BSM R07 Valeo with PSA 9667199580 / 6500HV / 6500HW is a fuse and relay box in the engine compartment that provides power and control of a whole range of electrical circuits in Citroën and Peugeot cars. This part is suitable for professional auto mechanics and DIYers who need a quick and functional replacement for a defective BSM unit, often searched by product number.

The unit is fully functional, but some of the plastic holders may be damaged. This damage does not affect the electronic function or the part’s ability to fulfill its role in the vehicle’s electrical system, but it must be taken into account during assembly (more careful handling and correct attachment).

Technical information:
Manufacturer: Valeo / PSA
Model: BSM R07
Product codes: 9667199580, 6500HV, 6500HW
Other numbers: there may also be sub-indexes or variants depending on the specific equipment of the car (e.g. different levels of BSM for different electrical equipment – air conditioning, heating, etc.).

The unit is mainly used in selected Peugeot and Citroën models; frequent applications include, for example, the Peugeot 207 and related cars on the same platform. When replacing, it is important to compare the numbers on the original unit label with the numbers above to match the BSM R07 variant with compatible coding.

Installation recommendations:
– Before removing the old unit, always disconnect the negative terminal of the battery and wait a few minutes to discharge the residual charges in the system.
– Carefully check all connectors – damaged pins, corrosion or residual moisture must be removed or the connector must be repaired.
– Before fitting a new unit, check the seating in the holders; if the plastic mounts are damaged, work with the part carefully and make sure that the BSM is firmly and stably mounted to avoid vibration and strain on the joints.
– Insert the connectors as far as they will go, without force, but with a clearly perceptible click of the fuses. An improperly inserted connector can lead to occasional malfunctions, starting problems, or electrical circuit failures.
– After assembly, reconnect the battery, visually check all fuses and relays in the unit before starting for the first time. Watch for any warning lights and make sure all major appliances (lights, fan, wipers, fuel pump, starter) are working.

Correctly selected and installed BSM R07 Valeo with numbers 9667199580 / 6500HV / 6500HW will reliably restore the functionality of the electrical system of the engine compartment and ensure long-term and stable operation of the vehicle.

The BSM R08 Delphi is a compact engine-bay power distribution and control unit designed for a range of PSA Group vehicles. Typical searches use part numbers such as 9667199680 or designation 6500HV, so this listing is optimized for mechanics and DIY enthusiasts looking for a reliable replacement BSM for Citroën and Peugeot models. The unit consolidates fuses, relays and connectors in the engine compartment and simplifies wiring, helping to manage multiple electrical circuits. Supplied used but guaranteed functional; cosmetic damage to brackets does not affect electrical performance.

Technical Information

• Manufacturer: Delphi
• Model: BSM R08
• Product Codes: 9667199680, 6500HV
• Other Numbers: BSM R08

Compatibility / Applications

Commonly fitted to various Citroën and Peugeot models, including but not limited to:

• Citroën C3
• Citroën C3 II
• Citroën C3 Picasso
• DS3
• Peugeot 1007
• Peugeot 207

Function

The BSM (Boîtier de Servitude Moteur) acts as an engine-bay fuse and relay box that centralizes power distribution for a number of engine and body electrical circuits. It contains fuse holders, relay positions and multi-pin connectors that link to sensors, actuators and vehicle wiring harnesses. In PSA vehicles the unit is a key element of the vehicle’s electrical architecture and ensures safe distribution of battery power to critical systems.

Replacement Procedure

Basic replacement steps for a professional or experienced DIY mechanic:

• Disconnect The Battery: Always isolate the negative terminal before working on the BSM to avoid short circuits and protect electronic components.
• Access The Unit: Remove any engine-bay covers or brackets to reach the BSM. Keep fasteners and clips organized.
• Label And Unplug Connectors: Note connector positions or take photos. Carefully release locking tabs and unplug each harness.
• Unbolt The BSM: Remove mounting screws or bolts and lift the unit clear. Inspect the mounting area for corrosion or debris.
• Fit The Replacement: Position the new unit, secure bolts to manufacturer torque where available, reconnect harnesses firmly and reassemble covers.
• Test Functions: Reconnect the battery, verify fuses and check operation of affected circuits (lighting, starting, charging indications, etc.). Conduct a road test to confirm full functionality.

Installation Recommendations

• Use Appropriate Tools: Use the correct torques and insulated tools when working near battery connections.
• Check Connector Integrity: Inspect connector pins for corrosion or bent contacts and clean if necessary before reconnecting.
• Secure Mounting Brackets: Even if a bracket shows cosmetic damage, ensure the unit is firmly mounted to avoid vibration-induced failures.
• Professional Assistance: For complex electrical faults or if additional modules show faults after replacement, consult a professional with PSA diagnostic equipment.
• Observe Safety: Always disconnect the battery before removal and follow vehicle manufacturer procedures to avoid damage to the unit or vehicle electronics.

Why The Part Most Often Fails

Common failure causes for BSM units include:

• Water Ingress And Corrosion: Moisture entering the unit or connectors causes corrosion of pins and degraded electrical contact.
• Thermal Stress And Aging: Heat cycling in the engine bay can age plastics, solder joints and internal components.
• Vibration And Mechanical Damage: Loose mounting or repeated vibration can weaken connections and cause intermittent faults.
• Electrical Overload Or Short Circuits: Blown internal fuses or damaged relays due to downstream shorts or high current events.

Additional Notes

This Unit Is Supplied Used With A Functionality Guarantee. Cosmetic Damage To Brackets May Be Present And Does Not Affect Electrical Operation. Replacement BSMs Should Be Fitted Carefully To Ensure Reliable Long-Term Operation.

High-quality used BSM R09 by Delphi, suitable for a range of PSA small cars. This unit is a direct replacement for original BSM modules (part numbers 9667199780 / 6500HV / 6500HW) fitted on Citroën and Peugeot models. It is ideal for professional mechanics and experienced DIYers who need a reliable, cost-effective replacement module to restore central electrics, power distribution and body-related functions. Supplied with a functional guarantee; mounting bracket cosmetic damage may be present but does not impair operation.

Features

– Replacement BSM R09 module by Delphi designed for Citroën and Peugeot vehicles.
– Matches OEM part numbers 9667199780, 6500HV, 6500HW.
– Controls multiple body electrical functions and power distribution circuits (see fitment notes).
– Supplied as a used unit with confirmed functionality.

Technical Information

• Manufacturer: Delphi
• Model: Citroën C3; Citroën C3 II; DS3; Peugeot 207
• Product Codes: 9667199780; 6500HV; 6500HW
• Additional Numbers: BSM R09

Fitment And Compatibility

Commonly fitted to Citroën C3, Citroën C3 II, DS3 and Peugeot 207 platforms where the BSM R09 unit is specified. The module corresponds to the listed product codes; check physical appearance and connector layout when replacing to ensure correct fitment.

How To Replace

Typical replacement steps for experienced technicians or skilled DIYers:

• Disconnect the negative battery terminal and wait a few minutes before starting work.
• Locate the BSM module (commonly installed in the fusebox area/engine bay or behind protective covers depending on model).
• Remove covers or trim panels to access the unit, carefully note connector positions and any retained fuses/relays.
• Unclip electrical connectors and unbolt the BSM from its mount. Be careful with connector locking tabs to avoid damage.
• Fit the replacement unit, secure bolts and connectors, transfer any fuses or relays if necessary, and reinstall covers.
• Reconnect the battery and verify vehicle functions (central locking, indicators, interior lights, wipers, etc.).

Installation Recommendations

– Always disconnect the battery before removal and follow manufacturer procedures to avoid damage to the unit or vehicle electronics.
– Handle connectors by the housings and avoid pulling on wires. Inspect connector pins for corrosion and clean if required.
– Replace any visibly corroded fuses, relays or wiring terminals when installing the unit.
– Ensure the module is mounted securely; replace broken mounting brackets if you require original fitment appearance even though minor bracket damage does not affect electrical function.
– If any irregular electrical behavior persists after installation, use a professional diagnostic tool to read fault codes and perform necessary programming or adaptations.

Why This Part Most Often Fails

Common causes of BSM failures include water ingress and corrosion, thermal stress from engine bay heat cycling, poor or corroded connector contacts, and damage from road debris or improper handling. Over time, contact oxidation and internal component aging can produce intermittent faults affecting central locking, lighting circuits or other body functions. Mechanical damage to mounting brackets is cosmetic in many cases and does not typically impair electrical operation, but connector or circuit damage resulting from impacts can cause functional failures.

Sold as a used unit with a guarantee of functionality. Please follow proper safety and installation procedures when replacing vehicle electronic modules.

Overview

BSM R07 (Valeo) — a central engine-bay fuse/relay module used on a range of Citroën and Peugeot vehicles. Supplied with original part numbers 9664997780, 6500HV and 6500HW, this unit distributes power to engine and body circuits, protects circuits with fuses and relays, and ensures reliable switching of key electrical consumers. Ideal for professional workshops and experienced DIY mechanics looking for a direct replacement part for PSA small-car applications, commonly found on models such as the Peugeot 207 and similar Citroën/Peugeot platforms.

Technical Information

• Manufacturer: Valeo
• Model: BSM R07
• Product Codes: 9664997780, 6500HV, 6500HW
• Other Numbers: BSM R07 (Valeo)

Function

The BSM (engine fuse and relay box) organizes and protects electrical circuits in the engine bay. It houses fuses, relays and connectors that feed ignition, fuel system, cooling fan, lighting and other essential systems. The module provides central distribution of battery power and switching points for multiple subsystems, helping to maintain vehicle electrical integrity.

Common Faults And Causes

Failures typically result from moisture ingress, corrosion of terminals or connector pins, thermal stress from high current loads, damaged relays or burnt traces, and mechanical vibration. Symptoms include intermittent loss of power to affected circuits, blown fuses that recur after replacement, starting or charging issues, and malfunctioning electrical accessories.

Replacement And Installation

General replacement steps (for experienced mechanics):

• Disconnect the vehicle battery before any work to avoid short circuits and protect electronic modules.
• Locate the BSM in the engine bay (usually near the battery or inner wing) and remove any covers or protective panels.
• Carefully unplug all electrical connectors, noting locking tabs and connector orientation. Release retaining clips and remove mounting bolts.
• Replace with the new unit, securing mounting points and reconnecting all connectors firmly. Ensure seals and grommets are intact to prevent water ingress.
• Reconnect the battery and verify the operation of circuits and relays. Clear fault codes with diagnostic equipment if required.

Recommended tools: basic hand tools, dielectric grease for terminals, multimeter and a diagnostic scanner to read/clear faults after installation.

Recommended By Installer

Fit by a qualified technician if possible. When installing yourself, handle connectors gently, check pins for corrosion, replace any damaged fuses or relays, and secure the module to prevent vibration. Protect sealing surfaces to avoid future water damage.

Why This Part Fails Most Often

Environmental exposure is the most common cause—water and road salts cause corrosion at connectors and inside the unit. Overheating and repeated high-current loads can damage internal relays or tracks. Poor sealing after previous repairs or damaged cable looms can accelerate failure.

Notes For Professionals And DIY Mechanics

Always inspect wiring harnesses and relay/fuse condition when replacing the BSM. Preserve connector integrity and use contact protection where appropriate. After installation, verify all affected circuits and clear diagnostic trouble codes with appropriate tools.