Overview

This BSM (Body System Module) R02-00 is a direct-fit electrical control unit used on various Citroën and Peugeot models. The module manages numerous body and convenience functions such as central locking, interior lighting, power windows, exterior lights, wipers and some vehicle comfort features. Commonly referenced by part numbers 9666700180 and 9807028580, it is regularly searched for by technicians and DIYers by these codes.

Compatibility

Typical vehicle applications (please verify year/variant against your vehicle): Peugeot 5008 I, Peugeot 407, Citroën C4 Picasso, Citroën C5 X7. Also commonly cross-referenced with codes 6500FQ and 6500HK. Always check the physical connector layout and part numbering when replacing.

Installation Recommendations

Disconnect the vehicle battery before starting work and follow manufacturer procedures to avoid electrical damage. Locate the BSM (position varies by model — commonly in the engine bay or inside a fuse/relay box behind the dash). Remove any retaining clips or screws, carefully unplug wiring connectors using lock release tabs, and transfer any necessary mounting brackets or grommets. Reconnect connectors firmly and restore battery power only after the unit is securely installed. After installation, verify all controlled functions (lights, central locking, windows, wipers, interior lights) to confirm correct operation.

Technical Information

• Manufacturer: Delphi / Siemens (designation may vary by unit)
• Model: BSM R02-00
• Product Codes: 9666700180, 9807028580
• Additional Numbers: 6500FQ, 6500HK, R02-00

Most Common Failure Reasons

BSM units typically fail due to moisture ingress and corrosion of connectors or internal circuits, thermal stress from engine-bay heat cycles, electrical surges (short circuits or poor battery connections) and internal component aging. Physical damage to mounting tabs or housing does not necessarily affect electrical function — as noted, a cracked housing mount can be cosmetic only. Regular inspection of seals, connector pins and fuse box condition helps prevent failures.

Notes

This unit is offered as a fully functional used BSM. Inspect connector pins and housing condition before installation. Replacement often restores multiple body functions at once and is a common repair for intermittent or complete loss of convenience systems.

This BSM (Body Service Module) R02-00 is a direct-fit electronic control module commonly used in a range of Stellantis Citroën and Peugeot models. Supplied with original part references and cross-numbers, the unit controls and distributes power to multiple body electrical circuits and integrates with the vehicle CAN network. Ideal for professional workshops and DIY mechanics looking to replace a faulty BSM quickly and reliably. Compatible product codes and OE numbers are included below to help locate the correct replacement.

Technical Information

• Manufacturer: Delphi (reported), Siemens (reported)
• Model: BSM R02-00
• Product Codes: R02-00
• Other Numbers: 9664705980, 9807028580, 6500FQ, 6500HK

Compatibility

Commonly fitted to vehicles including (but not limited to): Peugeot 407, Peugeot 5008 I, Citroën C4 Picasso, Citroën C5 X7. Always match the module part number and connector layout to the original unit before installation.

Function And Role

The BSM acts as a central body electrical module that powers and manages multiple vehicle functions such as lighting circuits, wiper control, central locking, window and mirror functions and power distribution to auxiliary relays depending on vehicle equipment. It communicates with other on-board modules via the vehicle CAN bus and contains fuse/relay interfaces and the control electronics that handle switching and diagnostic feedback.

Installation Recommendation

• Disconnect the negative battery terminal before starting work to avoid short circuits and protect electronic modules.
• Remove necessary trim and access panels to reach the BSM housing; keep screws and clips organized.
• Carefully release electrical connectors using manufacturer-recommended tools; inspect connector pins for corrosion or damage.
• Fit the replacement unit into the original mounting position and secure fasteners. Repair or replace any broken mounting tabs if required to ensure a stable installation.
• Reconnect connectors and the battery, then perform basic function checks (lights, wipers, central locking, etc.). Some vehicles may require additional configuration or clearing of fault codes with diagnostic equipment.
• Follow the vehicle manufacturer’s procedures during removal and installation to avoid damage to the module and wiring.

Most Common Failure Reasons

• Moisture Ingress And Corrosion: Water entry into the housing or corroded connector pins can interrupt signals and power paths.
• Electrical Overload Or Short Circuits: Faulty wiring, aftermarket accessories, or power surges can damage internal electronics.
• Thermal Stress And Ageing: Repeated heat cycles and long service life may lead to component degradation.
• Mechanical Damage: Impact, vibration or broken mounting points (housing tabs) can cause poor grounding or connector strain—note: cosmetic cracks in a mounting tab do not necessarily affect module operation.

Notes On Condition

The unit may show a cracked mounting tab on the housing as noted; this cosmetic damage does not affect the electronic function of the module. The module is reported fully functional. Inspect connector integrity and surrounding wiring before installation to ensure reliable operation after fitting.

The BSM R02 DELPHI control unit is a fully functional electrical management module designed specifically for Citroën and Peugeot vehicles, notably the Peugeot 407. This unit is integral for controlling multiple vehicle electrical circuits, including lighting, engine regulation, and other core functions vital for optimal car performance.

Although it may exhibit minor cosmetic issues such as cracked mounting brackets on the casing, these do not affect the unit’s performance or reliability. Its robust design ensures continuous operation, making it an essential part for maintaining vehicle safety and functionality.

Technical Information

• Manufacturer: DELPHI
• Models: Citroën, Peugeot 407
• Product Codes: 9661281580, 6500FQ, 6500HK
• Additional Codes: Not available

Installation and Maintenance

This control unit is relatively easy to replace for professional mechanics or skilled DIY car enthusiasts. It typically mounts within the vehicle’s electrical fuse box or central electronic unit. Replacement frequency depends on vehicle usage and environmental conditions, with failure commonly caused by electrical surges or moisture ingress.

Installing a reliable BSM module ensures proper control of your vehicle’s essential electrical systems, preventing malfunctions in lighting and engine operation. Always verify compatibility with your specific vehicle model and product code prior to installation.

Why Choose This Unit?

Our offered BSM R02 DELPHI control unit provides an excellent balance between cost and quality, making it a practical choice for vehicle repairs or upgrades. It guarantees that your Citroën or Peugeot continues to operate safely and efficiently, extending the lifespan of your car’s electrical systems.

Add this proven BSM unit to your cart today and maintain your vehicle’s peak performance with confidence.

The Delphi BSM (Boîtier de Servitude Moteur) R02 is an essential body/fuse module used on a range of Citroën and Peugeot models. This unit integrates fuses, relays and distribution circuits for engine and body electrical systems, making it a common replacement part in collision repairs and electrical troubleshooting. Common search terms and part numbers: BSM R02, Delphi BSM, 9667044980, 6500FQ, 6500HK — useful for fast lookup in parts catalogs or e-commerce searches. Ideal for professional workshops and competent DIY mechanics who service PSA group vehicles.

Technical Information

• Manufacturer: Delphi
• Model: BSM R02-00
• Product Codes: 9667044980, 6500FQ, 6500HK
• Additional Numbers: R02-00, R05-00

Compatible Models

Typically fitted to various PSA group vehicles. Frequently used in: Citroën C4 Picasso, Peugeot 3008 (I), Peugeot 5008 (I). Always check the part numbers against the vehicle’s equipment level and production variant when selecting the part.

Function And Typical Faults

The BSM houses vehicle fuses and relays and serves as a central distribution point for engine management, lighting, wipers, and other body electrical circuits. Failures usually present as intermittent or permanent loss of one or more electrical functions, blown internal fuses, relay faults, or poor connections causing voltage drops. Mechanical damage (e.g., cracks in the housing) normally does not affect electrical performance, but water ingress, corrosion of contacts, vibration and thermal stress are the most common root causes of failure.

How Replacement Is Performed

1) Diagnose the fault clearly to confirm the BSM is the source (measure voltages, check fuses/relays and connectors). 2) Disconnect the negative battery terminal before any work. 3) Locate and remove trim or covers to access the BSM (typically positioned in the engine bay or near the wheelarch depending on model). 4) Carefully release electrical connectors and remove fixing fasteners. 5) Transfer any required fuses/relays or plugs to the replacement unit if applicable. 6) Fit the replacement BSM, secure fasteners and reconnect connectors. 7) Reconnect the battery and verify all circuits and functions. Use diagnostic tools to confirm system status and clear any fault codes.

Installation Recommendations

• Always Disconnect The Battery Before Starting Work To Avoid Short Circuits Or Damage.
• Inspect Connectors For Corrosion Or Bent Pins; Clean And Repair As Necessary Before Reinstallation.
• If The Housing Has A Cracked Mounting Tab, Secure The Unit Properly To Prevent Vibration; The Crack Does Not Normally Affect Electrical Function.
• Use Dielectric Grease On Electrical Contacts Where Appropriate To Reduce Corrosion Risk.
• After Installation, Carry Out A Full Functional Check And Read Fault Memory With A Compatible Diagnostic Tool.

Why This Part Most Often Fails

• Water Ingress And Moisture Leading To Corroded Contacts.
• Thermal Cycling And Overheating From High Current Loads.
• Mechanical Damage From Impacts Or Vibration; Broken Mounting Points.
• Poor Electrical Connections Causing Heat And Contact Degradation.
• Age-Related Wear Of Internal Relays Or Fuse Holders.

This Delphi BSM R02-00 offers a practical solution for restoring reliable electrical distribution on compatible Citroën and Peugeot vehicles. Supplied in ready-to-fit condition; ideal for garages and experienced DIY technicians seeking a direct replacement using the referenced part numbers.

High-quality used BSM R02 by Delphi, ideal for professional workshops and DIY mechanics seeking a reliable replacement body control module for compatible Citroën and Peugeot models. This unit controls multiple vehicle body electrical functions, including relays and fuse circuits, and is commonly searched by product codes (9675877980, 9807028580, 6500FQ). The module is suitable for technicians who want a straightforward swap with practical installation guidance and a clear understanding of typical failure causes.

Technical Information

• Manufacturer: Delphi
• Model: BSM R02
• Product Codes: 9675877980, 9807028580, 6500FQ
• Other Numbers: 6500.FQ, 6500FQ

Fitment

Commonly fitted to Citroën C4 Picasso and Peugeot 5008 (first generation) platforms using the 6500FQ/9675877980/9807028580 part numbering. Always verify physical appearance and connector layout against the unit being replaced.

Function

The BSM (Body System Module) R02 centralizes several body electrical functions: distribution of fused power to circuits, control of relays for lights and accessories, management of convenience circuits (wipers, central locking, etc.) and diagnostic communication with vehicle networks. Failure of the BSM can cause loss of multiple body functions or intermittent electrical faults.

How To Replace

• Disconnect the negative battery terminal before any work to prevent short circuits and risk to the module.
• Locate the BSM (typically in a fuse/relay box area; exact position depends on model and model year) and remove surrounding trim or protection panels to access the unit.
• Carefully release connectors and locking tabs. Inspect connector pins and sockets for corrosion or damage.
• Remove mounting fasteners and lift out the module. Note the orientation and routing of wiring for correct reinstallation.
• Fit the replacement unit, secure fastenings, reconnect all connectors and restore any removed trim panels.
• Reconnect the battery and perform a basic function check (lighting, wipers, central locking, instrument warnings). If fault codes persist, further diagnostics with workshop equipment may be required.

Installation Recommendations

• Always disconnect the battery before removal and installation to avoid damage to the module and vehicle electrical system.
• Handle the unit by the housing; avoid touching connector pins and electronic components. Use anti-static precautions where possible.
• Inspect and clean connector terminals and earth points. Replace damaged connectors or corroded terminals before fitting the new module.
• Ensure the module is securely mounted. A cracked mounting bracket on the housing may not affect function, but secure fastening reduces risk of vibration-related connector issues.
• After installation, check related fuses and perform a full function test of body systems. If intermittent faults or persistent error codes occur, professional diagnostic equipment is recommended.

Most Common Failure Causes

• Water Ingress And Corrosion: Moisture penetration into connectors or the housing leads to short circuits and degraded contacts.
• Electrical Surges And Poor Earthing: Voltage spikes or weak ground connections can damage internal electronics or relays.
• Thermal Cycling And Ageing: Repeated heating and cooling stresses solder joints and electronic components over time.
• Mechanical Damage: Impact or vibration can break mounting tabs or damage connectors (the unit may show a cracked mounting bracket that does not affect function).
• Connector Problems: Loose or corroded pins create intermittent faults that are often mistaken for module failure.

This BSM R02 Delphi unit is a practical replacement option for professionals and experienced DIYers. It provides a cost-effective way to restore body electrical functions when matched to the correct product codes and fitted according to recommended procedures.