- Target users and remote support guidance This product is best suited for users with a basic level of car and computer knowledge and who are comfortable with remote assistance. TeamViewer is provided as a remote support tool to help you use the diagnostic functions. For remote help you may need to temporarily disable firewall and antivirus to ensure the software runs correctly. If you prefer not to use remote support, this product may not be the right fit. If you need remote help, download TeamViewer version 15. - Diagnostic coverage and software compatibility Supports diagnostic access for BMW E serials from 1998 through 2022. It works with INPA, Progman, ISTA-D, SSS, and related tools, delivering all functions available on the Omitec Interface. Read and erase fault codes are supported. If you are unsure about your car models, please email your car VIN before placing an order. - System requirements and model limitations Compatible with Windows 7, 8, and 10, 32-bit or 64-bit. This version does not support E46, E39, or E53. If you need support for E39 or E46, we offer another unit with a switch that can work with those models (ASIN: B07CYS77R3). E53 support is available only for engine module. - Hardware quality and authenticity 100% original brand-new FTDI 232RL, MCP2551, 9241A, MCP2515, ATMEGA162-16AU, ATF16V8B-15SU chips. Many suppliers use counterfeit FTDI or other ICs, which can cause functions to fail. This product uses authentic components to ensure reliability. - Additional guidance on use If you are unsure about your car model and compatibility, contact us with your VIN to confirm before ordering. - Use scenarios 1) A shop or enthusiast diagnosing a BMW from 1998 to 2022, reading and erasing codes across multiple modules using INPA, ISTA-D, and related software. 2) A user performing fault code reading and engine/module diagnostics on BMW E serials within the supported range, with remote assistance available if needed. 3) An installer who needs a reliable interface with Windows 7/8/10 systems for broad BMW diagnostics, while being aware of model-specific limitations and the option to choose the alternative ASIN for E39/E46 support. - Quick references For users requiring E39/E46 support, search ASIN B07CYS77R3 on Amazon. For guidance on remote assistance, use TeamViewer 15 as the recommended version.