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 be to remove old errors and turn off the SRS/ warning. Unfortunately, the errors related to the safety systems are not removing automatically. Voltage: 12V Before purchase, please scan your car with a diagnostic tool to make sure your SRS/ 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: 3 x Emulator Only the above package content, other products are not included. Note: Light reflection 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.