This BSI (Body System Interface) unit BSI04EV K04-00 is a genuine control module used on Stellantis vehicles such as Citroën and Peugeot. It centralizes comfort and body electronics functions—lighting, central locking, wipers, interior electrics and communication with other control units. The unit is commonly searched by product numbers (9664059080, 6580SS, 657062, 28120836-4, 28119248-3) and is suitable for Peugeot 407 applications equipped with the BSI04EV K04-00 specification. Designed for professional workshops and experienced DIYers, this module helps restore full body-electronics functionality when the original BSI fails.

Technical Information

• Manufacturer: Johnson Controls (used on Stellantis Citroën/Peugeot)
• Model: Peugeot 407
• Product Codes: BSI04EV, K04-00, 9664059080
• Additional Numbers: 01, 6580SS, 657062, 28120836-4 (BOOT), 28119248-3 (HARD)

Function And Typical Applications

The BSI is the central comfort and body electronics control unit. It manages lighting, interior and exterior switches, central locking, wipers, alarm and communication with other ECUs. On Peugeot 407 vehicles it acts as a gateway for multiple subsystems and coordinates inputs from switches and sensors to activate relays and outputs.

How The Unit Is Replaced

• Disconnect the negative battery terminal before any work to avoid short circuits or data corruption.
• Remove lower dashboard trim panels to access the BSI module—location varies by model year but is commonly behind the glovebox or under the dash on the passenger side.
• Unplug electrical connectors carefully, release retaining clips and remove mounting screws.
• Install the replacement BSI in reverse order, ensuring connectors and grounds are clean and fully seated.
• After mechanical installation, verify functionality and read fault codes with a diagnostic tool. Programming or synchronization of the immobilizer/keys may be required using manufacturer-level diagnostics (e.g., DiagBox/Lexia) to restore full vehicle communication.

Installation Recommendations

• Always Disconnect Battery And Observe ESD Precautions: Protect the module from static discharge and avoid handling circuit board contacts.
• Mark Connectors And Take Photos Before Removal: Helps ensure correct reconnection and reduces reassembly time.
• Check Fuses And Ground Points: Failures are often accompanied by blown fuses or poor grounds—inspect and rectify before fitting a new module.
• Use A Diagnostic Tool After Fitment: Clear fault codes, run actuator tests and, if needed, perform key/immobilizer synchronization or BSI coding with manufacturer-level software.
• Avoid Powering The Unit With Loose Connectors: Ensure all connectors are fully engaged before reconnecting the battery.

Why This Part Most Commonly Fails

• Moisture Ingress And Corrosion: Water leaks or condensation can corrode connector pins and PCB tracks.
• Electrical Surges And Poor Battery Connections: Voltage spikes or unstable power supply damage internal electronics.
• Connector Wear And Vibration: Repeated vibration or loose connectors cause intermittent faults or broken contacts.
• Age-Related Electronic Component Degradation: Over time relays, capacitors and solder joints can fail, especially in high-heat environments.

This BSI unit is ideal for mechanics and experienced DIYers who need an original-spec control module for Peugeot 407 vehicles using the BSI04EV K04-00 variant. Verify the product and additional numbers listed in the Technical Information to ensure correct fitment for your vehicle before installation.

Original BSI unit (Body Systems Interface) Johnson Controls BSI04EV K04-00 for Citroën and Peugeot cars. This is a used part dismantled from a Peugeot 3008 (year 2009). Code match is essential – this version matches the 9664059080 and 6580VV numbers used in PSAs to identify specific BSI hardware/software.

The BSI is a central comfort/body control unit that communicates via the CAN bus and controls, among other things, central locking, immobilizer, blinkers, wipers, lighting, electric windows, direction and comfort functions, sometimes also communication with the instrument panel. In the case of a BSI fault, apparently unrelated faults may occur (e.g. non-functioning remote control, lights turning on by themselves, wipers failing, impossibility to start due to the immobilizer).

This BSI04EV K04-00 variant is typically found in the Peugeot 3008 I and 5008 I and some related Citroën/Peugeot models from the PSA concern. Always compare the nameplate numbers of your original unit (especially 9664059080 and 6580VV) before ordering – matching part number and version is key for compatibility.

Installation and replacement: The BSI is located in the interior near the fuse box (usually on the left under the dashboard on the driver’s side). Before disassembly, disconnect the battery and wait until the network “sleeps” (prevention of voltage peaks). After physical installation, it is necessary to pair the unit with the car – transfer the configuration and immobilizer (cloning data from the original BSI) or completely configure via PSA diagnostics (Lexia/PP2000/Diagbox). Without proper immo programming, the car will not start.

Common causes of BSI failures include moisture/interior leaks, power surges with a weak or disconnected battery, and cold connections. We recommend that you check the condition of the electrical connectors and installation and pay attention to the correct procedure for disconnecting and connecting the battery.

Follow the numbers on the label to make the right choice: if your original unit is marked BSI04EV K04-00 and code 9664059080, or PSA numbers 6580VV/6580VW/6570A0, this unit is probably a suitable replacement candidate. Always check that the connectors and indexes match.

Technical information

• Manufacturer: Johnson Controls
• Model: BSI04EV K04-00 (BSI – Body Systems Interface)
• Product codes: 9664059080, 6580VV
• Other numbers: 6580VW, 6570A0, BSI04EV, K04-00, 02

Note: This is a used original PSA Citroën/Peugeot part. Expert assembly and correct coding are essential for full functionality in a particular car.

This comfort control module plays a crucial role in the vehicle’s electronic system, managing various body functions such as lighting, central locking, and other integrated system controls. Ensuring the proper functionality of this module guarantees enhanced control and comfort for your vehicle.

Technical Information:

• Manufacturer: Johnson Controls
• Model: Citroën C8, Peugeot 807
• Product Codes: 9664059080 01, 6580SA, 6580ZE
• Additional Numbers: BOOT 28120836-4, HARD 28119248-3 C

This used BSI module has been carefully removed from a Citroën C8 and is ready for reinstallation. Customers often search for this part using the listed product codes, making it easy to find the exact component needed for specific vehicle models.

Investing in a quality used part is a cost-effective solution and supports sustainability by extending the service life of original components. Whether you are a professional mechanic or a passionate DIYer, this BSI module delivers the reliability and functionality essential for your vehicle.

Purchase this essential auto part from us and enjoy not only a functional component but also the satisfaction of restoring your Citroën C8 or Peugeot 807 to full working condition. Don’t wait too long, as high-quality parts like this tend to sell out quickly!

You are in the right place to purchase used auto parts for Citroën and Peugeot! This specific product, the BSI unit (Body System Interface), is an essential control element for the proper functioning of your vehicle’s electrical and electronic systems.

The use of this particular unit is for the Citroën C5 X7 model, manufactured from 2009 onwards. It is a part that often requires replacement due to wear or damage, highlighting the importance of its proper functioning for overall comfort and safety of the vehicle. BSI units ensure that various electronic components of the car, such as lighting, central locking, or audio systems, communicate correctly and without faults.

Technical Information:

• Manufacturer: Johnson Controls
• Model: Citroën C5 X7
• Product Codes: 9664059080, 02, 6580SS, 6580SV, 657062

This unit is not only practical, but thanks to its compatibility with certain versions of the Citroën C5 X7, you can be assured that installation will proceed smoothly and without complications. A suitable mechanic or advanced amateur with experience in automotive electrical installations should perform the replacement.

By purchasing this auto part, you gain quality that supports the functionality and safety of your vehicle. Remember, even used parts can provide excellent service, especially when sourced from a reliable provider and thoroughly inspected.

This original BSI (Body Systems Interface) unit is designed specifically for the 2008 Citroën C4 Grand Picasso. Manufactured by Johnson Controls, this module with product code 9664059080 02 plays a crucial role in managing your vehicle’s electronic functions.

The BSI unit controls multiple systems such as lighting, vehicle security, energy management, and much more. It ensures smooth communication between various electronic subsystems, making it indispensable for proper vehicle operation. Over time, BSI units may degrade or fail due to electrical failures or moisture intrusion, causing issues like warning lights, malfunctions in central locking, or lighting errors.

Replacing the BSI unit is a straightforward process, typically completed within a few hours by professionals or experienced DIY mechanics. This unit includes all necessary connectors and functions to seamlessly integrate with your vehicle’s electronic network.

Choosing this genuine part guarantees excellent compatibility and performance, often at a more attractive price point compared to new units. Using an original component also supports a more sustainable repair approach by reducing waste.

Whether you are a professional auto mechanic or an enthusiastic car owner conducting self-repairs, this BSI unit is tailored to restore and enhance your Citroën C4 Grand Picasso’s functionality and reliability.

Technical Information

• Manufacturer: PSA Citroën Peugeot, Johnson Controls
• Model: Citroën C4 Grand Picasso, 2008
• Product Codes: BSI04EV K04-00, 9664059080 02, 1663370780, 657064
• Additional Numbers: BOOT 28120836-4, HARD 28119248-3B

Restore your vehicle’s electronic systems efficiently with this BSI module, ensuring safety, comfort, and smooth operations on the road.

The BSI04EV K04-00 unit by Johnson Controls is a vital automotive component designed specifically for Citroën and Peugeot vehicles, particularly the 2008 Citroën C4 Grand Picasso. This Body System Interface (BSI) unit manages essential electronic functions such as central locking, electric windows, and various comfort systems, ensuring smooth and secure operation of your vehicle’s electronic features.

As a critical part of your car’s electronic network, the BSI unit coordinates communication between different modules, helping to maintain the overall functionality and safety of your vehicle. Failure of the BSI unit can result in malfunctioning locks, window controls, and other electronic components, making timely replacement essential for maintaining comfort and security.

Installation and Maintenance

Replacing the BSI04EV K04-00 requires careful disconnection of the old unit from the vehicle’s wiring harness, followed by installation of the new unit and proper programming to ensure compatibility with your specific car model. It is recommended that installation be carried out by professional mechanics or experienced DIYers familiar with Citroën and Peugeot electrical systems. Regular diagnostic checks can help detect early signs of failure such as irregular locking operation or intermittent electrical faults.

Typically, BSI units may deteriorate over years due to moisture ingress or electrical surges, so ensuring adequate care and proper installation protects your vehicle from unexpected electronic failures.

Technical Information

• Manufacturer: Johnson Controls
• Model: Citroën C4 Grand Picasso (2008)
• Product Codes: 9664059080, 1663370780, 657064
• Additional Numbers: BOOT 28120836-4, HARD 28119248-3B

This BSI unit meets the required standards to ensure long-lasting reliability and perfect fitment, making it a smart investment for mechanics and car enthusiasts maintaining Citroën or Peugeot vehicles.

Why Choose This BSI Unit?

By choosing this BSI04EV K04-00 unit, you ensure the restoration of critical electronic systems in your Citroën C4 Grand Picasso. This enhances driving safety and convenience by reinstating reliable central locking and other comfort features. Don’t compromise on quality; select a proven part designed by Johnson Controls to keep your vehicle running smoothly and securely.

Frequent issues with the BSI module can arise from electrical faults, moisture exposure, or wear over time, leading to potential malfunctions in vehicle functionality. Therefore, regular diagnostics are recommended to ensure optimal performance and longevity of the module.

Installation of the BSI module involves accessing the vehicle’s central electronic unit, typically located under the dashboard. It is advisable to follow specific vehicle service manuals to ensure proper fitting and to avoid connectors damage.

Technical Information

• Manufacturer: Johnson Controls
• Model: BSI04EV K04-00
• Product Codes: 9678477180, 1613316380, 1663366080
• Additional Numbers: 28120836-4, 28119248-3C

Are you looking for high-quality replacement parts for your Citroën or Peugeot? Our BSI unit, model BSI04EV K04-00 from renowned manufacturer Johnson Controls, is exactly what you need for the correct operation of your vehicle’s electronic system. This part is known for its high reliability and has been thoroughly tested to meet your car’s specifications.

Technical Information

• Manufacturer: Johnson Controls
• Model: Citroën C4 PICASSO, Citroën C8, Peugeot 807
• Product Codes: 9666895680, 02, 1663370980, 657067, 657068
• Other Numbers: BOOT 2097777-1, HARD 212456701

This BSI unit model is known for enhancing the comfort and safety of your driving by coordinating various vehicle functions, such as lighting, door locking, and many more. Its importance in the vehicle’s electronic system is crucial, and the proper function of this unit is essential for the overall performance of the vehicle.

The need to replace this unit can arise due to general wear over time or due to technical damage. The replacement is relatively straightforward and can be performed independently by experienced DIY enthusiasts or professionally at a specialized service center. With proper installation and maintenance, this unit can serve effectively for a very long time.

Whether you are a professional mechanic or an enthusiastic DIYer, our BSI unit BSI04EV K04-00 for Citroën and Peugeot vehicles is the perfect choice for restoring the smooth operation of your car’s electronic systems. Don’t hesitate and include this key component in your parts inventory today to ensure the ongoing quality and safety of your driving experience.

Typically located inside the cabin, replacing the BSI unit requires careful disconnection of the vehicle’s battery and removal of the dashboard panels for access. Professional handling or experienced DIY work is recommended to avoid electronic faults. Over time, BSI units may fail due to internal electronic component wear or exposure to voltage spikes, leading to symptoms such as malfunctioning central locking, dashboard warning lights, or unresponsive switches.

Technical Information

• Manufacturer: Johnson Controls
• Model: BSI04EV K04-00
• Compatible Vehicles: Citroën C8 (2009) and select Peugeot models
• Product Codes: 9664059080, 6580ZE, 6580SA
• Additional Numbers: 28119248-3C, 28120836-4

Ensuring the correct part number compatibility is crucial before purchasing. This BSI module helps restore complete electronic comfort system functionality, supporting both professional auto mechanics and car enthusiasts who perform their own repairs.

The BSI (Built-in System Interface) is integral for the functionality of various electrical components within the vehicle, such as lighting, climate control, and security systems. It can often fail due to factors such as electrical shorts, water ingress, or general wear and tear, which necessitates replacement. Regular checks and timely replacement can help prevent electrical issues and maintain vehicle performance.

When replacing the BSI unit, it is essential to ensure that the new unit is compatible with the specific model of the vehicle, and professional installation is recommended to avoid complications during connection and configuration.

Technical Information

• Manufacturer: Johnson Controls
• Model: BSI04EV K04-00
• Product Codes: 9664059080
• Additional Numbers: 1663370680, 657062, 657063, 28119248-3C, 28120836-4