for Mercedes- (MB) Type6, support for W220, W163, W210, W168, W639 and even more 2000-2005 year modelsThe occupancy mat is a sensor mounted in the front passenger .The emulator simulates a situation of a person sitting in the passenger with a belt fastened.to make the emulator work you need a diagnostic tool (like , etc.) to remove old errors of a broken mat that are stored in the airbag control unit.Once you connect the emulator your diagnostic tool will be able to remove old errors and turn off the SRS/airbag warning. Unfortunately, the errors related to the safety systems are not removing automatically.Voltage: 12VBefore purchase, please scan your car with a diagnostic tool to make sure your SRS/airbag warning is caused by a defective mat. If your car is W168 Airbag unit, the Type 6 Emulator could not support Not support for W203Colour:blackMaterial:plasticPackage Contents:1 x EmulatorOnly 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.