Q:
A: To use the hands free device through the MB features on the 2005 C240 originally required an MB phone kit and MB handset to utilize the vehicle's phone features. However, f you get a blue tooth compatible phone, you do not need to have an MB handset, instead, you will need the bluetooth adapter. Unfortunately, this is a costly installation if the MB phone kit is not already installed by the previous owner. A less expensive option is aftermarket equipment installed, but this will not work with your vehicle's phone feature