Description
Engine Unit BSM B2 Delphi. This is a used part with a functional warranty. Some mounting brackets may be damaged – this does not affect functionality.
Product Overview
BSM B2 by Delphi is a genuine motor unit used on Stellantis vehicles under Citroën and Peugeot brands. This unit is commonly fitted on earlier Peugeot models such as the 206 and 307 and handles critical engine-related electrical distribution and control interfaces. Supplied as a used component in verified working condition, it is a practical choice for workshops and DIY mechanics seeking an OEM-number-matched replacement at a lower cost than a new unit.
Technical Information
- Manufacturer: Delphi
- Model: BSM B2
- Product Codes: 9646405180, 6500Y1
- Other Numbers: 6500 Y1 (alternative format)
Compatibility
Fits Stellantis Citroën/Peugeot applications. Known compatible models include Peugeot 206 and Peugeot 307. Always check the part number on the original unit to confirm match with your vehicle.
Installation Recommendations
- Always disconnect the vehicle battery before starting work to avoid short circuits and protect vehicle electronics.
- Remove any engine covers or protective panels to access the BSM. Unplug all electrical connectors carefully, releasing locking tabs to avoid damaging terminals.
- Unbolt the unit from its mounting points, noting the position and orientation for reinstallation. Replace with the supplied unit, secure all fasteners and reconnect connectors firmly.
- After installation, verify fuses and relays associated with the unit, and check that all engine functions controlled via the BSM operate correctly (starter, sensors, fuel system interfaces, immobilizer indications).
- If the vehicle shows immobilizer or communication faults after replacement, adaptation or configuration with appropriate diagnostic equipment may be required.
Most Common Failure Causes
- Water ingress and moisture-related corrosion of PCB contacts and connector pins.
- Electrical surges or poor battery/alternator quality causing component failure inside the unit.
- Mechanical damage to connectors or mounting brackets due to improper handling or previous repairs; bracket damage does not necessarily affect function but should be secured during installation.
- Long-term heat cycling and vibration which can degrade solder joints and electronic components.
Why Choose This Unit
This used Delphi BSM B2 offers an economical OEM-number-matched replacement with a functional warranty, suitable for professional garages and competent DIYers. The part is especially valuable when original part numbers match, allowing a direct swap with minimal diagnosis time. Shipping is typically fast and the unit is ready for installation after proper handling and vehicle checks.
