Before you will place an order, you should answer a few question to make sure that you will buy the correct item for your car and that you need it in the first place.
In regard to BMW and Mercedes, it is important to know to what market the car was dedicated - the EU or the US.
Check the models with 2-pin seat occupancy sensor plug installed.
What kind of a plug is in my BMW model?
How to check what kind of an emulator will work on my C-Class Mercedes W203
How to install a 2-pin seat occupancy sensor emulator and a seat belt emulator into a BMW in a few easy steps
Pictures and instructional video included!