Description
BSM R03 DELPHI unit for Citroën and Peugeot vehicles. Some of the mounting brackets may be damaged — this does not affect functionality. This is a used part with a warranty of functionality.
Description
The BSM (Body Systems Module) R03 by Delphi is a compact comfort and power distribution unit used on a range of Citroën and Peugeot models. It groups fuses, relays and several vehicle body-control functions in one module to manage lighting, central locking, wipers, power windows and other electrical circuits. This used unit is supplied with a guarantee of working condition; visible damage may be limited to one or more plastic mounting brackets and does not impact electrical performance.
Benefits for Mechanics and DIYers
- Direct swap option for compatible vehicles — commonly searched by product code (9675878080).
- Saves diagnostic time when module fault symptoms point to the BSM (intermittent lights, central locking faults, multiple blown fuses).
- Delivered as a tested, functional used unit — ideal for budget-conscious repairs where the original module has failed.
Technical Information
- Manufacturer: Delphi
- Model: Citroën Berlingo B9; Citroën C8; Peugeot 807; Peugeot Partner Tepee
- Product Codes: 9675878080
- Other Numbers: R03
Compatibility And Fitment
This BSM R03 is fitted to specific Citroën and Peugeot models listed above. The fastest way technicians and DIYers find the correct unit is by the product code (9675878080) or by model fitment. Confirm that the shape, connector layout and pin count match the original module before installing.
Replacement Procedure (Overview)
- Disconnect the negative battery terminal before starting work to avoid short circuits and protect electronic components.
- Locate the BSM (commonly found in the passenger compartment fuse box area or behind trim panels — location varies by model).
- Remove trim panels and any retaining screws or clips to access the module. Take care with fragile plastic fasteners.
- Release electrical connectors using the locking tabs, then unbolt and remove the old module.
- Compare the replacement unit visually (connector layout, fuse/relay positions). Fit the new module, secure it, reconnect connectors and reassemble trim.
- Reconnect the battery and verify all controlled functions (lighting, central locking, windows, wipers). If issues remain, inspect connectors and vehicle fuses before further diagnostics.
Installation Recommendations
- Always disconnect the battery before removal and follow manufacturer procedures to prevent damage to electronic units.
- Inspect connectors and wiring for corrosion or heat damage; clean contacts if necessary before installation.
- Secure mounting points even if original plastic clips are damaged — ensure the module cannot move or be stressed by vibration.
- After installation, perform a full functional check of related systems (lighting circuits, central locking, wipers, windows and any vehicle-specific functions controlled by the BSM).
Most Common Failure Causes
- Water ingress and corrosion of contacts due to fault seals or body leaks.
- Electrical surges or shorts (after jump-start attempts, faulty alternator or wiring faults) damaging internal electronics.
- Thermal stress from prolonged high current loads or poor ventilation leading to component degradation.
- Mechanical damage to connectors or housings — mounting clips can break, but this usually does not affect electrical function.
Why Choose This Unit
This BSM R03 Delphi unit is a practical replacement when the original module shows symptoms indicative of body control faults. For professional mechanics and experienced DIYers it offers a cost-effective alternative to a new OEM module while restoring full vehicle functionality when fitted correctly.
