for (MB) Type6, support for W220, W163, W210, W168, W639 and even more 2000-2005 year models The seat occupancy mat is a sensor mounted in the front passenger seat. The emulator simulates a situation of a person sitting in the passenger seat with a seat belt fastened. To make the emulator work you need a diagnostic tool (like , etc.) to remove old errors of a broken seat mat that are stored in the control unit. Once you connect the emulator your diagnostic tool will be to remove old errors and turn off the SRS or warning. Unfortunately, the errors related to the systems are not removing automatically. Voltage: 12V Before purchase, please scan your car with a diagnostic tool to make sure your SRS or warning is caused by a defective seat mat. If your car is W168 unit, the Type 6 Emulator could not support! Not support for W203 Colour:black Material:plastic Package Contents: 1 x Emulator Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.