Extra tools are required for installation. Replace and update your damaged seat occupancy sensor. Once an accident occurs, this simulator activates just like the original sensor, regardless of whether someone is seated. After installing the simulator, the SRS fault warning 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 19972016: 19972003: E31, E36, E38, E39, E46, E53, etc. 20032007: E60, E63, E65, E66, E87, E90, etc. 20072010: E60, E63, E64, E65, E70, E71, E81, E87, E90, E92, E93, etc. 20102016: X5, X6 Instructions: Step 1: Open the simulator top cover and adjust the switch. Step 2: Locate the seat occupancy sensor unit 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. Notes: 1. Please confirm compatibility with your vehicle before ordering. 2. Professional installation is highly recommended. 3. After installation, the simulator will send a seat occupancy signal to the OBC regardless of whether someone is seated. 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 above package content is included; other items are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 13 cm.