[Designed for BMW Models with 20-Pin Interface] This adapter is specifically crafted for BMW vehicles that feature a 20-pin OBD1 port, allowing seamless connectivity with OBD2 diagnostic tools for efficient troubleshooting. [Compatible with Various BMW Series] This diagnostic adapter is versatile, working with a range of BMW models, including E28, E30, E32, E34, E36, E38, E39, E46, E52, E53, R50, R52, and R53, ensuring broad applicability for classic and modern vehicles. [Facilitates Comprehensive Diagnostic Functions] Utilize this adapter to perform multiple diagnostic tasks with your existing 16-pin OBD2 scanner, including reading error codes, resetting diagnostics, and conducting full system analyses for insightful vehicle performance assessments. [Important Consideration Before Use] Note that this product serves as a connection interface only; it does not perform diagnostics independently. The extent of functionality will depend on your OBD2 scanner and the vehicle’s compatibility with diagnostic protocols. [Compact and Efficient Design] Our adapter features a streamlined design that minimizes clutter by integrating wiring within the unit, ensuring reliability and durability. Crafted with high-grade materials, it promises stable transmissions and long-term use. 20 Pin OBD1 Male to 16 Pin OBD2 Female Connector for BMW