Extra tools are required for installation. Replace and update your seat occupancy sensor. Once an accident occurs, this simulator activates like the sensor, regardless of whether someone is seated. After installing the simulator, the SRS fault warning light on the dashboard can be cleared (a diagnostic computer is required for the first-time reset). Name: Car Seat Occupancy Mat Sensor SRS Bypass Emulator Fitment Type: Direct Replacement Installation Fitment: This sensor is compatible with the following European models (including all variants: convertible, coupe, estate, hatchback, M-Power, saloon): For models 1997–2016; 1997–2003: E31, E36, E38, E39, E46, E53, etc.; 2003–2007: E60, E63, E65, E66, E87, E90, etc.; 2007–2010: E60, E63, E64, E65, E70, E71, E81, E87, E90, E92, E93, etc.; 2010–2016: X6, X5 Instructions: Step 1: Open the simulator top cover and adjust the switch. Step 2: Locate the seat occupancy sensor under the front passenger seat, cut the wire, and reconnect it to the simulator. Step 3: Fasten the seat belt on the front passenger seat, then use a diagnostic computer (NOT INCLUDED) to clear the SRS warning code for the first time. Note: 1. Please confirm compatibility with your vehicle before ordering. 2. Professional installation is highly recommended. 3. After installation, the simulator sends a continuous seat occupancy signal to the OBC, regardless of passenger presence. Installation guide not included; professional installation is strongly advised. Color: As Shown Material: Plastic Package Contents: 1 x Car Seat Occupancy Bypass Emulator MAT Sensor Only the items listed above are included; other accessories are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1–3 cm.