (usually under the steering wheel/left side of the dashboard, depending on the model)

Condition and packaging
– Used original PSA part. Condition see photo/label.
– Supplied as BSI unit alone (without keys, ECU and other accessories unless otherwise stated).

Tips for the right choice
– Follow the matching codes: 9649627780 / S118085320A / E01-00.
– Verify network type (VAN vs. CAN) and vehicle equipment (fog lights, AC, sunroof, etc.) to match telecoding.
– If you are not sure, send the VIN and a photo of the original BSI label – we will check compatibility.

Search keywords
BSI Citroen, BSI Peugeot, comfort unit, BCM, interior fuse box, Siemens S118085320A, 9649627780, 1650882380, 6580H2, 6580FP, 6580GT, Xsara Picasso, 206, Berlingo, Partner, VAN multiplex, telecoding, immobilizer.