This part was attached to the cruise control module under the dash. I thought it had something to do with cruise operation until I called local Mercedes parts shop. They said the above part was for the seatbelt warning buzzer. Upon finding that out I thought why replace if it only controls buzzer. Does above part perform any other function that would change my oponion not to replace?
For info I was checking the soldering on my control module board as to why I came across warning buzzer. Johnny