Description
BSM DELPHI R05-00 for Citroën and Peugeot vehicles. Unit tested and fully functional. The housing may have a cracked mounting tab which does not affect functionality.
Product overview
This Delphi BSM R05-00 is a replacement body/fuse/control module used on various Citroën and Peugeot models. It integrates fused power distribution, relays and control electronics for several engine bay and body circuits. Common search terms and part numbers: 9664706280, 9807028880, 6500HH, 6500FT, 6500KQ, R05-00.
Compatibility
Typical compatible models include Citroën Berlingo (B9), Citroën C4, Peugeot 308 and Peugeot Partner Tepee. Always check the listed product codes against the part number used on the vehicle when searching (9664706280 / 9807028880 / 6500HH / 6500FT / 6500KQ / R05-00).
Function and role
The BSM (Boîtier de Servitude Moteur) houses fuses and relays and contains control electronics that manage power distribution and certain body/engine-related functions. It provides protected power to circuits such as lights, fuel pump relay, ignition relays and sensors, and exchanges information with other vehicle control units. Failure or intermittent faults in the BSM can cause loss of several electrical functions at once.
Replacement procedure
General replacement steps for experienced mechanics or DIYers familiar with PSA vehicles:
- Isolate the vehicle electrically by disconnecting the negative battery terminal before any work.
- Locate and remove any engine bay covers or brackets that block access to the BSM.
- Release the multi-pin connectors carefully using the connector locks or release tabs; avoid pulling on wiring.
- Remove the mounting bolts securing the BSM and withdraw the unit from its housing.
- Install the replacement unit, secure with bolts and reconnect all connectors firmly.
- Reconnect the battery and perform functional checks: lights, starter, fuel pump and other affected circuits.
- If fault codes remain or some features are not restored, perform diagnostics and coding with PSA-compatible diagnostic equipment.
Installation recommendations
- Work in a dry, clean environment to avoid contamination of connectors.
- Inspect connector pins and wiring for corrosion or heat damage; clean or replace damaged terminals before fitting the new unit.
- Ensure the unit is mounted securely; a cracked or damaged mounting tab on the housing is cosmetic if the unit is fixed and connectors are intact.
- After installation, clear fault codes and run a full system check with diagnostic tool to confirm proper operation.
- When in doubt about coding or complex faults, use a technician with PSA diagnostic tools (DiagBox/Lexia/PP2000) for reliable commissioning.
Why this part most often fails
- Water ingress and corrosion in connectors leading to intermittent contacts or short circuits.
- Thermal cycling and vibration causing solder joint or relay wear inside the unit.
- Overloaded circuits or repeated short circuits that stress internal components.
- Physical damage to the housing or connectors from impacts or improper handling during previous repairs.
Technical information
- Manufacturer: Delphi
- Model: BSM R05-00
- Product codes: 9664706280, 9807028880, 6500HH, 6500FT, 6500KQ, R05-00
- Other numbers: R05, 9664706280/9807028880 (used as cross-reference)
Important notes for BSM units
Some BSM units are vehicle-specific and may require diagnostics and coding after replacement to remove stored faults and restore full functionality. If you are not familiar with PSA electrical commissioning procedures, have the unit inspected and configured by a professional workshop with appropriate diagnostic equipment.
