Description
SIEMENS BSI E02-00 MG Fits the models Citroën Xsara Picasso, Berlingo II, Peugeot 206, Partner II.
This Siemens BSI (Body System Interface) E02-00 is a direct-fit comfort/electrics control unit designed for a range of Citroën and Peugeot vehicles. Ideal for professional workshops and experienced DIY mechanics, the module controls functions such as central locking, interior lighting, windshield wipers, power windows, alarm and certain comfort features. The unit is commonly referenced by multiple OEM numbers (see Technical Information) and is frequently sought after by its part codes—entering these numbers in searches raises the chance of quick identification and purchase.
Installed correctly, this BSI restores reliable central electronics behaviour: eliminates intermittent dashboard warning lights, restores remote locking/unlocking, and fixes random failures of convenience systems. The product suits technicians who need a ready-to-fit unit that matches the electrical and mechanical connectors of the listed models. Typical symptoms that indicate a failing BSI include erratic instrument cluster behaviour, loss of remote central locking, malfunctioning electric windows, immobiliser or key recognition faults, and unexpected fuse blows.
Technical Information
- Manufacturer: Siemens
- Model: Citroën Xsara Picasso; Citroën Berlingo II; Peugeot 206; Peugeot Partner II
- Product Codes: 9657999780; S118085220; E02-00
- Other Numbers: 6580FF; 6580YZ; 1650883280; 1650882580; 6580EZ; 1612812380
Fitment And Replacement Procedure
Basic replacement steps for a qualified mechanic or competent DIY’er:
- Disconnect the negative battery terminal and wait a few minutes to ensure the vehicle electrics are discharged.
- Gain access to the BSI unit—typically located behind the dashboard or under the glovebox depending on model.
- Remove trim panels and unscrew the unit retaining bolts. Carefully unplug all multi-pin connectors, noting their positions.
- Install the replacement BSI, secure bolts, reconnect connectors and reassemble trim panels.
- Coding or cloning is required (see Mounting And Coding – Important). Do not reconnect the battery until ready to perform the required programming steps.
Mounting And Coding – Important
- The Unit Is Used And Is “Paired” With The Original Vehicle (VIN/PIN/Keys).
- Activation Options:
- Cloning Data From The Old Unit (EEPROM/Flash) – After Cloning The Unit Is Plug And Play.
- Virginization And Subsequent Initialization/Telecoding Via DiagBox (Or Online) + Key Adaptation.
- Recommended To Be Performed By A Specialist With PSA Service Equipment (DiagBox/Lexia/PP2000).
- Before Removal/Installation Always Disconnect The Battery And Follow Manufacturer Procedures To Avoid Damage To The Unit.
Installation Recommendations
Always follow OEM procedures and safety precautions. Use dielectric grease on connector pins if appropriate, inspect connector locks and wiring for corrosion or damage, and replace any brittle wiring or broken clips during installation. Keep the unit and connectors dry; water ingress is a common cause of failure. If cloning, ensure a verified backup of EEPROM/Flash is made. If telecoding, ensure a stable connection and correct software version for the vehicle.
Why This Part Usually Fails
- Water Ingress And Corrosion: Moisture reaching connectors or the unit casing causes short circuits and corrosion of electrical contacts.
- Electrical Surges Or Poor Battery Connections: Voltage spikes or unstable charging systems can damage internal electronics.
- Thermal Stress And Ageing: Over years, solder joints and electronic components can crack or degrade, producing intermittent faults.
- Connector Wear And Mechanical Damage: Repeated connector cycling or improper handling during repairs can break pins or sockets.
Suitable For professional vehicle electrics technicians and competent DIY mechanics who understand the coding requirements for PSA systems. The listed product and reference numbers will help you find the correct unit for the vehicle. Replace and code the BSI correctly to restore full vehicle comfort and security functions.
